4-9-2020 MONTE CORONA, VALENCIA - VESTAL MOTH (Rhodometra sacraria)

Rhodometra sacraria, the vestal, is a moth of the family Geometridae. The species was first described by Carl Linnaeus in his 1767 12th edition of Systema Naturae.

It can be found throughout Europe, in the Near East, in North Africa, in the Afrotropical realm and in large parts of Asia. It is also found in South America (Chile and Argentina).

Rhodometra sacraria inhabits meadows, forest clearing, paths, gardens and urban environments.

Rhodometra sacraria has a wingspan reaching 22–28 mm, while the length of the forewings is 12–14 mm. The late generations are smaller and the wingspan has an average of 16–26 mm. These moths are easily distinguishable from the mahogany or pink stripe, located on yellowish or cream background, crossing diagonally the dorsal sides of the upperwings from the posterior margin up to the apex. Discal spots are usually present and have the same colour as the postmedial line.

The dorsal sides of the hindwings are whitish and unmarked. The fringes on the wings are mostly in the basic colour. The abdomen is pure white. Head and thorax are straw yellow. In males the antennae are bipectinated to three-fourths length. The hind tibiae bear two pairs of spurs.

The intensity and the extent of the pink pigmentation is rather variable, depending on the seasonal temperature in the development of the pupae.

5-9-2020 VILLALONGA RESERVIOR, VALENCIA - EPAULET SKIMMER DRAGONFLY (MALE) (Orthetrum chrysostigma)

Orthetrum chrysostigma, the epaulet skimmer, is a species of dragonfly in the family Libellulidae. It is found in Algeria, Angola, Benin, Botswana, Burkina Faso, Cameroon, Central African Republic, Chad, the Democratic Republic of the Congo, Ivory Coast, Egypt, Equatorial Guinea, Ethiopia, Gambia, Ghana, Guinea, Kenya, Liberia, Libya, Malawi, Mali, Mauritania, Morocco, Mozambique, Namibia, Niger, Nigeria, Senegal, Sierra Leone, Somalia, South Africa, Sudan, Tanzania, Togo, Uganda, Zambia, Zimbabwe, and possibly Burundi as well as Canary Islands, Israel, and Portugal. It was recorded in the Maltese Islands in 2010. One was also spotted in Tel Aviv, Israel in August 2022.

Its natural habitats are subtropical or tropical moist lowland forests, dry savanna, moist savanna, subtropical or tropical dry shrubland, subtropical or tropical moist shrubland, rivers, intermittent rivers, shrub-dominated wetlands, swamps, freshwater lakes, intermittent freshwater lakes, freshwater marshes, intermittent freshwater marshes, and freshwater springs. The adults prey on various flying insects. The bodies of adult males are blue, and those of young and females are yellow and brown.

Another pruinose Skimmer species, said to be one of Africa’s most common dragonflies, that has made it up into Spain.

We found our first example at the river running through Jalon which we managed to visit in August, 2013, and very happy to find it we were, too. Similar to O. brunneum (Southern Skimmer) in that males are powder blue with yellowish pterostigmas.

Orthetrum chrysostigma, the epaulet skimmer, is a species of dragonfly in the family Libellulidae. It is found in Algeria, Angola, Benin, Botswana, Burkina Faso, Cameroon, Central African Republic, Chad, the Democratic Republic of the Congo, Ivory Coast, Egypt, Equatorial Guinea, Ethiopia, Gambia, Ghana, Guinea, Israel, Kenya, Liberia, Libya, Malawi, Mali, Mauritania, Morocco, Mozambique, Namibia, Niger, Nigeria, Senegal, Sierra Leone, Somalia, South Africa, Sudan, Tanzania, Togo, Uganda, Zambia, Zimbabwe, and possibly Burundi as well as Canary Islands, and Portugal. It was recorded in the Maltese Islands in 2010.

Its natural habitats are subtropical or tropical moist lowland forests, dry savanna, moist savanna, subtropical or tropical dry shrubland, subtropical or tropical moist shrubland, rivers, intermittent rivers, shrub-dominated wetlands, swamps, freshwater lakes, intermittent freshwater lakes, freshwater marshes, intermittent freshwater marshes, and freshwater springs. The adults prey on various flying insects. The bodies of adult males are blue, and those of young and females are yellow and brown.

5-9-2020 VILLALONGA RESERVIOR, VALENCIA - COPPER DEMOISELLE DAMSELFLY (FEMALE) (Calopteryx haemorrhoidalis)

Calopteryx haemorrhoidalis is a species of damselfly in the family Calopterygidae known by the common names copper demoiselle and Mediterranean demoiselle.

This species is native to the western Mediterranean Basin in Europe (Iberia, southern France, Italy, Monaco) and North Africa (Algeria, Morocco, Tunisia). It is common in much of its range.

It lives along rivers and streams, but also in sunny larger waters. Though it may be affected by habitat changes such as water pollution.

Calopteryx haemorrhoidalis can reach a body length of about 45–48 millimetres (1.8–1.9 in). The abdomen length is of about 34–43 millimetres (1.3–1.7 in) in males, of 31–43 millimetres (1.2–1.7 in) in females. The length of the wings is of 23–32 millimetres (0.91–1.26 in) in males, of 25–37 millimetres (0.98–1.46 in) in the females.

The males have a dark, metallic shining body, the color of which can be red-violet, golden or copper-colored. On the underside of the last three abdominal segments there red area, the so-called "red lantern" (hence the Latin species name haemorrhoidalis, meaning "blood flow"). The wings of males show a large dark area, while the females have a brown band to the wing tip and a metallic-green to bronze-colored body, with a brown belt on the back.

The flight time of this species ranges from May to September. The males have a characteristic mating dance, showing the abdomen end and spreading their wings wide. The male of this species is territorial, defending sites where females may choose to lay eggs.

This species can hybridize with Calopteryx splendens.

1-9-2020 PARADOR TERUEL, ARAGON - CATALONIA WALL LIZARD (Podarcis liolepis)

The Catalonian wall lizard (Podarcis liolepis), often called the Columbretes wall lizard or sargantana bruna, is a slender, 15–20 cm long reptile native to Northeast Spain and Southern France. Known for being highly adaptable, these brownish, long-tailed lizards thrive on rocks, walls, and in human settlements from sea level to 2000m in the Pyrenees. 

Key Facts About the Catalonian Wall Lizard:

Appearance: They are slender with long tails (roughly two-thirds of total length) and narrow, tapered heads. Their color is usually grey-brown, often with faint, reticulated, or striped patterns, especially in females.

Habitat: They prefer sunny areas and are found in rocky areas, dry-stone walls, and buildings. They are highly adapted to climbing.

Distribution: Primarily found in Catalonia (Spain), extending to the Columbretes Islands and parts of Southern France.

Diet: They are insectivores, feeding on insects such as crickets and grasshoppers.

Behavior: They are diurnal (active during the day).

Subspecies: Significant variability exists, with identified forms like P. liolepis cebennensis (Southern France) and P. liolepis atratus (Columbretes Archipelago).

Status: Classified as "Least Concern" (LC) by the IUCN, though they face threats from habitat alteration.

Distinction: Formerly considered a subspecies of the Iberian wall lizard (Podarcis hispanicus), it is now recognized as a distinct species. 

4-9-2020 MONTE CORONA, VALENCIA - JUMPING SPIDER (Menemerus semilimbatus)

Menemerus semilimbatus are about 6.5–8.4 millimetres (0.26–0.33 in) long, the male being slightly smaller than the female. These fairly big jumping spiders are dorso-ventrally flattened and are covered with short dense, grayish-white hairs, with hairy whitish palps and a white band on the side margins of the carapace, showing also a small white, triangular marking in the middle. The eyes are large and forward-facing. The legs are light brown with darker rings and patches, while the abdomen is dorsally yellowish or grayish, with a characteristic pattern of several bright V-shaped markings. The females show a notch at the posterior edge of the epigyne and two oval depressions in the anterior half.

Menemerus semilimbatus is a Mediterranean species widely distributed in Europe, southern Asia and in Africa. In the Americas, it has been reported in Argentina, Chile, Ecuador and USA.

These spiders are synanthropic living in gardens and inside and on the outside of houses. It is usually found on the walls of buildings where it stalks its prey.

Menemerus semilimbatus is a jumping spider, and jumping spiders are venomous, according to WebMD and Healthline. However, their venom is not considered dangerous to humans. While they can bite if they feel threatened, their venom is generally not strong enough to cause serious illness. 

3-9-2020 MONTE CORONA, VALENCIA - BROAD SCARLET DRAGONFLY (FEMALE) (Crocothemis erythraea)

The scarlet dragonfly (Crocothemis erythraea) is a species of dragonfly in the family Libellulidae. Its common names include broad scarlet, common scarlet-darter, and scarlet darter.

The scarlet dragonfly is a common species in southern Europe and throughout Africa. It also occurs across western Asia as far as southern China. It is a very rare vagrant in Britain. Its first record in the country was at Hayle Kimbro Pool, The Lizard, Cornwall, on 7 August 1995. Since then there have been a few further records at scattered locations throughout Britain.

A wide range of both running and standing waters, except those that are shaded. Adults may be found some distance from water in habitats ranging from desert to open woodland; absent from dense forest.

Crocothemis erythraea can reach a length of 33–44 millimetres (1.3–1.7 in). These dragonflies haves a flattened and rather broad abdomen. The adult male scarlet dragonfly has a bright scarlet red, widened abdomen, with small amber patches at the bases of the hindwings. Also the veins on the leading edges of the wings are red. Females and immatures are yellow-brown and have a conspicuous pale stripe along the top of the thorax.

1-9-2020 PARADOR TERUEL, ARAGON - RED ADMIRAL BUTTERFLY (Vanessa atalanta)

Vanessa atalanta, the red admiral or, previously, the red admirable, is a well-characterized, medium-sized butterfly with black wings, red bands, and white spots. It has a wingspan of about 2 inches (5 cm). It was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. The red admiral is widely distributed across temperate regions of North Africa, the Americas, Europe, Asia, and the Caribbean] It resides in warmer areas, but migrates north in spring and sometimes again in autumn. Typically found in moist woodlands, the red admiral caterpillar's primary host plant is the stinging nettle (Urtica dioica); it can also be found on the false nettle (Boehmeria cylindrica). The adult butterfly drinks from flowering plants like Buddleia and overripe fruit. Red admirals are territorial; females will only mate with males that hold territory. Males with superior flight abilities are more likely to successfully court females. It is known as an unusually calm butterfly, often allowing observation at a very close distance before flying away, also landing on and using humans as perches.

1-9-2020 PARADOR TERUEL, ARAGON - CONTINENTAL STRIPED SHIELD BUG (Graphosoma italicum ssp italicum)

Graphosoma italicum italicum (often called the Italian striped bug or minstrel bug) is a 8–12 mm shield bug characterized by bright red and black longitudinal stripes, black antennae, and black legs. Common across Europe, it inhabits warm, sunny areas, feeding on Apiaceae (carrot family) plants and acting as aposematic to deter predators with its bad taste.

Key Facts on Graphosoma italicum italicum

Appearance: The body is almost circular with a large shield, featuring bright red ground color with six bold black bands on the pronotum.

Leg Color: A distinguishing feature of G. italicum is its mostly black legs, separating it from the similar G. lineatum, which has red legs.

Diet and Habitat: They are common in sunny, dry meadows and prefer feeding on the flowers of Apiaceae (umbellifers) such as fennel and wild carrot.

Behavior & Protection: Their vibrant red and black stripes serve as aposematic coloration (warning signals), indicating a foul taste to predators.

Life Cycle: They have one generation a year. Females lay about thirty yellowish, barrel-shaped eggs on vegetation.

Nymphs: Nymphs do not have the striped red/black pattern; they are generally brownish or grayish.

Geographical Range: Primarily in South Europe, though they are expanding north, with breeding populations recently found in the UK.

Distinction: Previously considered a subspecies of G. lineatum, it is now recognized as a distinct species (G. italicum), with G. italicum italicum being the common European form.

Pest Status:While mainly feeding on wild plants, they can occasionally cause damage to cultivated carrots and fennel by sucking plant fluids, leading to reduced plant vigor.

1-9-2020 LAGUNA DEL CANIZAR, ARAGON - EUROPEAN STONECHAT (FEMALE) (Saxicola rubicola)

The European stonechat, Saxicola rubicola, is a small, charming passerine bird, once thought to be a member of the thrush family but now placed within the Old World flycatcher family, Muscicapidae. This species exhibits a striking sexual dimorphism, with males donning a black plumage with vibrant orange throats and females wearing a more subdued brown.

Males in their summer plumage are unmistakable with their black heads, orange throats, and white bellies. They also sport a distinctive white half-collar and small white patches on the wings and rump. Females, on the other hand, are predominantly brown with less pronounced white wing patches. Both sexes have notably short wings, which are shorter than those of their migratory relatives.

The European stonechat favors heathlands, coastal dunes, and open grasslands dotted with shrubs, brambles, and heather. These habitats provide the perfect backdrop for their active foraging and breeding behaviors.

This species is widely distributed across Europe, reaching as far east as Ukraine and the South Caucasus, and can also be found in parts of North Africa.

Stonechats are known for their lively presence, often perching conspicuously as they keep a vigilant eye on their surroundings. They exhibit a partial migratory pattern, with some populations moving southward to escape the colder winters.

The male stonechat's song is a delightful, high-pitched twitter, reminiscent of a dunnock's melody. Both sexes communicate with a distinctive call that evokes the sound of two stones being tapped together.

European stonechats are monogamous during the breeding season and commence their reproductive efforts at one year of age. They raise two to three broods per season, with the female constructing the nest and both parents tending to the young.

1-9-2020 LAGUNA DEL CANIZAR, ARAGON - EUROPEAN STONECHAT (Saxicola rubicola)

The European stonechat, Saxicola rubicola, is a small, charming passerine bird, once thought to be a member of the thrush family but now placed within the Old World flycatcher family, Muscicapidae. This species exhibits a striking sexual dimorphism, with males donning a black plumage with vibrant orange throats and females wearing a more subdued brown.

Males in their summer plumage are unmistakable with their black heads, orange throats, and white bellies. They also sport a distinctive white half-collar and small white patches on the wings and rump. Females, on the other hand, are predominantly brown with less pronounced white wing patches. Both sexes have notably short wings, which are shorter than those of their migratory relatives.

The European stonechat favors heathlands, coastal dunes, and open grasslands dotted with shrubs, brambles, and heather. These habitats provide the perfect backdrop for their active foraging and breeding behaviors.

This species is widely distributed across Europe, reaching as far east as Ukraine and the South Caucasus, and can also be found in parts of North Africa.

Stonechats are known for their lively presence, often perching conspicuously as they keep a vigilant eye on their surroundings. They exhibit a partial migratory pattern, with some populations moving southward to escape the colder winters.

The male stonechat's song is a delightful, high-pitched twitter, reminiscent of a dunnock's melody. Both sexes communicate with a distinctive call that evokes the sound of two stones being tapped together.

European stonechats are monogamous during the breeding season and commence their reproductive efforts at one year of age. They raise two to three broods per season, with the female constructing the nest and both parents tending to the young.

The European stonechat can be confused with the Siberian stonechat and the African stonechat, but genetic evidence supports their distinction as separate species.

These birds are adept insectivores, gleaning a variety of invertebrates from their environment to sustain themselves and their offspring.

1-9-2020 LAGUNA DEL CANIZAR, ARAGON - GREAT CRESTED GREBE (Podiceps cristatus)

The great crested grebe (Podiceps cristatus) is a member of the grebe family of water birds. The bird is characterised by its distinctive appearance, featuring striking black and white plumage, and elaborate courtship display that involves synchronised dances and displays.

The great crested grebe is the largest member of the grebe family found in the Old World, with some larger species residing in the Americas. They measure 46–51 cm (18–20 in) long with a 59–73 cm (23–29 in) wingspan and weigh 0.9 to 1.5 kg (2.0 to 3.3 lb).[8][9] It is an excellent swimmer and diver, and pursues its fish prey underwater. The adults are unmistakable in summer with head and neck decorations. In winter, this is whiter than most grebes, with white above the eye, and a pink bill.

The call is a loud barking rah-rah-rah. They can also produce a clicking kek call, and deep growls.

Juveniles are recognisable by their plumage, with their heads featuring alternating black and white stripes. They lose these markings when they become adults.

The great crested grebe feeds mainly on fish, but also small crustaceans, insects, small frogs and newts.

The great crested grebe has an elaborate mating display. Like all grebes, it nests on the water's edge. The nest is built by both sexes. The clutch averages four chalky-white eggs which average 54 mm × 37 mm (2.1 in × 1.5 in) in size and 42 g (1.5 oz) in weight. Incubation is by both parents and begins as soon as the first egg is laid. The eggs hatch asynchronously after 27 to 29 days. The precocial young are cared for and fed by both parents.

Young grebes are capable of swimming and diving almost at hatching. The adults teach these skills to their young by carrying them on their back and diving, leaving the chicks to float on the surface; they then re-emerge a few feet away so that the chicks may swim back onto them.

1-9-2020 SAN BLAS TERUEL, ARAGON - WESTERN BLACK-EARED WHEATEAR (Oenanthe hispanica)

The western black-eared wheatear (Oenanthe hispanica) is a wheatear, a small migratory passerine bird that was formerly classed as a member of the thrush family Turdidae, but is now considered to be an Old World flycatcher (family Muscicapidae). It was formerly (and still is by some authorities) considered conspecific with the eastern black-eared wheatear.

The breeding male has the forehead and crown white or nearly white, the mantle buff, and the wings blacker than those of the northern wheatear. The underparts are white tinged with buff. The back, upper tail coverts and most of the tail are white. A black mask extends from the ear coverts to the bill. The throat can be either black or white.

In autumn and winter the head and mantle are distinctly buff, as are the underparts (including the throat in non-black-throated individuals), but the buff varies in intensity. Except for the central pair, the tail feathers are much whiter than in the northern wheatear, the white on the inner web often extending to the tip.

The female is a browner bird, but has the characteristic white lower back, and her seasonal changes are less marked.

The male western black-eared wheatear can be distinguished from the male eastern black-eared wheatear by its more buff-tinged upperparts, giving it a less distinctly black-and-white appearance than the latter species, as well as having the black of the mask stopping at the base of the bill rather than extending slightly above. Black-throated individuals of this species have less black on the throat and face than on the eastern birds, and the black generally terminates less abruptly. Females of this species differ from their eastern counterparts in being warmer brown overall.

Global Distribution: The Western Black-eared Wheatear breeds in Southwestern and South-central Europe (including Spain) and Northwestern Africa. The Eastern Black-eared Wheatear breeds in Southeastern Europe, Asia Minor, and the Middle East.

Migration: Both are strongly migratory species, with the Western populations wintering in the West African Sahel and Eastern populations wintering primarily in East Africa.Habitat Preference: Both prefer open, rocky habitats, sparse grasslands, and scrublands, making sightings common in Mediterranean biomes.

2-9-2020 SIERRA DE ALBARRACIN, ARAGON - SOUTHERN WHITE ADMIRAL BUTTERFLY (Limenitis reducta)

Limenitis reducta, the southern white admiral, is a butterfly of the family Nymphalidae.

Subspecies

Limenitis reducta reducta Staudinger, 1901

Limenitis reducta herculeana Stichel, 1909

 

This species can be found in central and southern Europe (northern Iberia, southern and eastern France, Italy, the Balkans, and the Alps), in Western Asia, in Syria, the Caucasus and Iran. These butterflies live in light woodland, in woodland glades and in forest edge, at an elevation of 0–1,650 metres (0–5,413 ft) above sea level.

Limenitis reducta has a wingspan of 46–54 mm. The upperside of the wings is brown black with metallic blue shine, large transversal band of white markings and a submarginal line of small blue dots. The blue sheen varies with the angle of light. The ground colour of underside of the hindwings is red, with a silvery basal area, a row of white markings and a row of black spots. A few white cell spots are also present on the underside of the forewings. The caterpillars can reach a length of 27 millimetres (1.1 in). They are light green to dull green on the back, red brown on the underside. On the back there are numerous brown thorns.

This species is rather similar to Limenitis camilla, Neptis rivularis and Araschnia levana f. prorsa.

2-9-2020 SIERRA DE ALBARRACIN, ARAGON - GRAYLING BUTTERFLY (Hipparchia semele)

The Grayling butterfly (Hipparchia semele) is a medium-sized, highly camouflaged insect found across Europe. It prefers warm, sunny, and dry habitats with sparse vegetation and plenty of bare ground, such as sand dunes and heathlands.

Key Identification & Behavior

Camouflage: It is renowned for its "rock-like" mottled-brown underwings. When at rest, it keeps its wings closed, tilts its body to avoid casting a shadow, and tucks its forewings behind its hindwings to hide its eyespots.

Sunbathing: Rather than nectaring on flowers frequently, adults spend much of their time basking on bare stones or soil, angling their wings to absorb maximum heat.

Flight Style: It is a strong flyer with a distinctive looping and gliding pattern. While in flight, pale yellow-orange bands on the upper wings become visible.

Life CycleFlight Period: The adult butterflies are typically on the wing from July to early September.Eggs & Larvae: Spherical white eggs are laid singly on fine-leaved grasses growing in direct sunlight. The larvae feed at night, spending the winter hibernating in grass tussocks before maturing by June.

Pupation: Unlike many butterflies that attach to stems, the Grayling pupates in a silk-lined cavity just beneath the soil's surface.

Conservation StatusHabitats: While still widespread on coastlines and southern heaths, inland populations have suffered long-term severe declines due to habitat loss and changing land use.

Status: The species is a conservation priority and is listed as a Red List priority species in the UK and Ireland.

2-9-2020 SIERRA DE ALBARRACIN, ARAGON - SOUTHERN BROWN ARGUS BUTTERFLY (Aricia cramera)

The Southern Brown Argus (Aricia cramera) is a small, dark-brown butterfly found in Southern Europe, North Africa, and the Canary Islands. Similar to the Common Blue, it is distinguished by brown uppersides, orange marginal spots, and a, 28mm wingspan, flying in multiple, continuous broods from March to October.

Key Facts

Scientific Name: Aricia cramera.

Appearance: Both sexes are dark brown with a distinct orange lunule band on the margins of both wings. They often possess a specific spot configuration on the underwing (a "keyhole" spot on the hindwing) that differs from the similar Brown Argus (Aricia agestis).

Habitat: Prefers sunny, dry open areas, flowery meadows, and rocky terrains on calcareous soils.

Range: Found in Morocco, Tunisia, Spain, Portugal, Italy (Sardinia), Mediterranean islands, and the Canary Islands.

Flight Period: March to October, with multiple overlapping generations.

Larval Food Plant: The larvae feed primarily on Geranium species, such as Erodium cicutarium.

Behaviour: Known to be territorial, with males often sitting on grass stems to check for mates.Key Identification PointsWingspan: 2.2 to 3 cm.

Distinction: They resemble female Common Blues, but Aricia cramera generally lack the blue scales on the upper wing surface.Observation: They are often found in colonies and do not travel far from their breeding site.

Aricia cramera, the southern brown argus, is a butterfly of the family Lycaenidae. It is a butterfly of Southern Europe and North Africa and can be found from Morocco and Tunisia up to Spain and Portugal, on Mediterranean islands including Menorca and on the Canary Islands.

The wingspan ranges to up to 30 mm. The butterfly flies from May to September depending on the location.

The larvae feed on Erodium, Helianthemum and Geranium species.

2-9-2020 SIERRA DE ALBARRACIN, ARAGON - HORSE CHESTNUT (Aesculus hippocastanum)

Aesculus hippocastanum, the horse chestnut, is a species of flowering plant in the maple, soapberry and lychee family Sapindaceae. It is a large, deciduous, synoecious (hermaphroditic-flowered) tree. It is also called horse-chestnut, European horsechestnut, buckeye, and conker tree. It is not to be confused with the sweet chestnut or Spanish chestnut, Castanea sativa, which is a tree in another family, Fagaceae.

Aesculus hippocastanum is a large tree, growing to about 39 metres (128 ft) tall with a domed crown of stout branches. On old trees, the outer branches are often pendulous with curled-up tips. The leaves are opposite and palmately compound, with 5–7 leaflets 13–30 cm (5–12 in) long, making the whole leaf up to 60 cm (24 in) across, with a 7–20 cm (3–8 in) petiole. The leaf scars left on twigs after the leaves have fallen have a distinctive horseshoe shape, complete with seven "nails". The flowers are usually white with a yellow to pink blotch at the base of the petals; they are produced in spring in erect panicles 10–30 cm (4–12 in) tall with about 20–50 flowers on each panicle. Its pollen is not poisonous for honey bees.[10] Usually only 1–5 fruits develop on each panicle. The shell is a green, spiky capsule containing one (rarely two or three) nut-like seeds called conkers or horse-chestnuts. Each conker is 2–4 cm (3⁄4–1+1⁄2 in) in diameter, glossy nut-brown with a whitish scar at the base.

2-9-2020 SIERRA DE ALBARRACIN, ARAGON - COMMON CHAFFINCH (MALE) (Fringilla coelebs)

The Eurasian chaffinch, common chaffinch, or simply the chaffinch (Fringilla coelebs) is a common and widespread small passerine bird in the finch family. The male is brightly coloured with a blue-grey cap and rust-red underparts. The female is more subdued in colouring, but both sexes have two contrasting white wing bars and white sides to the tail. The male bird has a strong voice and sings from exposed perches to attract a mate.

The chaffinch breeds in much of Europe, across the Palearctic to Siberia. The female builds a nest with a deep cup in the fork of a tree. The clutch is typically four or five eggs, which hatch in about 13 days. 

The chicks fledge in around 14 days, but are fed by both adults for several weeks after leaving the nest. Outside the breeding season, chaffinches form flocks in open countryside and forage for seeds on the ground. During the breeding season, they forage on trees for invertebrates, especially caterpillars, and feed these to their young. They are partial migrants; birds breeding in warmer regions are sedentary, while those breeding in the colder northern areas of their range winter further south.

The eggs and nestlings of the chaffinch are taken by a variety of mammalian and avian predators. Its large numbers and huge range mean that chaffinches are classed as of least concern by the International Union for Conservation of Nature.

2-9-2020 SIERRA DE ALBARRACIN, ARAGON - SOUTHERN BROWN ARGUS BUTTERFLY (Aricia cramera)

Aricia cramera, the southern brown argus, is a butterfly of the family Lycaenidae. It is a butterfly of Southern Europe and North Africa and can be found from Morocco and Tunisia up to Spain and Portugal, on Mediterranean islands including Menorca and on the Canary Islands.

The wingspan ranges to up to 30 mm. The butterfly flies from May to September depending on the location.

The larvae feed on Erodium, Helianthemum and Geranium species.

Key Facts

Scientific Name: Aricia cramera.

Appearance: Both sexes are dark brown with a distinct orange lunule band on the margins of both wings. They often possess a specific spot configuration on the underwing (a "keyhole" spot on the hindwing) that differs from the similar Brown Argus (Aricia agestis).

Habitat: Prefers sunny, dry open areas, flowery meadows, and rocky terrains on calcareous soils.

Range: Found in Morocco, Tunisia, Spain, Portugal, Italy (Sardinia), Mediterranean islands, and the Canary Islands.

Flight Period: March to October, with multiple overlapping generations.

Larval Food Plant: The larvae feed primarily on Geranium species, such as Erodium cicutarium.

Behaviour: Known to be territorial, with males often sitting on grass stems to check for mates.Key Identification PointsWingspan: 2.2 to 3 cm.

Distinction: They resemble female Common Blues, but Aricia cramera generally lack the blue scales on the upper wing surface.Observation: They are often found in colonies and do not travel far from their breeding site.

Aricia cramera, the southern brown argus, is a butterfly of the family Lycaenidae. It is a butterfly of Southern Europe and North Africa and can be found from Morocco and Tunisia up to Spain and Portugal, on Mediterranean islands including Menorca and on the Canary Islands.

The wingspan ranges to up to 30 mm. The butterfly flies from May to September depending on the location.

The larvae feed on Erodium, Helianthemum and Geranium species.

2-9-2020 SIERRA DE ALBARRACIN, ARAGON - CLOUDED YELLOW BUTTERFLY (Colias croceus)

Colias croceus, clouded yellow, is a small butterfly of the family Pieridae, the yellows and whites.

Colias croceus is one of the most widespread species in Europe. The common clouded yellow's breeding range is North Africa and southern Europe and eastwards through Turkey into the Middle East, but it occurs throughout much of Europe as a summer migrant, in good years individuals reaching Scandinavia. In Asia, its range extends into central Siberia in the north and barely into India in the south; it is not found in Central Asia.

This species is primarily an immigrant to the UK, originating from southern Europe and northern Africa. In the UK they can be seen on the south coast almost every year in varying numbers, and regularly breed there. Occurrence in the rest of the UK varies considerably from year to year, but they are increasingly observed as far north as Dumfries and Galloway. It has also been recorded in Ireland from the Raven, Co. Wexford, to Belfast, Co. Down.

A truly migratory European butterfly, this species is famous for occasional mass migrations and subsequent breeding, which are often referred to in the United Kingdom as "clouded yellow years". Notable clouded yellow years include 1877, 1947, 1983, 1992, 1994, 1996 and 2000.

Colias croceus has a wingspan of 46–54 millimetres (1.8–2.1 in). The upperside of the wings is golden to orange yellow with a broad black margin on all four wings and a black spot near the centre forewing. Usually these butterflies settles with its wings closed, consequently the black margin of the uppersides of the wings is difficultly visible.

The underside lacks the black borders and is lighter, with a more greenish tint, particularly on the forewings. In the forewing underside is the same dark spot as on the upperside, but often with a light centre; the hindwing underside has a white centre spot, often with a smaller white or dark dot immediately above it. Sometimes, a row of black dots occurs on the underwings' outer margins, corresponding to where the black border ends on the upperside. Females differ from the males in having yellow spots along the black borders on the upperside.

In flight, Colias croceus is easily identifiable by the intense yellow colouring, much brighter than that of the lemon-yellow male common brimstone which also lacks black markings. Like all Colias species they never open their wings at rest.

In about 5% of females, the golden upperside colouration is replaced by a pale cream colour. These females have been distinguished as form helice. The pale form helice does not seem to be distinct, as intermediates exist, and the variation is to some extent related to humidity during development, with dryer conditions producing paler colouration. These pale forms helice can be confused with Berger's clouded yellow (Colias alfacariensis) and the rarer pale clouded yellow (Colias hyale). Even the palest C. croceus tends to have more black on the upperside, however, in particular on the hindwings.

Young caterpillars are yellow-green with a black head. Later they become completely dark green, with a white red-spotted lateral line after the third moult. The pupae are green and have a yellow side stripe.

2-9-2020 SIERRA DE ALBARRACIN, ARAGON - FALSE MEADOW SAFFRON (Colchicum montanum)

False Meadow Saffron (Colchicum autumnale) is a highly toxic, autumn-blooming plant often confused with true, edible saffron (Crocus sativus). While it produces pink, crocus-like flowers, it is a member of the Colchicaceae family and contains poisonous colchicine, which can be fatal if ingested. Key features include flowers appearing without leaves ("naked ladies") in autumn and strap-like leaves in spring. 

Key Facts About False Meadow Saffron (Colchicum autumnale):

Highly Toxic: All parts of the plant, especially the seeds, are dangerous if eaten due to the compound colchicine.

Appearance: Known as "naked ladies" or "naked boys" because the pink flowers emerge in autumn without any leaves.

Distinction from True Saffron: Unlike true saffron, it is not used for cooking and should not be mistaken for it.

Foliage: Leaves emerge in the spring, which can be mistakenly gathered as wild greens like Ramsons.

Habitat: Commonly found in damp hay meadows and gardens.

Medicinal Context: Colchicine, derived from the plant, has been used in medicine but is highly toxic in larger quantities. 

Differences from True Saffron:

True Saffron: Crocus sativus (Iridaceae family), stigmas are harvested for culinary spice.

False Saffron: Colchicum autumnale (Colchicaceae family), highly poisonous.