Eteobalea tririvella
Eteobalea tririvella is a butterfly (moth ) from the family of the splendor butterfly ( Cosmopterigidae ).
Features
The moths reach a wingspan of 11-15 millimeters. The head is yellowish white and dark brown on the sides. The sensors are in the first third dark brown, the middle part is ringed yellowish white and the last third is yellowish white. The thorax shining dark brown and has a white spot behind. The fore wings are blackish brown and marked with three silver napkins and a small white spot. The first binding starts at 1/ 6 of the forewing length. It runs obliquely outwards and reaches just above the anal fold out. The second binding is located in front of the wing center and perpendicular to the Costa loader or slightly obliquely outwards. It extends to the anal cleft. The third binding starts at 3/4 of the front wing length on the Costa loader and runs obliquely inward to the anal cleft. Where it is bent outward and extends to the inner edge of wing. At the apex there is a silvery spot. The hind wings shining gray. The abdomen is gray-brown and gray on the sides. The after tuft yellowish white.
In the males, the Tegumen is parallel walls and the back has a V-shaped bulge. The right brachium is bent and about two and a half times as long as the left. Apical it is widened. The left brachium is rounded at the tip. The Valven are pear-shaped. The right Valvella is parallel-walled and has a rounded apex with a small, strongly sclerotized, hook-shaped tip. A small, strongly sclerotized spot is located on the tubular part of the aedeagus opposite the hook-shaped tip. The aedeagus is slender, slightly curved and tapering to a sharp point.
In females, the 8th segment is narrow and twice as long as wide. The ostium is semicircular. The sterigma is vase-shaped, narrowing distally. The ductus bursae is abundant half as long as the corpus bursae. The corpus bursae is elongate and has no signals.
Similar Species
Eteobalea tririvella differs in the Western Palearctic from all other species of the genus Eteobalea by the silvery bars on the forewings. These bandages are usually not interrupted.
Subspecies
The subspecies E. t. bernhardi ella, which was described from Austria is divided, the second and third tie in the middle.
Dissemination
Eteobalea tririvella is native to Central and Eastern Europe and in the south Fennoscandian. In the east, the range extends to the south of Siberia and Mongolia.
Biology
The biology of the species is unknown. It is assumed that the track to develop thymic species, at least the presence of thyme species is a common feature of the European localities. The moths fly from mid-June to late August.
System
There are known the following synonyms:
- Stagmatophora tririvella Staudinger, 1871
- Stagmatophora kasyi Riedl, 1965
From Austria a subspecies is known:
- Eteobalea tririvella bernhardi ella Kasy, 1973