. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. â |g2 Oilhonhapha brachycera. thoracic disc have similar hairs, which are fused with the dorsocentral hairs. Further a humeral bristle, a posthumeral, about four noto- pleural, a supraalar and a postalar bristle, all black; besides there are stronger and weaker hairs on the humeri and in the anterior part of the prsesutm-al depression, Scutellum with four black marginal bristles. Pleura greyish, metapleural bristles black; propleura with black hairs. The spiracles yellowish brown. Abdomen black, dull, with narrow
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. â |g2 Oilhonhapha brachycera. thoracic disc have similar hairs, which are fused with the dorsocentral hairs. Further a humeral bristle, a posthumeral, about four noto- pleural, a supraalar and a postalar bristle, all black; besides there are stronger and weaker hairs on the humeri and in the anterior part of the prsesutm-al depression, Scutellum with four black marginal bristles. Pleura greyish, metapleural bristles black; propleura with black hairs. The spiracles yellowish brown. Abdomen black, dull, with narrow greyish hind margins to the segments; it is clothed with black hairs and has strong bristles at the hind margins of the seg- ments. The fourth dorsal segment has a curious shape, it is some- what excised in the hind margin on each side at the lower angle, and below the excision the angle is drawn out into a process, which bears a tuft of strong bristles; in the excision a somewhat broad membrane is seen. The venter is greyish, with black hairs. Exterior genitalia not large, somewhat resembling those in tessellata; the lower lamellae triangular, directed upwards, the upper apex drawn out into a distinct point, which is curved slightly backwards; the upper lamellae small, triangular and pointed; the lower lamellae have short hairs at the hind margin. The somewhat sinuous apex of the black penis protrudes forwards between the upper lamellae (in my specimen), it has a small dilatation near the middle; the genitalia are more strongly compressed than in tessellata, and have a more pointed upper apex. Legs rufous; coxae blackish, greyish pruinose, trochanters black, the femora more or less darkened in the middle, and the tarsi blackish towards the apex. The legs haired somewhat as in tessellata; the anterior femora with stronger and weaker hairs on various sides; the hind femora with bristles on the ventral side; front tibiae with bristles on the dorsal side and a dense, short, pale
Size: 2642px × 946px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
