. Fig. 30. M. atricapillus, male forceps. with whitish grey hind margins of the segments and simiiaily coloured hind corners and side margins. Venter grey. Abdomen clothed with short, depressed hairs which are yellowish, but black in the middle line, or all black and only the longer hairs at the side margins of the first segments yellow; the hairs on the last segment are always black. At the hind margins of the segments there are somewhat weak bristles, they are yellow, sometimes with some black intermingled. Venter sparingly clothed with long, pale hairs, black at the apex. Genitalia rather s


. Fig. 30. M. atricapillus, male forceps. with whitish grey hind margins of the segments and simiiaily coloured hind corners and side margins. Venter grey. Abdomen clothed with short, depressed hairs which are yellowish, but black in the middle line, or all black and only the longer hairs at the side margins of the first segments yellow; the hairs on the last segment are always black. At the hind margins of the segments there are somewhat weak bristles, they are yellow, sometimes with some black intermingled. Venter sparingly clothed with long, pale hairs, black at the apex. Genitalia rather small, black; the arms of the upper forceps curved very slightly down towards the apex, with nearly parallel margins, rounded at the end and very slightly excised above; the lower forceps reaching two thirds of the length of the upper; the eighth ventral segment has in the middle of the hind margin a broad prolongation which is more or less roundly excised in the hind margin, and here bearing long, black hairs; the ventral lamella is brownish pruinose like the segments. The geni- talia are generally yellowish haired above, black haired below, there are especially strong, black hairs on the lower forceps. Legs black and ferrugineous; coxae greyish pruinose with long, pale yellowish hairs; femora black, the apex and a dorsal, somewhat backwards lying stripe ferrugineous, the stripe generally occupies more or less of the apical half of the posterior side on the anterior femora; tibiae generally rufous with exception of the ventral side and the apex; sometimes they are nearly quite rufous; metatarsi and the base of the next joint ferrugineous, the other joints black; the ferrugineous colour often much more restricted, and often very dark. The short hairs on the legs yellowish, only black on the dorsal side of the tibise, but varying to being nearly all black; long, thin hairs are found on the ventral and posterior sides of the front femora, on the ventral side of the posterior femor


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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera