. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 64 Fig. 33. Verrallia aucta (J. Head in profile. bristles smaller. Eyes practically bare, in the male the facets a little enlarged, decreasing evenly in size towards the hind margin, in the female they are more enlarged just in front, around the antennae. Antennae (fig. 36) inserted in the middle of the head near to each other, the third joint irregularly oval, rounded below, the second wuth numerous long hairs above and below, longest below. Epi- stoma as in Chalarus but longer, and likewise raise
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 64 Fig. 33. Verrallia aucta (J. Head in profile. bristles smaller. Eyes practically bare, in the male the facets a little enlarged, decreasing evenly in size towards the hind margin, in the female they are more enlarged just in front, around the antennae. Antennae (fig. 36) inserted in the middle of the head near to each other, the third joint irregularly oval, rounded below, the second wuth numerous long hairs above and below, longest below. Epi- stoma as in Chalarus but longer, and likewise raised above the level of the eyes. The mouth parts I have not been able to examine, but no doubt they are mainly as in Pipunculus. Thorax quadratic, a little arched above, the humeral knob slightly visible as it is lying on the front side; the disc with longish hairs, shorter in the female; among the hairs two posthumeral, a notopleural, a supraalar and two postalar bristles are visible, as also a pair of dorsocentral bristles behind; at the margin of scutellum four or more bristles or strong hairs; on account of the shorter hairs the bristles are more conspicuous in the female than in the male; propleura wuth some small hairs and mesopleura with dense, longish hairs behind the suture. Abdomen (fig. 34) somewhat flattened, a little narrowed behind; in the male there are six not transformed dorsal segments, the sixth being small, and there are five not transformed ventral seg- ments, the sixth ventrite being unsymme- trical, only developed on the left side. The genitalia are otherwise constructed mainly as in Pipunculus or especially as in Chalarus\ on the left side the seventh segment is present, but of this only the tergite is seen, bending down on the ventral side and only occupying the left half part of the breadth; the eighth segment, which is formed quite as in Chalarus^ has no apical impression; it consists, seen from above, of a somewhat triangular piece on the left side and
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
