Blastodacna libanotica
Blastodacna libanotica is a butterfly (moth ) from the family of the grass leaf miner ( Elachistidae ).
- 4.1 Notes and references
Features
The moths reach a wingspan of 14-15 millimeters. The head shines white. The antennae are ringed white and gray. The thorax is gray and has two front gray and white spots behind a white ribbon. The tegulae are gray and have white rear corners. The front wings are dark gray-brown and pale at the base of the wing inner edge. The Costalstrich is white and mixed with ocher and brown scales. In the Diskalregion is a reddish-brown spot, which is surrounded by white lines in the form of a triangle. On the forewing has two dark brown, raised scales tuft. The first is located below the Costalfalte just before the wing center, the second and larger wing is located on the inner edge of the white triangle. In the apical region of an indistinct broken white line runs. The fringe scales are ocher- gray, provided at the apex dark brown, with two black transverse lines. The hind wings shimmer in light gray.
In the male the uncus is very short and rounded distally. The Gnathos - arms are long, distally tapered and bent back toward the center of Tegumens. The tip is mushroom-shaped and filled with four rows of prongs. The Tegumen is tapered long and distally. The Valven are long and at the base of the narrowest, they widen the apex, the tip is rounded. The Anellus lobes are broad and forked. The Cost alarm is longer and more pointed, the thickest area is located off the tip. The dorsal parallel and are bent inwardly at the apex. The aedeagus is sharpened strong and distally. On the Vesica two parallel rows, each divided into four large thorns.
In females, the apophyses wide distally significantly. The genital plate is more or less trapezoidal, and with the exception of the center strongly prickly. The antrum is very broad, concave and prickly. The ductus bursae has a bulbous portion which is connected directly to the antrum. The corpus bursae has no Signum.
The egg is described by Talkhoud (1948 ) as a light brown. However, this observation comes from shrunken eggs, from which hatched no caterpillars. In comparison, the eggs of other Blastodacna species are initially translucent white, later they are opaque yellow and finally brown.
The caterpillars are quite short and thick. The head is dark brown and has on each side an oval group of six distinctive white ocelli. The mandibles are light brown. The Prothorakalplatte is dark brown, white mixed and divided dorsally. The Analplatte is small and dark brown. The Torah calf A have on each segment, a dark brown band. The abdomen is bein colors. The abdominal legs and the Nachschieber are whitish and the Nachschieber runs a brown belt.
The doll reaches a length of 5.6 to 6.5 millimeters and is pale brown. The front and rear parts are darker. The elytra are quite short and extend only to the middle of the sixth abdominal segment. In contrast, the leaf sheaths rich zoom in Blastodacna atra almost to the end of the abdomen. In the combined ninth and tenth segment there are two leg-like protrusions that are to the abdomen at an angle of 30 to 60 degrees. These are front opening tightly with hook-like bristles. A cremaster does not exist.
Similar Species
Blastodacna libanotica can be distinguished by the whitish Costalrandes the front wing and the white triangular drawing from other species.
Dissemination
Blastodacna libanotica is widespread in Asia Minor and the Middle East.
Biology
The caterpillars develop in pears (Pyrus ). From summer to early autumn put the caterpillars in thin branches feeding tunnels. These start at 30- degree angle and then show up. By feeding activity results in a stretched plants bile, which is 11.5 to 13.5 millimeters long and 7.3 to 8.6 millimeters wide. It is more or less constricted at the center and at the lower end has a circular opening. Several bile can occupy a branch. Before pupation the caterpillars enlarge the opening and flatten an annular region around the opening. At the end of autumn, the caterpillars pupate in the bile. The moths emerge from February to May In Turkey, the Art 2003 was first detected pest on pears.