Evergestis desertalis
Evergestis desertalis
Evergestis desertalis is a butterfly of the family of Crambiden ( Crambidae ).
Features
The moths reach a wingspan of 26-30 millimeters. Head, labial palps and Patagia ( paired structure on the pronotum that covers the base of the front wings ) are also colored like the thorax. The forewings have a whitish, faded, leather brown coloration. The Ante median line has a strong tooth in the cell, then it runs very obliquely to the inner edge of wing. The Postmedia line is slightly curved. It begins near the apex and extending obliquely to the inner edge of wing. It is black and pale shaded back to base. The Subterminallinie consists of an interrupted series of black spots. The hem line is very thin and black. The fringe scales are whitish and are divided by two dark lines. The hind wings are gray and darker towards the outer wing margin. The dark Postmedia line is incomplete, the hem line is thin and black. The fringe scales are divided by a dark line. The basal half leather brown, the distal half is white. The hind wings are dark gray undersides and along the veins. The Postmedia line is indicated on all dark underwings.
In the male the uncus is parallel walls and towards the tip slightly thicker. It is equipped with a few long, stiff bristles. The Gnathos tapering cylindrical and has a range of about twelve small, flat teeth. The Valven have a broad base and tapering to a rounded apex obliquely. The clamp member ( Clasper ) has the form of a conspicuous sclerotic lenticular bar. On this rod and directly next to it are stiff, hair -like bristles. The phallus is strong, on the distal part there are two unequal Cornuti groups and a pair of brush-like areas.
In females, the corpus bursae is almost ovoid and deposed from the base of the ductus bursae. The signals are medium in size. The ductus bursae is moderately wide and slightly tapered. Before Colliculum is a lateral protuberance.
Similar Species
The similar kind Evergestis dusmeti has drawn a similar appearance, but is browner and less clear. Head, labial palps and Patagia are whitish. The wings are slightly wider and have a more rounded apex. The Ante median line is nearly straight. Other similar species are Evergestis plumbofascialis and Evergestis aegypticalis.
Dissemination
Evergestis desertalis is represented in the Canary Islands, in Spain, Sicily, Malta, Romania, Bulgaria and North Africa. Further east, the distribution area also includes the European part of Russia, the Ukraine, the Arabian Peninsula and Iran.
Biology
The preimaginal stages are unknown. It makes two or more generations per year and settled stony semi-desert. The moths fly from May to October come to light.
System
From the literature, the following synonyms are known:
- Pyralis desertalis Hübner, 1813
- Botys uandalusialis Herrich -Schäffer, 1851
- Noctuelia avicennae Tams, 1925