Blastodacna rossica
| Blastodacna rossica | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Blastodacna rossica | ||||||||||||
| Sinev , 1989 |
Blastodacna rossica is a butterfly ( moth ) fromthe grass leaf miner family (Elchistidae).
features
The moths reach a wingspan of 9 to 13 millimeters. The forewings are drawn dark black and white and strongly mixed with black and brown. There is an indistinct orange-brown line in the costal fold. The inner edge of the wing is mixed dirty white and dark.
In the males, the gnathos has two long thin arms, each ending in a small spiky bump. The anellus lobes are moderately curved and tapered to a point. There is a small but clearly formed tooth on the ventral edge. The Aedeagus does not have a pronounced blunt keel. The vesica has 3 to 4 groups of spines, one of which is 3 to 4 times longer than the others. The genital armature of the males resembles those of Blastodacna atra and Blastodacna hellerella , from these B. rossica can essentially be distinguished by the downwardly curved anellus lobes with the very pointed apex.
The genitals of the females differ from the similar species Blastodacna atra and Blastodacna hellerella by the large, round genital plate, the 4 crossed ridges on each side of the ostium, the granular sclerosis on most of the surface of the corpus bursae and the adjacent ductus bursae and the lanceolate signum.
Similar species
B. rossica is similar to Blastodacna atra and Blastodacna hellerella , but differs from these two species in the black-brown thorax and the darker inner edge of the forewings.
distribution
Blastodacna rossica is native to the Crimea , the western part of the Transcaucasus, and Central Asia .
biology
The caterpillars develop on apple trees ( Malus ) and probably also on pears ( Pyrus communis ). From the second half of summer to autumn, they drill a 40 millimeter long passage into the young branches. The infestation can be determined by looking at the brown caterpillar droppings that can be found around the borehole on the branch. The fully developed caterpillars overwinter and pupate in the coming spring. The species forms one generation per year, the moths fly in Europe from late May to August and in Central Asia from April to May.
swell
Individual evidence
- ↑ a b c d 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. 73 (English).
Web links
- Blastodacna rossica at Fauna Europaea. Retrieved September 5, 2011