Cosmopterix scribaiella

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Cosmopterix scribaiella
Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Magnificent butterfly (Cosmopterigidae)
Subfamily : Cosmopteriginae
Genre : Cosmopterix
Type : Cosmopterix scribaiella
Scientific name
Cosmopterix scribaiella
Zeller , 1850

Cosmopterix scribaiella is a butterfly ( moth ) from the family of cosmopterigidae (Cosmopterigidae).

features

The moths reach a wingspan of 10 to 11 millimeters. The head shines brown and has a white central and two white side lines. The antennae are brown and have a white line that extends from the front edge of the antenna base to the center. In the subapical area there are two white sections, the inner one consists of three segments, the outer one of two segments. The two white sections are separated by a section consisting of two brown segments. The tip of the antenna consists of five white segments. The thorax is brown and has a white center line. The tegulae are brown and have a white line on the inner edge. The forewings are dark brown. There are four narrow, white lines in the basal region . A slightly inwardly curved subcostal line runs from the wing base to over the wing half. A short center line is above the anal fold. The subdorsal line is as long as the midline or a little shorter and is a little further away from the base of the wing. A short dorsal line is in the first fifth of the wing inner edge. A wide orange band runs behind the middle of the wing, it tapers towards the inner edge of the wing and is thinly extended in the middle towards the apex . The inside is bordered by a sloping, bumpy, pale gold band that runs diagonally inwards, but does not extend to the Costalader . Two knotty, pale golden spots border the outside. The dorsal spot is about twice as large as the costal spot. A small subcostal spot or line made up of black scales is on the outside of the pale gold band. The pale gold spots have an irregular black border on the inside. A white costal stain lies above the pale gold costal stain. A white apical line runs in line with the thin extension of the orange band. The fringed scales are brown. The hind wings are gray-brown.

The right brachium is strong in the males . It is triangular in shape and has a sharp, protruding apex. It is very badly sclerotized and more than twice as long as the left arm. The blades are rounded and narrow at the base. The upper and lower edges are slightly concave , the caudal edge is convex . The Valvellae are long, slightly curved in the middle and almost parallel-walled. They taper apically to a blunt point. The aedeagus is cylindrical and narrows apically. It is laterally curved, the posterior part widens distally and has a small ventral flange.

In the females, the rear end of the 7th sternite is trapezoidal. The 8th segment is longer than it is wide. The ostium is rounded and has sickle-shaped sclerotization. The sterigma is oval and has a long sclerotized process distally. The ductus bursae is slightly shorter than the corpus bursae and has two sclerotized ridges distally. The corpus bursae is oval and provided with two small, equally large and sickle-shaped signs.

Similar species

Cosmopterix scribaiella differs from Cosmopterix attenuatella and Cosmopterix crassicervicella by the uninterrupted white line on the antennae, the short white dorsalline that does not reach the base of the fore wing and the dark brown abdomen. The differences to Cosmopterix pulchrimella are described in the article on this species.

distribution

Cosmopterix scribaiella is native to northern and central Europe as well as North Africa , Asia Minor and Central Asia . In the Russian Far East and Japan the nominate form is derived from the subspecies C. s. japonica ( Kuroku , 1960). According to Fauna Europaea, the species is widespread in Europe. In England the species was found in Dorset in 1996 and in Hampshire a year later .

biology

The caterpillars develop on reeds ( Phragmites australis ), where they mine in the leaves from August to autumn. They overwinter in the mine until April. The mine begins as a straight feeding tunnel and then widens irregularly. The mine is similar to that of Cosmopteryx lienigiella . The caterpillar droppings are deposited at the start of the mine and sometimes also ejected. The caterpillars make a tubular web at the lowest part of the mine in which they hide. There is usually only one lead in a leaf, but sometimes up to ten leads can be found. When viewed from a distance, the infected plant then has a wilted habit . The caterpillars pupate in May in a solid cocoon at the lowest point of the mine . The moths fly from early June to late October. During the day they can easily be nested from the food plants. The moths like to come to light .

Systematics

The following synonyms are known:

  • Cosmopteryx scribaiella Zeller , 1850
  • Cosmopteryx hermsiella E. Hering , 1889

There are two known subspecies:

  • Cosmopterix scribaiella scribaiella Zeller , 1850
  • Cosmopterix scribaiella japonica Kuroku , 1960

supporting documents

  1. ↑ a b c d e f 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. 114 (English).
  2. ↑ a b Cosmopterix scribaiella at Fauna Europaea. Retrieved January 6, 2012
  3. ↑ 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. Verlag des Internationale Entomologische Verein e. V., Frankfurt am Main 1931, p. 21

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