Evergestis caesialis

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Evergestis caesialis
Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Crambidae
Subfamily : Glaphyriinae
Genre : Evergestis
Type : Evergestis caesialis
Scientific name
Evergestis caesialis
( Herrich-Schäffer , 1849)

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

features

The moths reach a wingspan of 19 to 24 millimeters. The head and body are light gray ocher. The abdomen is weakly banded. The forewings are whitish with a complex mottling of rather coarse brownish yellow scales that are grayer in the subterminal region. The mottling forms a more or less distinct subbasal line, a clearer, curved and serrated antemedian and an S-shaped postmedian line. The subterminal area is speckled with dark. The discal spot is kidney-shaped and paler in the center. The hemline consists of dark, narrow crescent moons. The fringed scales are dirty white. The first third is ocher-colored and has a narrow white basal line. The hind wings are paler than the forewings and have a pale discal blotch, a darker subterminal shadow, a faint dark post-median line, and a thin, dark hemline. The subspecies Evergestis caesialis comealis , which occurs in Iran , differs from the nominotypical subspecies in that it has a striking clay color. The subspecies Evergestis caesialis mellealis from Morocco differs from the nominotypical subspecies by the lighter, olive-brown to honey-yellow color of the wings and body and the speckling with wood-brown scales. The antemedian line is less dentate. The post-median line is clearly visible on the hind wing only at the anal angle and the entire wing is more evenly speckled. The fringed scales are honey yellow.

In the males, the uncus is quite strong and slightly hairy. It tapers and has a blunt tip. The Gnathos is as wide as the Uncus and tapers. At the top is a dense cluster of irregular, backward-facing teeth. The valves are slightly hairy and parallelogram-shaped. The distal corners are hardly rounded and the clasper is missing. The aedeagus is strong and has a roughened tip. On the distal part are two long, dense areas of cornuti and a pair of brush-like pillows.

In females, the corpus bursae is almost spherical and has long, slender signs. The ductus bursae is quite wide, it tapers slightly at the junction with the corpus bursae. It does not expand in front of the colliculum .

Similar species

E. caesialis is smaller than the similar species Evergestis sophialis . There is a risk of confusion with Evergestis infirmalis . This species has narrower wings and a larger, darker discal patch. With the exception of the pale undulating post-median line, the transverse lines are less clear and somewhat more serrated. The fringes are more clearly piebald because the tips of the wing veins are pale. The underside of the wing is more clearly drawn, with the large discal patch being the most noticeable.

distribution

Evergestis caesialis is native to Italy and south-eastern Europe. The species is also found in Morocco , Syria , Afghanistan and Iran .

biology

The pre-imaginal stages are unknown. In Europe the moths fly in August and in Morocco from mid-June to the end of July. They are nocturnal and come to light .

Systematics

The following subspecies are known:

  • Evergestis caesialis caesialis ( Herrich-Schäffer , 1849)
  • Evergestis caesialis comealis blackbird , 1961
  • Evergestis caesialis mellealis Zerny , 1936

The following synonyms are known from the literature :

  • Botys caesialis Herrich-Schäffer , 1849
  • Botys saxicolalis man , 1862
  • Evergestis caesialis mellealis Zerny , 1935
  • Evergestis caesialis comealis blackbird , 1961

supporting documents

  1. ↑ a b c d e f g Barry Goater, Matthias Nuss, Wolfgang Speidel: Pyraloidea I (Crambidae, Acentropinae, Evergestinae, Heliothelinae, Schoenobiinae, Scopariinae) . In: P. Huemer, O. Karsholt, L. Lyneborg (eds.): Microlepidoptera of Europe . 1st edition. tape 4 . Apollo Books, Stenstrup 2005, ISBN 87-88757-33-1 , pp. 73 (English).
  2. ↑ Herrich-Schäffer, GAW (1849): Systematic processing of the butterflies of Europe, at the same time as text, revision and supplement to Jakob Hübner's collection of European butterflies. Fourth volume. The moth and winder. P. 115
  3. ↑ Patrice Leraut: Zygaenids, Pyralids 1 . In: Moths of Europe . 1st edition. Volume III. NAP Editions, 2012, ISBN 978-2-913688-15-5 , pp. 186 (English).
  4. ↑ a b Evergestis caesialis in Fauna Europaea. Retrieved February 7, 2013
  5. ↑ Global Information System on Pyraloidea (GlobIZ). Retrieved February 7, 2013 .

Web links