Thursday, 4 June 2020
3-6-2020 MONTE CORONA, VALENCIA - COASTAL PEARL MOTH (Mecyna asinalis)
Mecyna asinalis, sometimes known as the madder pearl, is a species of moth of the family Crambidae found in Europe.
The wingspan is 25–29 millimetres (0.98–1.14 in). The forewings are grey; lines darker, first indistinct, sometimes followed by a dark fuscous triangular subdorsal spot, second sometimes blackish -dotted, curved, with a deep abrupt sinuation inwards below middle, often preceded by a brownish or dark fuscous trapezoidal subdorsal spot ; very large orbicular, and reniform discal spot somewhat paler, latter preceded and followed by faint brownish sometimes dark-edged spots. Hind are wings grey ; a darker postmedian line. The larva is yellow-brownish ; dorsal line reddish-brown ; subdorsal broader, brown ; lateral brown ; spots black.
The moth flies from May to October in two generations per year.
It is found in west and southern Europe, including Ireland, Britain, the Iberian Peninsula, France, Germany, Switzerland, Italy, Albania, Croatia, Greece and Sicily, Sardinia, Malta, Madeira, Corsica, the Azores and the Canary Islands.
3-6-2020 MONTE CORONA, VALENCIA - SPECKLED FOOTMAN MOTH (Coscinia cribraria)
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Coscinia cribraria, the speckled footman, is a species of moth belonging to the subfamily Arctiinae within the large family Erebidae. This moth has a widespread distribution in the Palearctic.
Coscinia cribraria has a forewing which has a background colour of dirty white marked with black streaks along the wings and crossbands made up of dark dots, both of which vary in extent. The subspecies arenaria has an almost pure white forewing. The speckled footman has a wingspan of between 30 and 35 mm (1.2 and 1.4 in).
Coscinia cribraria has a wide Palearctic distribution being found from Northwestern Africa Iberia and southern Great Britain east to China and Mongolia. In Europe, north of the Alps, the speckled footman is typically found on sandy heaths and open sandy pine forests. To the south of the Alps, it inhabits on dry mountain meadows with stony or rocky areas and around the Mediterranean this species can be found in habitats like maquis and in open forests.
Wednesday, 3 June 2020
2-6-2020 MONTE CORONA, VALENCIA - RED PALM WEEVIL (Rhynchophorus ferrugineus)
The palm weevil Rhynchophorus ferrugineus is one of two species of snout beetle known as the red palm weevil, Asian palm weevil or sago palm weevil. The adult beetles are relatively large, ranging between 2 and 4 centimetres (1 and 1+1⁄2 inches) long, and are usually a rusty red colour—but many colour variants exist and have often been classified as different species (e.g., R. vulneratus). Weevil larvae can excavate holes in the trunks of palm trees up to 1 metre (3.3 ft) long, thereby weakening and eventually killing the host plant. As a result, the weevil is considered a major pest in palm plantations, including the coconut palm, date palm and oil palm.
Originally from tropical Asia, the red palm weevil has spread to Africa and Europe, reaching the Mediterranean in the 1980s. It was first recorded in Spain in 1994, and in France in 2006. Additional infestations have been located in Malta, Italy (Tuscany, Sicily, Campania, Sardinia, Lazio, Marche, Puglia and Liguria), Croatia and Montenegro. It is also well established throughout most of Portugal, especially in the South. It also has established in Morocco, Tunisia, and other North African countries. The weevil was first reported in the Americas on Curaçao in January 2009 and sighted the same year in Aruba. It was reported in the United States at Laguna Beach, California late in 2010 but this was a misidentification of the closely related species, R. vulneratus, and it did not become established.It was reported in Uruguay in March 2022, and has since spread to many parts of the country.
This species of red palm weevil is reported to attack 19 palm species and is the worst such pest in the world. Although the weevil was first reported on coconut in Southeast Asia, it has gained a foothold on date palm over the last two decades in several Middle Eastern countries, and then expanded its range to Africa and Europe. This expansion has been due to the movement of infested planting material from contaminated to uninfected areas. In the Mediterranean region, the red palm weevil also severely damages Phoenix canariensis. Currently, the pest is reported in almost 15% of the global coconut-growing countries and in nearly 50% of the date palm-growing countries.
This weevil usually infests palms younger than twenty years. While the adult causes some damage through feeding, it is the burrowing of the larva into the heart of the palm that can cause the greatest mortality of trees. The adult female lays approximately two hundred eggs on new growth in the crown of the palm, at the base of young leaves, or in open lesions on the plant. The egg hatches into a white, legless larva. The larva will feed on the soft fibres and terminal buds, tunneling through the internal tissue of the tree for about a month. The larvae can occasionally grow to a length of 6 to 7 centimetres (2+1⁄2 to 3 in). At pupation, the larva will leave the tree and form a cocoon built of dry palm fibers in leaf litter at the base of the tree. The total life cycle takes about 3–4 months.
After fertilization, the adult female can lay between 300 and 500 eggs. They lay in holes they produced while searching for food, or take advantage of the cracks or wounds in a recently cut palm. At oviposition, females bend upward and the tarsi are anchored to the tissue with the spines of the third pair of legs to push the ovipositor into the tough palm tissue. After laying, the female protects and secures the eggs with a secretion that rapidly hardens around the eggs. On average, females produce 210 eggs per clutch, most of which hatch over a period of 3 days. The eggs are white, cylindrical, glossy, oval shaped, and measure 1 to 2.5 millimetres (3⁄64 to 3⁄32 in). developing insect with oxygen.
Larvae of Rhynchophorus ferrugineus are considered a delicacy in Southeast Asian cuisine. In some regions, however, larvae farming is strictly prohibited to prevent the potential devastation of plantation crops.
The main control method is through the application of a systemic insecticide. Insecticide is usually applied through a funnel about 5 centimetres (2 in) above the infested area of the trunk. The red palm weevil can be monitored using pheromone lures and alternative forms of control use field sanitation and mass trapping with traps baited with pheromone and plant derived semiochemicals. New alternative technologies using semiochemicals and bioinsecticides are being developed to attract the weevils to a point source and kill them. Another management technique is to drench the base of palm fronds with the entomopathogenic fungus Metarhizium robertsii (syn. M. anisopliae, Entomophthora anisopliae), or Beauveria bassiana.
Palms' natural defense against this weevil is understudied.
1-6-2020 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.
Tuesday, 2 June 2020
1-6-2020 MONTE CORONA, VALENCIA - SILVER Y MOTH (Autographa gamma)
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The silver Y (Autographa gamma) is a migratory moth of the family Noctuidae which is named for the silvery Y-shaped mark on each of its forewings.
The silver Y is a medium-sized moth with a wingspan of 30 to 45 mm. The wings are intricately patterned with various shades of brown and grey providing excellent camouflage. In the centre of each forewing there is a silver-coloured mark shaped like a lower case Y (y) or a lower case Greek letter gamma (γ). There are several different forms with varying colours depending on the climate in which the larvae grow.
The species is widespread across Europe and over almost all the Palearctic including North Africa. It is resident in the south of its range and adults fly almost throughout the year[citation needed]. In spring variable numbers migrate north reaching as far as Iceland, Greenland, and Finland with huge invasions taking place in some years[citation needed]. A second wave of migrants arrives in the summer[citation needed]. In central Europe and the British Isles adults are present in significant numbers from May onwards with numbers dwindling in late autumn as they are killed off by frosts. Some individuals fly south again to winter around the Mediterranean and Black seas.
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It occurs in a wide variety of habitats, particularly open areas. It regularly visits gardens to take nectar from the flowers.
Silver Y moths can produce two or three generations in a year with a fourth generation when conditions are particularly good. The eggs are laid on the upper or lower surface of leaves. They are whitish in colour and hemispherical in shape with deep ribbing. They hatch after three to four days (longer in cool conditions).
The larvae are about 30 mm long, have three pairs of prolegs and are usually green with whitish markings. They feed on a wide variety of low-growing plants and have been recorded on over 200 different species including crops such as the garden pea (Pisum sativum), sugar beet (Beta vulgaris) and cabbage (Brassica oleracea). They can reduce crop yields by damaging leaves and are often considered to be a pest.
The pupa is green at first, gradually darkening to black. The adults mate one or two days after emerging from the pupa and start laying eggs one to five days later. They die three to nineteen days after emergence.
Monday, 1 June 2020
1-6-2020 MONTE CORONA, VALENCIA - SMALL PURPLE BARRED MOTH (Phytometra viridaria)
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Phytometra viridaria, the small purple-barred, is a moth of the family Erebidae. The species was first described by Carl Alexander Clerck in 1759. It is found in central and southern Europe, Mauritania, Morocco, Algeria, Tunisia, Armenia, Iraq, Iran, Afghanistan, Pakistan, and further east across the Palearctic to southern Siberia.
The wingspan is 19–20 mm. The length of the forewings is 9–11 mm. Forewing olive brownish; the costa at base, and an outer and terminal fascia deep rosy purple; the outer band varying in width; a pale line of ground colour between them; hindwing olive with a median and terminal darker band more or less tinged with purple; in ab. fusca Tutt the purple tints are replaced by dark brown; —ab. aenea Hbn. the ground colour is olive grey or fuscous instead of green; ab. suffusa Tutt is a rare form, blackish fuscous with a still darker terminal border.
Sunday, 31 May 2020
31-5-2020 MONTE CORONA, VALENCIA - SMALL PURPLE BARRED MOTH (Phytometra viridaria)
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Phytometra viridaria, the small purple-barred, is a moth of the family Erebidae. The species was first described by Carl Alexander Clerck in 1759. It is found in central and southern Europe, Mauritania, Morocco, Algeria, Tunisia, Armenia, Iraq, Iran, Afghanistan, Pakistan, and further east across the Palearctic to southern Siberia.
The wingspan is 19–20 mm. The length of the forewings is 9–11 mm. Forewing olive brownish; the costa at base, and an outer and terminal fascia deep rosy purple; the outer band varying in width; a pale line of ground colour between them; hindwing olive with a median and terminal darker band more or less tinged with purple; in ab. fusca Tutt the purple tints are replaced by dark brown; —ab. aenea Hbn. the ground colour is olive grey or fuscous instead of green; ab. suffusa Tutt is a rare form, blackish fuscous with a still darker terminal border.
The moth flies from April to August depending on the location.
Larva green with darker pale-edged dorsal line; the other lines pale, the subspiracular becoming white on anal segments.
The larvae feed on Polygala vulgaris, Polygala serpyllifolia and Pedicularis sylvatica.
31-5-2020 POTRIES, VALENCIA - COMMON OLEANDER (Nerium oleander)
Nerium oleander commonly known as oleander or rosebay, is a shrub or small tree cultivated worldwide in temperate and subtropical areas as an ornamental and landscaping plant. It is the only species currently classified in the genus Nerium, belonging to subfamily Apocynoideae of the dogbane family Apocynaceae. It is so widely cultivated that no precise region of origin has been identified, though it is usually associated with the Mediterranean Basin.
Nerium grows to 2–6 metres (7–20 feet) tall. It is most commonly grown in its natural shrub form, but can be trained into a small tree with a single trunk. It is tolerant to both drought and inundation, but not to prolonged frost. White, pink or red five-lobed flowers grow in clusters year-round, peaking during the summer. The fruit is a long narrow pair of follicles, which splits open at maturity to release numerous downy seeds.
Nerium is a poisonous plant but its bitterness renders it unpalatable to humans and most animals, so poisoning cases are rare and the general risk for human mortality is low. Ingestion of larger amounts may cause nausea, vomiting, excess salivation, abdominal pain, bloody diarrhea and irregular heart rhythm. Prolonged contact with sap may cause skin irritation, eye inflammation and dermatitis.
31-5-2020 POTRIES, VALENCIA - EURASIAN BLACKBIRD (MALE) (Turdus merula)
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The Common Blackbird, Turdus merula, is a true thrush and a familiar sight in gardens and woodlands. The male is distinguished by its all-black plumage, bright yellow eye-ring, and orange-yellow bill, which darkens slightly during winter. Females and juveniles are more demure in their attire, sporting mainly dark brown feathers.
Adult males are entirely black with the exception of the yellow eye-ring and bill. Females are sooty-brown with a duller bill, and juveniles resemble females but have pale spots on their upperparts. The very young may also exhibit a speckled breast.
The Common Blackbird thrives in a variety of habitats including woodlands with dense undergrowth, gardens, parks, and hedgerows. It shows a preference for deciduous trees and areas with thick vegetation.
This species is widespread across Europe, western Asia, and North Africa. It has also been introduced to Australia and New Zealand. Its range varies from resident populations in the milder regions to partially or fully migratory populations in areas with more severe winters.
31-5-2020 POTRIES, VALENCIA - EUROPEAN TURTLE DOVE (Sternula albifrons)
The European turtle dove (Streptopelia turtur) is a member of the bird family Columbidae, the doves and pigeons. It breeds over a wide area of the south western Palearctic including north Africa but migrates to northern sub-Saharan Africa to winter.
Smaller and slighter in build than many other doves, it measures 26–28 cm (10–11 in) in length, 47–53 cm (19–21 in) in wingspan and weighs 100–156 g (3.5–5.5 oz).[11] The European turtle dove may be recognised by its browner colour, and the black-and-white-striped patch on the side of its neck. The tail is notable as the bird flies from the observer; it is wedge shaped, with a dark centre and white borders and tips. When viewed from below, this pattern, owing to the white under-tail coverts obscuring the dark bases, is a blackish chevron on a white ground. This can be seen when the bird stoops to drink and raises its spread tail.
The mature bird has the head, neck, flanks, and rump blue grey, and the wings cinnamon, mottled with black. The breast is vinaceous, the abdomen and under tail coverts are white. The bill is black, the legs and eye rims are red. The black and white patch on the side of the neck is absent in the browner and duller juvenile bird, which also has the legs brown.
The turtle dove is a migratory species with a western Palearctic range covering most of Europe and the Middle East and including Turkey and north Africa, although it is rare in northern Scandinavia and Russia. It winters south of the Sahara.
The turtle dove, one of the latest migrants, rarely appears in Northern Europe before the end of April, returning south again in September.
31-5-2020 POTRIES, VALENCIA - LULWORTH SKIPPER BUTTERFLY (Thymelicus acteon)
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The Lulworth skipper (Thymelicus acteon) is a butterfly of the family Hesperiidae. Its name is derived from Lulworth Cove in the county of Dorset, England, where the first specimens in Great Britain were collected in 1832 by English naturalist James Charles Dale.
The species occurs locally across Central Europe, Asia Minor and North Africa, where its population is considered stable. Its numbers have declined in Northern Europe, leading to its European status of "vulnerable". Its range in Britain is restricted to the south coast of Dorset, however it is locally abundant and its numbers currently are perhaps at their greatest since its discovery there.
With a wingspan of 24 to 28 millimetres, females being larger than males, the Lulworth skipper is a small butterfly, the smallest member of the genus Thymelicus in Europe and among the smallest butterflies in Britain. Aside from the size difference, the sexes are distinguished by females having a distinct circle of golden marks on each forewing. Due to their likeness to the rays around the eye of a peacock's feather, these are often known as "sun-ray" markings, and they can faintly appear on males.
Saturday, 30 May 2020
29-5-2020 GANDIA MARJAL, VALENCIA - MALLARD (MALE) (Anas platyrhynchos)
The Mallard, or wild duck (Anas platyrhynchos), is a familiar and widespread dabbling duck with a presence across temperate and subtropical regions of the Americas, Eurasia, and North Africa. It has also been introduced to parts of the Southern Hemisphere. The male is renowned for its iridescent green head and white collar, while the female sports a brown-speckled plumage. Both sexes boast a speculum—a patch of feathers with iridescent purple or blue hues bordered by white. The Mallard's length ranges from 50 to 65 cm, with a wingspan of 81 to 98 cm, and it typically weighs between 0.7 and 1.6 kg.
Males during the breeding season are unmistakable with their glossy green heads, white collars, and purple-tinged brown breasts. Females are mottled brown with buff cheeks and an eye-stripe. Both sexes have the distinctive speculum on their wings. The male's bill is yellowish-orange tipped with black, while the female's is darker, ranging from black to mottled orange and brown.
Mallards are found in a variety of wetlands, including parks, small ponds, rivers, lakes, and estuaries. They prefer water depths less than 0.9 meters and are drawn to areas with aquatic vegetation.
This species is distributed across the Northern and Southern Hemispheres, from Alaska to Mexico, the Hawaiian Islands, across the Palearctic, and down to southeastern and southwestern Australia and New Zealand.
Mallards are social birds that often form large flocks outside the breeding season. They are adaptable and can thrive in urban areas. The species is migratory in the northern parts of its range.
The female Mallard is known for its quintessential "quack," while the male's call is a quieter and deeper version of the female's. Vocalizations can vary by region, with urban ducks being louder than their rural counterparts.
Breeding pairs form in the fall, with the female laying 8 to 13 creamy white to greenish-buff eggs. Incubation lasts 27 to 28 days, and ducklings are precocial, swimming immediately after hatching.
Mallards are omnivorous, feeding on a variety of foods including seeds, plant matter, insects, crustaceans, and small animals. Their diet varies with the season and breeding cycle.
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