2G2 Amifih nf flic Sou Hi African Museum. 



GEN. DICROTENDIPES. 



DICROTENDIPES PILOSIMANUS, n. Sp. 



3 ? . The female is yellowish with the tnesonotum, scutellum, 



and halteres pure white, 3 short hands on the niesonotum, the outer 



two acuminate behind and connected with a black dot, metanotum 



and mesosternum brownish yellow, legs yellowish, 5th joint of all 



tarsi, and in addition also the 4th tarsal joint, the end of the femur 



and tibia and of the 3 first tarsal joints brownish black, antennae 



whitish, the 6th joint brown. The colour of the male is similar to 



that of the female except that the abdomen is greenish in its anterior 



p.irt with a spot or transverse band darker and covering the anterior 



half of the tergites, the apical half of the abdomen and the forceps 



are brownish, scape black, fiagellum whitish, the white of the 



mesonotum 'a little pruinose, the scutellum greenish white. Palpi 



pale, long, consisting of 4 joints. Antennae of male 12-jointed, the 



last joint from 2| to 3 times as long as the preceding 10 united, 3-11 



very transverse, plume grey. Antennae of female 6-jointed, last 



joint nearly twice as long as the penultimate, 2-4 with long verticils, 



neck a little shorter than the nodose part. Wings white with sub- 



circular deep dark stains, 1 on the transversal and the neighbouring 



part of the discoidal, 3 forming approximately an open arc, the 



inferior situated at the central part of the two rami of the postical 



vein, the median between the upper minus and the discoidal; the 



geminate upper one is situated between the discoidal and the cubitus ; 



lastly there are two spots between the stem of the postical and the 



inferior border of the wing, the one proximal the other distal, the 2 



rami of both the postical and the discoidal are slightly bordered with 



fuscous, nervures pale. Fore metatarsus of the male longer by half 



than the tibia, its distal 3rd and the joints 2-4 with erect hairs and 



5-6 times as long as the thickness of the joints, 1st joint more than 



twice as long as the 2nd, 4th double the length of the 5th, pulvilli 



large and broad as in CJiirouoinus ; in the female the fore metatarsus 



is longer by two-thirds than the tibia. Terminal joint of the forceps 



strongly arcuate, glabrous in its distal end which is gradually 



narrowed, apex provided on the median side with 8 seriate setae of 



short length but as long as the thickness of this part of the joint, 



lower appendix slender, pubescent, arcuate outwardly, reaching 



almost to the middle of the terminal joint, bifurcate a little beyond 



the middle, the proximal branch almost at right angles with the 



basal part, linear, glabrous, bearing 5 or 6 setae disposed in a median 



