Eteobalea tririvella

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Eteobalea tririvella
Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Magnificent butterfly (Cosmopterigidae)
Subfamily : Cosmopteriginae
Genre : Eteobalea
Type : Eteobalea tririvella
Scientific name
Eteobalea tririvella
( Staudinger , 1871)

Eteobalea tririvella is a butterfly ( moth ) from the family of cosmopterigidae (Cosmopterigidae).

features

The moths reach a wingspan of 11 to 15 millimeters. The head is yellowish white and dark brown on the sides. The antennae are dark brown in the first third, the middle part is ringed yellowish white and the last third is yellowish white. The thorax has a dark brown sheen and a white spot on the back. The forewings are blackish brown and marked with three silvery bands and a small white spot. The first band begins at 1/6 of the forewing length. It runs diagonally outwards and extends just beyond the anal fold. The second band is in front of the middle of the wing and runs at right angles to the Costalader or slightly obliquely outwards. It extends to the anal fold. The third band begins at 3/4 of the forewing length on the Costa Lader and runs diagonally inwards to the anal fold. There it is bent outwards and extends to the inner edge of the wing. There is a silvery spot at the apex . The hind wings shine gray. The abdomen is gray-brown and gray on the sides. The anal tuft is yellowish white.

In males, the tegumen is parallel- walled and has a V-shaped bulge at the back. The right brachium is curved and about two and a half times as long as the left. It is widened apically. The left brachium is rounded at the tip. The blades are pear-shaped. The right valvella is parallel-walled and has a rounded apex with a small, heavily sclerotized , hook-shaped tip. A small, heavily sclerotized spot is on the tubular part of the aedeagus opposite the hooked tip. The aedeagus is slender, slightly curved, and tapers to a sharp point.

In females, the 8th segment is narrow and twice as long as it is wide. The ostium is semicircular. The sterigma is vase-shaped and narrows distally . The ductus bursae is half as long as the corpus bursae . The corpus bursae is elongated and has no sign.

Similar species

Eteobalea tririvella differs in the Western Palearctic from all other species of the genus Eteobalea by the silvery bands on the front wings. These bandages are usually not broken.

Subspecies

In the subspecies E. t. bernhardiella , which was described from Austria, the second and third band is divided in the middle.

distribution

Eteobalea tririvella is native to Central and Eastern Europe and southern Fennoscandia . In the east the distribution area extends to the south of Siberia and Mongolia .

biology

The biology of the species is unknown. It is believed that the caterpillars develop on thymus species, at least the presence of thyme species is a common feature of European localities. The moths fly from mid-June to late August.

Systematics

The following synonyms are known:

  • Stagmatophora tririvella Staudinger , 1871
  • Stagmatophora kasyi Riedl , 1965

One subspecies is known from Austria:

  • Eteobalea tririvella bernhardiella Kasy , 1973

supporting documents

  1. ↑ a b c d e f g h i 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. 144 (English).
  2. ↑ a b Friedrich Kasy (1973): An interesting Stagmatophora sl from the World Wildlife Fund - “Marchauen, Marchegg” nature reserve, Lower Austria (Lepidoptera, Cosmopterigidae). Annals of the Natural History Museum Vienna 77: Pages 275–282.
  3. ↑ Bengt Å. Bengtson (2002): Eteobalea tririvella trestreckad silvermal . online (PDF; 123 kB)
  4. ↑ Eteobalea tririvella in Fauna Europaea. Retrieved February 21, 2012

Web links