. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. Asilidae. 75 black with yellow hairs. Frons and vertex greyish, with black hairs. Occiput greyish yellow, the occipito-orbital bristles black; the hairs yellow. Antennae black, narrowly reddish at the apex of the second and the base of the third joint; the two first joints with black hairs which are long below the first joint. Thorax light greyish or brownish, the middle stripe brownish black or blackish, broad in front, narrowed and pointed behind, with a very narrow median line in front; the side stripes large,


. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. Asilidae. 75 black with yellow hairs. Frons and vertex greyish, with black hairs. Occiput greyish yellow, the occipito-orbital bristles black; the hairs yellow. Antennae black, narrowly reddish at the apex of the second and the base of the third joint; the two first joints with black hairs which are long below the first joint. Thorax light greyish or brownish, the middle stripe brownish black or blackish, broad in front, narrowed and pointed behind, with a very narrow median line in front; the side stripes large, somewhat lighter than the middle stripe, dark brownish or grey; no humeral stripes. The disc clothed with short, erect, black hairs which are longer behind, and yellowish at the hind and posterior lateral margins. The bristles black, sometimes some yellow posteriorly. Seutellum with yellowish hairs and long, generally black marginal bristles. Pleura grey or brownish pruinose with some longer, yellowish hairs; the long hairs on meta- and hypopleura yellow. Abdomen light brown, sometimes with indications of a dorsal line; with the light from behind the abdomen is dark brown or greyish, slightly shining, with yellowish brown or greyish hind margins of the segments, and with the side margins and the hind corners of the segments of the same colour. Venter grey. Abdomen clothed with depressed, yel- lowish hairs, sometimes a few in the middle line are black, and on the last two segments the hairs are generally black; at the hind mar- gins of the segments there are moderately long, yellow bristles. Venter sparingly clothed with long, yellowish hairs; the eighth ventral seg- ment is black, somewhat shining, the hind margin is produced in a long, tongue-shaped prolongation, rounded at the apex; it has a tuft of long hairs which are ferrugineous above, black below; in the middle of the hind margin of the seventh segment there are black hairs. The ven- tral lamella is black, shining. The


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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera