Ascalenia vanella

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Ascalenia vanella
Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Chrysopeleiidae
Genre : Ascalenia
Type : Ascalenia vanella
Scientific name
Ascalenia vanella
( Frey , 1860)

Ascalenia vanella is a butterfly ( moth ) fromthe Chrysopeleiidae family .

features

The moths reach a wingspan of 7 to 10 millimeters. The head, thorax and tegulae shine gray-brown, the tips of the scales are lighter here. The antennae are gray-brown. The forewings are gray-brown and more or less speckled with light gray scales at the tip. These scales also form two very indistinct and irregular bands located at 1/3 and 2/3 of the fore wing length. The outer band runs slightly outwards at an angle. At 1/3 of the fore wing length there is a dark oval spot on the anal fold. A similar but smaller spot is in the middle of the wing on the inner edge of the outer band. The fringed scales are gray-brown at the apex , they become paler towards the inner edge of the wing. The hind wings have a light gray sheen, they are more brownish on the Costa loader and the apex. The abdomen shines gray-brown, the anus tuft is white.

In the males, the uncus is rather short, narrow and curved downwards. The blades are slim and almost parallel-walled. They have a rounded apex. On the inner surface there are rows of coarse bristles, hair-like bristles and a very long and curved bristle can be found in the basal half of the outer surface. The aedeagus is almost straight and tapers slightly distally .

In females, the slit-shaped bulge of the seventh sternite is small and narrow U-shaped. The fold of the sixth sternite is obtuse triangular. The lateral shields are trapezoidal and sclerotized on the ostium. They have a net-like structure on the rear edges that is connected on both sides with a net-like patch on the inside of the fold. The ductus bursae runs in two turns and has a narrow, sclerotized longitudinal ligament. The corpus bursae is oval and has two large funnel-shaped signs with a curved tip.

The caterpillars are orange-yellow.

Similar species

Ascalenia vanella habitually resembles Ascalenia vanelloides and Ascalenia echidnias ; a genital examination is necessary to reliably identify the species .

distribution

Ascalenia vanella is common in central and southern Europe. The species is also found in the Canary Islands , Asia Minor and the Caucasus . She lives on the banks of large rivers.

biology

The caterpillars develop on the German tamarisk ( Myricaria germanica ) and on various Tamarix species. They bore in the seed pods or in the branches. The species forms two generations a year. The moths fly from June to July and from September to October. The second generation overwinters and flies again in early spring.

Systematics

The following synonyms are known:

  • Laverna vanella Frey , 1860
  • Lauerna seeboldiella Ragonot , 1882

supporting documents

  1. ↑ a b c d e f g J. C. Koster, S. Yu. Sinev: Momphidae, Batrachedridae, Stathmopodidae, Agonoxenidae, Cosmopterigidae, Chrysopeleiidae . In: P. Huemer, O. Karsholt, L. Lyneborg (eds.): Microlepidoptera of Europe . 1st edition. tape 5 . Apollo Books, Stenstrup 2003, ISBN 87-88757-66-8 , pp. 177 (English).
  2. ↑ Karl Traugott Schütze: The biology of the small butterflies with special consideration of their nutrient plants and times of appearance. Handbook of Microlepidoptera. Caterpillar calendar arranged according to the illustrated German Flora by H. Wagner. Frankfurt am Main, publishing house of the International Entomological Association e. V., 1931, p. 140
  3. ^ Ascalenia vanella in Fauna Europaea. Retrieved March 27, 2012

Web links