. Fig. 47. Wing of P. unispinosa $. scence; one pair of dorsocentral bristles. Pleura greyish black or brownish to yellowish brown. Scutellum with two bristles. Abdomen black, not shining, second and sixth segments slightly elongated. Abdomen with very sparse hairs, only at the hind margin of sixth segment a little more conspicuous hairs. Hypopygium greyish or reddish grey, not large, the tergite is short above, the sides prolonged as two band-shaped or a little spoon-shaped prolongations forming something like a forceps, the right arm is a little longer than the left; anal tube short, somewha


. Fig. 47. Wing of P. unispinosa $. scence; one pair of dorsocentral bristles. Pleura greyish black or brownish to yellowish brown. Scutellum with two bristles. Abdomen black, not shining, second and sixth segments slightly elongated. Abdomen with very sparse hairs, only at the hind margin of sixth segment a little more conspicuous hairs. Hypopygium greyish or reddish grey, not large, the tergite is short above, the sides prolonged as two band-shaped or a little spoon-shaped prolongations forming something like a forceps, the right arm is a little longer than the left; anal tube short, somewhat flat, yellow, with longish hairs; there is a large and arched, somewhat triangularly pointed ventral plate of brownish colour. Legs yellow or brownish yellow; front tibiae with a small dorsal bristle at about the middle; middle tibiae with a pair at the upper third, a dorsal and an anterodorsal, the former gener- ally the smaller and perhaps sometimes wanting, and with a very small anterior bristle at apex, sometimes wanting; hind tibiae with a dorsal bristle above the middle and a small anterodorsal at apex, sometimes almost (or quite) wanting. Wings a little brownish tinged, veins brown; costa reaching beyond the middle, 1 about double 2;


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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera