Top 20 Most Common Insects in Sylva

Forewing whitish ochreous, irrorated with pale or dark grey, sometimes with a yellow tinge; inner and outer lines blackish, dentate, double; median and subterminal lines blackish, dentate; reniform stigma with black centre and outline; beneath it a pale yellowish diamond-shaped spot outlined with moerens. dark; hindwing blackish, with a broad blue postmedian band. — ab. moerens Fuchs has the forewing more or less strongly suffused throughout with blackish grey, obscuring the markings; — the form gaudens Stgr. on the other hand, from Central Asia, is very pale, with most of the black scaling obsolete; in the ab. contigua Schultz the pale spot below the reniform stigma is elongated outwards to touch the outer line, often, as well as the outer line itself, strongly yellow-tinged, especially noticeable in examples with the ground colour dark; -angustata Schultz is distinguished by the narrowness of the blue band of the hindwing; — the ab. maculata Kusenov shows a white mark at the lower angle of cell of hindwing. Schultz also records an instance of albinism in the forewings, where the grey scales throughout have become white, and the black lines brownish yellow, the hindwings remaining unaltered.

The wingspan is 46–50 mm. The forewing ground colour is usually grey brown. The same coloured midfield is bordered by blackish crossbars that are often partly white. At the wing edge below the apex are two characteristic, protruding teeth. The scientific name of the species is derived from the Latin language bi = "twice" and dentatus = "toothed". The outer dark crossline of the forewings continues on the hindwings. All wings have a ring-shaped dark discal spots. The thorax is hairy. This is a very variable species with the wing colour ranging from whitish through buff and brown to black, sometimes with variegation, but it is always easily identifiable by the white discal spot on each wing and the characteristic "ragged" margin of the wings.Last instar caterpillars have a brownish colouration. However, other colour variations may also occur. Characteristic are two small humps on the penultimate segment as well as two dark, capsule-like protrusions on the head. The adults fly at night in May and June and are attracted to light. The caterpillar is green or brown and twig like, and feeds on a variety of plants (see list below). The species overwinters as a pupa. ^ The flight season refers to the British Isles. This may vary in other parts of the range.

With its bright white and black-spotted wings, the white ermine moth perhaps gets its name from the small mammals called ermines, which turn a vibrant white in the winter. This lovely insect is a delight to spot in the wild and can be found in many habitats all around the world.

Wingspan of about 4.5 cm. Wings ample; the forewing angled in middle of termen, concave between the angle and the acute apex. Forewing grey mixed with ochreous, with fuscous striae, posteriorly with a rosy tinge: the veins terminally whitish; an irregular median suffusion reaching from base to middle, orange red more or less mixed with yellow; inner and outer lines pale with dark edges; a white spot at base on median vein; a white dot represents the orbicular stigma; reniform formed of two black dots; hindwing fuscous, paler at base.

Electrophaes corylata, the broken-barred carpet, is a moth of the family Geometridae. The species was first described by Carl Peter Thunberg in 1792. The distribution area ranges from Spain over western and central Europe and through the East Palearctic to Japan. In the north the expansion extends to Fennoscandia, in the south to Italy and the Balkans. It is absent in Portugal and Greece. Beech, birch, bog, and mixed bushy forest edges, orchards and semi-dry grasslands are preferred. The wingspan is 22–30 mm. The ground colour of the front wings is variously dark brown, white and reddish brown. Olive colours prevail in some specimens. The median band is narrowed and can be sometimes interrupted. The outer cross line limited the midfield is much serrated. The margin field is obscured and is crossed by a strongly toothed white wavy line. There is a bright spot at the apex. The hind wings shimmer grey and have a dark cross line and a central spot. The moths fly in one generation from May to June.. The larvae feed on a wide range of trees and bushes.

The wingspan is 3 - 3.5 cm. Ground-colour whitish grey, in freshly emerged specimens with a very delicate green tinge; the markings somewhat darker brownish grey, but generally quite weakly expressed. Hindwing whitish, greyer distally, sometimes with one or two fairly well-defined grey lines not far from the distal margin, Male narrower-winged than female.

The white plume moth is a distinctive insect with a wingspan of 26 to 34 mm (1.0 to 1.3 in). The adult is pure white, the wings being divided into five slender feather-like plumes, two forming part of the forewing and three part of the hind wing. The insect is nocturnal, emerging at dusk, and is on the wing during June and July. The larvae are green, with a yellow dorsal stripe and tufts of pale hairs.

The four-spot (Libellula quadrimaculata) is one of the large dragonflies and reaches a body length of 4 to 4.5 centimeters with wingspan between 7 and 8.5 centimeters. Each of the four wings has a striking dark spot in the area of the distinctive transverse vein (nodus), after which the species received both its scientific and its trivial name. This dragonfly is also known for its mass migrations in swarms of impressive dimensions. The entire stock is not considered to be threatened.

The abdomens of both sexes are bulbous and brownish in coloration, typically with a broken pale line down the center and another pale line across the anterior portion of the abdomen. The apodemes (places of muscle attachment) on the dorsal side of the abdomen look like pairs of dark dimples and presumably give the spider its Latin name bi- (two) and -punctata (spots). The underside of the abdomen of the Rabbit Hutch Spider reveals a most interesting pattern resembling the infinity sign. The female abdomen is light brown and often shiny compared to the males. Steatoda bipunctata rarely exceeds 7 mm in body length and there are no known instances of envenomation.

It is a fairly large dragonfly (the length of 4.5 - 5 cm, 3 - 3.5 cm abdomen, rear wing 3.5 - 4 cm.) with relatively broad, flattened abdomen, but not as broad as to chaser species. With age, adult males develop extensive blue pruinescence on their abdomen, offset by yellow lateral patches. The middle lobe of the pronotum is large and notched in the middle. The chest is yellow or yellowish-brown. The base of the hind wings do not show a dark opaque spots. The pterostigma is dark brown or black. On the front wings pterostigma 2 - 3 mm long. Anal appendages are black. The females and immature males are a deep yellow color, with wavy black lines dorsally on their abdomen. Males and females have the costal vein (the leading edge of the wing) yellow or black.