Wednesday, 5 August 2020
Tuesday, 4 August 2020
4-8-2020 MONTE CORONA, VALENCIA - GROUND SPIDER (Family Gnaphosidae)
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Ground spiders (family Gnaphosidae) are a massive, global family of over 2,500 species known for being fast-running, nocturnal,, hunting predators that do not build prey-capture webs. They are identified by their cylindrical, widely separated front spinnerets and often hide under rocks, logs, or in silk-lined tubular retreats during the day.
Key Facts about Ground Spiders (Gnaphosidae)
Appearance: They are usually dull-colored (black, brown, grey, reddish), ranging from small to medium size (typically less than 1/2 inch). A defining, reliable feature is their cylindrical, barrel-shaped anterior spinnerets, which are separated by about one spinneret diameter.
Hunting Method: Ground spiders are active hunters that run down their prey on the ground surface. Instead of a sticky web, they use a fast, thick, gluey, silk strand to immobilize prey.
Habitat and Behavior: They are found in diverse habitats, including grasslands, forests, and inside homes, often under debris, rocks, or in leaf litter. They are most active at night or during dawn/dusk.
Shelter: While they do not make webs to catch prey, both sexes construct tubular, silk-lined nests or retreats under stones, bark, or in crevices to hide during the day.
Venom and Bite: While they are capable of biting, they are generally not considered dangerous to humans. Their bite is often described as having no consequence, though it can cause minor discomfort, local irritation, or, rarely, tissue damage.
Diversity: With over 2,500 described species in more than 100 genera, it is the seventh largest spider family. Common genera include Gnaphosa, Drassodes, Micaria, Cesonia, and Zelotes.
Identification: They are often confused with other ground-dwelling spiders, but the distinct, prominent, forward-facing, and separated spinnerets are a key indicator.
4-8-2020 MONTE CORONA, VALENCIA - SPECKLED WOOD BUTTERFLY (Pararge aegeria)
The speckled wood (Pararge aegeria) is a butterfly found in and on the borders of woodland areas throughout much of the Palearctic realm. The species is subdivided into multiple subspecies, including Pararge aegeria aegeria, Pararge aegeria tircis, Pararge aegeria oblita, and Pararge aegeria insula. The color of this butterfly varies between subspecies. The existence of these subspecies is due to variation in morphology down a gradient corresponding to a geographic cline.
The background of the wings ranges from brown to orange, and the spots are either pale yellow, white, cream, or a tawny orange. The speckled wood feeds on a variety of grass species. The males of this species exhibit two types of mate locating behaviors: territorial defense and patrolling. The proportion of males exhibiting these two strategies changes based on ecological conditions. The monandrous female must choose which type of male can help her reproduce successfully. Her decision is heavily influenced by environmental conditions.
3-8-2020 MONTE CORONA, VALENCIA - WAVE MOTH (Genus Idaea)
Idaea, sometimes called Hyriogona (among other synonyms), is a large genus of geometer moths. It was erected by Georg Friedrich Treitschke in 1825. They are found nearly worldwide, with many native to the Mediterranean, the African savannas, and the deserts of western Asia.
The genus Idaea refers to a massive, nearly worldwide group of geometer moths (family Geometridae, subfamily Sterrhinae) known for their small size and varied, often cryptic patterns. As of 2013-2022, there are roughly 680 to over 1,000 recognized species in this genus, making it the third most species-rich group in its family.
Size: They are small moths, with wingspans typically measuring well under 30 mm (often 10-25 mm).
Their wings often feature shades of brown, white, or gray with delicate, wave-like lines (hence the common name "waves" for many species in this subfamily).
Adults frequently rest with their wings spread flat, often blending in with their surroundings.
Monday, 3 August 2020
Sunday, 2 August 2020
2-8-2020 VILLALONGA RESERVOIR, VALENCIA - LITTLE EGRET (Egretta garzetta)
The Little Egret, Egretta garzetta, is a dainty heron adorned in pure white plumage. It is characterized by a slender black beak, long black legs, and, notably in the western race, yellow feet. This elegant bird is a sight to behold with its graceful neck and poised stance.
Adult Little Egrets measure between 55–65 cm in length with a wingspan of 88–106 cm, and weigh 350–550 g. Their plumage is predominantly white, though some may exhibit bluish-grey coloration. Breeding adults boast ornate nape plumes reaching about 150 mm, along with distinctive feathers on the breast and elongated scapulars. The bill and lores are black, with greenish-grey skin at the base of the lower mandible and around the eye, which houses a yellow iris. Legs are black with contrasting yellow feet, though juveniles may have greenish-black legs and duller feet. The subspecies E. g. nigripes is distinguished by yellow skin between the bill and eye, and blackish feet.
The Little Egret frequents a variety of wetland habitats, from the shores of lakes and rivers to marshes and coastal regions. It is often found in open environments, such as mangroves, swamps, mudflats, and sandy beaches, as well as human-altered landscapes like rice fields.
The species has a broad breeding distribution across warm temperate to tropical regions of Asia, Africa, Australia, and Europe. Northern populations are migratory, wintering in Africa and southern Asia, while others remain as permanent residents in warmer areas.
Little Egrets are social yet territorial when feeding. They exhibit a range of foraging behaviors, from active chasing to patient ambush. Their movements are often in response to the presence of other animals, which may stir up prey.
The Little Egret's vocalizations include croaking and bubbling sounds at breeding colonies and a harsh alarm call when disturbed. These calls are similar to those of the Black-crowned Night Heron and the Cattle Egret.
Breeding colonies are often mixed with other water birds. Nests are platforms of sticks located in trees, shrubs, or reed beds. Clutches typically consist of three to five bluish-green eggs, incubated by both parents for about three weeks. The young fledge at approximately six weeks old.
The diet is diverse, including fish, amphibians, small reptiles, mammals, birds, crustaceans, molluscs, insects, spiders, and worms. The Little Egret employs various hunting techniques, both in water and on land, to capture its prey.
2-8-2020 VILLALONGA RESERVOIR, VALENCIA - EPAULET SKIMMER DRAGONFLY (MALE) (Orthetrum chrysostigma)
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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.
2-8-2020 MONTAVERNER, VALENCIA - NOMAD DRAGONFLY (FEMALE) (Sympetrum fonscolombii)
The red-veined darter or nomad (Sympetrum fonscolombii) is a dragonfly of the genus Sympetrum.
Sympetrum fonscolombii was named under the protonym Libellula fonscolombii by the Belgian entomologist Edmond de Sélys Longchamps, in 1840, in honor of the French entomologist Étienne of Fonscolombe (hence the species name). Its name is sometimes spelt fonscolombei instead of fonscolombii but Askew (2004) gives the latter as the correct spelling.
Sympetrum fonscolombii can reach a body length of 38–40 millimetres (1.5–1.6 in). This species is similar to other Sympetrum species but a good view with binoculars should give a positive identification, especially with a male.
Males have a red abdomen, redder than many other Sympetrum species. The frons and the thorax are red-brown. The eyes are brown above and blue/grey below. The wings have red veins and the wing bases of the hind-wings are yellow. The pterostigma is pale yellow with a border of black veins.
Female are similar but the abdomen is ochre yellow, not red, with two black lines along each side. The wings have yellow veins at the costa, leading edge and base, not red veins as found in the males. The legs of both sexes are mostly black with some yellow.
Immature males are like females but often with more red and a single line along each side of the abdomen.
2-8-2020 MONTAVERNER, VALENCIA - WALL BROWN BUTTERFLY (Lasiommata megera)
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Lasiommata megera, the wall or wall brown, is a butterfly in the family Nymphalidae (subfamily Satyrinae). It is widespread in the Palearctic realm with a large variety of habitats and number of generations a year.
P. megera L. [— xiphie Boisd. pt (45d). Above reddish yellow, with a black mark which traverses the distal band from the cell of the forewing to the abdominal margin of the hindwing, short black stripes crossing the disc and the cell of the forewing.
The species lives in North Africa, Europe, the Caucasus, Asia Minor, the Middle East, western Siberia, northern Tian Shan, Dzungarian Alatau, Kazakhstan and Dzungaria.
Habitats include forest edges and clearings, shrubby areas in ravines and river valleys and sparse woodlands. It is also found in mountain habitats up to 0–3,000 metres (0–9,843 ft) above sea level.
The imago flies from April to October in two or three generations depending on locality and altitude. The larva feeds on grasses in the genera Festuca, Bromus, Deschampsia, Poa, Dactylis and Brachypodium.
2-8-2020 MONTAVERNER, VALENCIA - EUROPEAN STONECHAT (FEMALE) (Saxicola rubicola)
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The European stonechat (Saxicola rubicola) is a small passerine bird that was formerly classed as a subspecies of the common stonechat. Long considered a member of the thrush family, Turdidae, genetic evidence has placed it and its relatives in the Old World flycatcher family, Muscicapidae.
European stonechats breed in heathland, coastal dunes and rough grassland with scattered small shrubs and bramble, open gorse, tussocks or heather. They are short-distance migrants or non-migratory, with part of the population (particularly from northeastern parts of the range, where winters are colder) moving south to winter further south in Europe and more widely in north Africa.
Perky little bird of open country, especially heathland with gorse, moorland, weedy meadows, scrubby marsh margins, and rough grassland with scattered low bushes. Perches atop bushes and on fences, dropping to the ground to feed, before flying back up to a perch. Male distinctive, with blackish head set off by big white patch on sides of neck, orangey breast. Female brownish overall with paler eyebrow (only behind eye, unlike Whinchat), dull orangey breast; shows paler rump in flight, contrasting with solidly blackish tail. Warbled song is short and buzzy. Calls include dry “tchak” and rising “weet.”
Saturday, 1 August 2020
30-7-2020 EL BERRO, MURCIA - MOORISH GECKO (Tarentola mauritanica)
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Tarentola mauritanica, known as the common wall gecko, is a species of gecko (Gekkota) native to the western Mediterranean area of North Africa and Europe. It has been introduced to Madeira and Balearic Islands, and the Americas (in Montevideo, Buenos Aires and California). A nocturnal animal with a predominantly insectivorous diet, it is commonly observed on walls in urban environments in warm coastal areas; it can be found further inland, especially in Spain where it has a tradition of cohabitation with humans as an insect hunter.
A robust species, up to 15 centimetres (5.9 in) long, its tubercules are enlarged and give the species a spiny armoured appearance.
The species was first described by Carl Linnaeus in 1758. It is also known as Moorish gecko, crocodile gecko, European common gecko, and, regionally, as osga (in Portuguese), salamanquesa (in Spanish) and dragó (in Catalan).
29-7-2020 EL BERRO, MURCIA - WESTERN HONEY BEE ( Apis mellifera)
The western honey bee or European honey bee (Apis mellifera) is the most common of the 7–12 species of honey bees worldwide. The genus name Apis is Latin for 'bee', and mellifera is the Latin for 'honey-bearing' or 'honey-carrying', referring to the species' production of honey.
Like all honey bee species, the western honey bee is eusocial, creating colonies with a single fertile female (or "queen"), many normally non-reproductive females or "workers", and a small proportion of fertile males or "drones". Individual colonies can house tens of thousands of bees. Colony activities are organized by complex communication between individuals, through both pheromones and the dance language.
The western honey bee was one of the first domesticated insects, and it is the primary species maintained by beekeepers to this day for both its honey production and pollination activities. With human assistance, the western honey bee now occupies every continent except Antarctica. Western honey bees are threatened by pests and diseases, especially the Varroa mite and colony collapse disorder. There are indications that the species is rare, if not extinct in the wild in Europe and as of 2014, the western honey bee was assessed as "Data Deficient" on the IUCN Red List. Numerous studies indicate that the species has undergone significant declines in Europe; however, it is not clear if they refer to population reduction of wild or managed colonies. Further research is required to enable differentiation between wild and non-wild colonies in order to determine the conservation status of the species in the wild, meaning self sustaining, without treatments or management.
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