174 [August, 



brown, witli two dark linos ; abdomen reddish-brown, with the anal segments of the 



male yellow ; wings flavescent, with yellow veins ; legs pale yellow. 



Length, 8 mm. 



N. STRIOLATA, Mgll. 



Very similar to N. armipes, but has the thorax dark grey and unstriped ; and 

 the abdomen ycllowish-gi-ey, with the anal segments black. Length, 9 — 10 mm. 



N. spiNiPEs, Mgn. 



This long, slender species is aberrant, and has been placed by Rondani and 

 Becker in a new genus named Achantholeta. It has the antennae, palpi and pro- 

 boscis yellow ; arista sub-nude ; thorax yellow, with black stripes ; abdomen shining 

 black above, with sides and anal segments yellow ; wings with a large dark spot 

 upon the apex. Length, 8 mm. 



Gen. IV.— CNEMOPOGON, End. 



Gen. cli. — Head subglobose ; antennsE prolonged, the third joint 

 three or four times the length of the second ; arista thickened, 

 subplumose, with second joint, elongated and mostly geniculated with 

 the third ; palpi filiform, without apical setae ; abdomen setose ; legs 

 hairy with femora a little thickened. 



Sp. 1. — C. APiCALis, Wdm. 



Antennae black ; frontal space with dull black stripe and white margins ; face 

 and palpi white ; proboscis black ; thorax bright black, indistinctly striped ; shoulder 

 points white ; sides pale grey ; scutellum black ; abdomen black, long, narrow, with 

 apex clubbed in the male, segments with white edges and numerous hairs ; winga 

 grey ; legs yellow with black tarsi ; fore femora with a black stripe on the side, and 

 ends of the middle and hind femora black ; the femora and tibiae are also ciliated 

 beneath with long hairs, especially on the hind legs. Female similar to male, but the 

 abdomen is lanceolate, and without white incisions. Length 6 — 7 mm. Eare. 



Gen.-V. POGONATA, Zh. 



Gen. ch. — General form and habit those of Cordylura ; head small 

 and subglobose ; arista pubescent ; oral setfe large and numerous ; 

 palpi somewhat clavate and without apical setae ; abdomen of male 

 long, subcylindrical, gradually thickened towards the end, which is 

 pointed, incurved, and furnished beneath with a large complicated 

 hypopygium ; from the sides of which large tufts of hair spread upwards 

 and forwards ; wings with the first posterior cell divided by two extra 

 cross veins placed at about equal distances between the little cross 

 vein, and the extremity of the wing ; abdomen and wings in the 

 female without peculiar features. 



