. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 94 Orthorrhapha brachycera. very long, much longer than the head, black; the first joint much elongated, this and the second joint slightly haired with short hairs; the third joint slightly longer than the two first together. Thorax yellow or reddish yellow, with three very broad, greyish black stripes, the two lateral somewhat abbreviated in front. The dorsocentral bristles somewhat short, a little longer behind, uniserial, black. Further a humeral bristle, a posthumeral, two notopleural, a supraalar and a posta
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 94 Orthorrhapha brachycera. very long, much longer than the head, black; the first joint much elongated, this and the second joint slightly haired with short hairs; the third joint slightly longer than the two first together. Thorax yellow or reddish yellow, with three very broad, greyish black stripes, the two lateral somewhat abbreviated in front. The dorsocentral bristles somewhat short, a little longer behind, uniserial, black. Further a humeral bristle, a posthumeral, two notopleural, a supraalar and a postalar bristle, all black; of the notopleural bristles one is somewhat weak, and a third, likewise weak, is some- times present. Sculellum grey with four black marginal bristles, the outermost small. Pleura yellow, metapleura with black hairs; the prothoracic spiracles brown. Abdomen yellow, somewhat shining, with a black dorsal stripe, dilated at the incisures, and with a black stripe at each side, just at the yellow venter. Abdomen is haired with short, yellow r,. 01 IP ^ â hairs. Exterior genitalia large, the lower Fig. 31. ±j. trigramma, ^ ° ' male senitalia. lamellse directed upwards, the upper, hinder angle drawn out into a small process which is black; the upper lamellae protrude forwards between the lower, they are somewhat large, about triangular; the lamellae have short, blackish hairs at the upwards pointing margins, the lower lamellae have longer, yellowish hairs at the lower (backwards pointing) margin. Penis is slightly thickened at the base, curved upwards and forwards, very long, and thin at the apex; the ventral lamella is more or less visible, the eighth segment with longish hairs at the margin. Legs yellow, tarsi blackish, paler at the base; trochanters and apex of femora with a black point. Legs short-haired, tibiae with some few small bristles on the dorsal side, and femora with small bristles at the apex on the anterior and posterior side; the hairs bl
Size: 1523px × 1641px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
