Evergestis serratalis

Evergestis serratalis

Evergestis serratalis is a butterfly of the family of Crambiden ( Crambidae ).

Features

The moths reach a wingspan of 27-33 millimeters. The forewings have a bright earth-brown color with fine dark brown mixing. The root field margins very oblique white and contains within the cell stains, which consist of black scales. The Ante median line is white, thin and strong tooth-shaped bulges in the cell. It runs very obliquely to inner wing edge. The black Postmedia line runs parallel to the wing outer edge. It is slightly wavy and wide margins on both sides white. A row of black, arrow-shaped spots located in the middle Saumfeld in the core spaces. The hem line is black and very thin. The midfield is extended scaly black, the main veins are white. The fringe scales are gray-brown, with the basal half is darker. In the spaces between the wire ends are white strokes. The hind wings are dirty white tops and have a dark outer shadow. The white Postmedia line and the thin, black hem line are curved and only slightly marked. The fringe scales are light gray, the basal half is darker. The underwings are dark gray and white on the fore wings and in the outer half of the hind wings. The Diskalfleck on the fore wings are black. The females are slightly smaller and more compact than the males.

In the males, the Uncusschaft is parallel walls and pretty hairy. The apex is rounded. The Gnathos has a blunt tip, where there are six short, irregularly shaped teeth. The Valven taper sharply, the Costa is thickened and the apex rounded. The inner surface is very hairy, a clamp member ( clasper ) is not clearly developed. In the distal part of the phallus, there are two adjacent groups of strong, curved Cornuti and a pair of large, scaly ridges.

In females, the corpus bursae is ovate and scarcely wider than the basal part of the ductus. The signals are broad. The ductus bursae is very wide and tapers towards the throat just before the Colliculum.

Similar Species

Through the white highlighted veins and the wide white -rimmed Postmedia line on the forewing upper side of the species is unmistakable.

Dissemination

Evergestis serratalis occurs on the Balkan Peninsula and the Crimea.

Biology

The preimaginal stages are unknown. The moths fly in September between shrubs and in open deciduous forests. They are nocturnal and like to come to light.

System

From the literature the following synonym is known:

  • Botys serratalis Staudinger, 1870

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