. c5' 9 Fig. 11. Head of N. notatus male and female. above the antennae, with a somewhat obcordate white spot, divided by a fine black line. Thorax shining black, slightly bluish; the white humeral callus rather large, and the white stripe going to the wing- root distinct and broadened behind. Pubescence greyish white, shi- ning. Abdomen white, the base with a black spot, nearly reaching the lateral margins of the first segment and produced over the middle of the second segment, here conically tapering; on the third segment a black spot, that is either roundish and isolated or more quadratic a
. c5' 9 Fig. 11. Head of N. notatus male and female. above the antennae, with a somewhat obcordate white spot, divided by a fine black line. Thorax shining black, slightly bluish; the white humeral callus rather large, and the white stripe going to the wing- root distinct and broadened behind. Pubescence greyish white, shi- ning. Abdomen white, the base with a black spot, nearly reaching the lateral margins of the first segment and produced over the middle of the second segment, here conically tapering; on the third segment a black spot, that is either roundish and isolated or more quadratic and with prolongations from the hind corners connected with the black
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera