Sorhagenia rhamniella

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Sorhagenia rhamniella
Sorhagenia rhamniella

Sorhagenia rhamniella

Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Chrysopeleiidae
Genre : Sorhagenia
Type : Sorhagenia rhamniella
Scientific name
Sorhagenia rhamniella
( Zeller , 1839)

Sorhagenia rhamniella is a butterfly ( moth ) fromthe Chrysopeleiidae family .

features

The moths reach a wingspan of 9 to 11 millimeters. The head is speckled brownish gray and light gray. The thorax is brownish gray and has two tufts of scales on the rear side . The forewings are brownish gray and dark gray-brown immediately at the base. There are four dark brown tufts of scales, the first is between the anal fold and the inner wing edge at 1/4 of the fore wing length. The second is the largest and lies above the anal fold in the middle of the wing. The scales here are partly gray or have gray tips. The third tuft lies between the anal fold and the inner edge of the wing, slightly outside the middle of the wing. The fourth tuft is above the interior angle at 3/4 of the fore wing length. At 3/4 of the forewing length there is an ocher-brown, indistinct, knee-shaped band. A large, indistinct light gray patch extends from the first third of the forewing to the second and third tufts of scales. It doesn't reach the Costa loader . The apex is provided with a number of small, dark brown tufts of scales. The hind wings are dark gray.

In the males the uncus is short and blunt at the apex. The valves , including the cucullus and the ampulla, are of equal length. The ampulla is club-shaped, the sacculus tapers distally and is significantly longer than the cucullus and ampulla. The costa is provided with a square and heavily sclerotized process. The juxta is trapezoidal, the vinculum is square. The aedeagus is short and has a thickened cecum penis that gradually tapers distally.

In females, the distal edge of the ostium is curved. The lateral protrusions of the genital plate are narrow at the base and widen greatly distally. They are provided with a ridge at the widest point. The antrum widens slightly towards the ductus bursae . The ductus bursae is parallel-walled and more than twice as long as the antrum. The corpus bursae is round, the signa have a strong thorn in the middle.

The caterpillars are whitish, the head and neck shield are brownish. There is a gray, translucent spot on the mesonotum and epinotum.

Similar species

Similar species are Sorhagenia reconditella , Sorhagenia lophyrella , Sorhagenia janiszewskae , Sorhagenia fibigeri and Sorhagenia taurensis . The distinguishing features of these species to Sorhagenia rhamaniella are dealt with in the respective articles.

distribution

Sorhagenia rhamniella is common in Europe, Asia Minor and Central Asia.

biology

The caterpillars develop on buckthorn ( Frangula alnus ), Purgier buckthorn ( Rhamnus cathartica ) and Alpine buckthorn ( Rhamnus alpina ). They live from the beginning of May to June in a loose web between the flowers and feed on the flowers and seed pods. Young leaves are also eaten less often. Schütze also found the caterpillars on young shoots and spun leaves. The caterpillars pupate in a light yellow cocoon on rubble, rarely between leaves. The species forms one generation a year. The moths fly from mid-April to mid-August.

Systematics

The following synonyms are known:

  • Elachista rhamniella Zeller , 1839
  • Anacampsis asperipunctella Bruand , 1851
  • Blastodacna rhamniella

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. 173 (English).
  2. ^ Hans Malicky (1966): Preliminary communication on the biology and distribution of Sorhagenia SPULER (Lep., Momphidae) Entomologisches Nachrichtenblatt 13: pp. 37-42
  3. ^ A b Sorhagenia rhamniella at Fauna Europaea. Retrieved March 23, 2012
  4. ↑ 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. 136

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