218 Annals of the South African Museum. 



Longurio micropteryx is a typical representative of the geuus except 

 for the microscopic wings. In this latter feature it agrees with 

 Tipula chionoides, Alexander (Ann. S. Afr. Mus., vol. xvii, pt. ii, 

 1917, pp. 164, 165), which is also to be considered as being a species 

 of Longurio, this refei^ence being based on the bifid nasus and the 

 strong resemblance to the present species, which, from the charac- 

 teristic structure of the male hypopygium, is an undoubted Longurio. 

 L. micropteryx differs from L. chionoides in its small size, pale 

 coloration, the conspicuous black lateral stripe on the abdomen, the 

 pale impressed areas on the abdominal segments, the different structure 

 to the nasus and numerous smaller characters. 



GEN. HABROMASTIX, Skuse. 

 1890. Proc. Linn. Soc. N.S. Wales, vol. 5, ser. ii, pp. 93, 94. 



HABROMASTIX AFRICANA, sp. n. 



Antennae of the male elongate, about as long as the body, the 

 flagellar segments clothed with a dense, erect, pale pubescence ; 

 general coloration dark brown ; wings dusky, a clear whitish spot 

 before and beyond the stigma. 



Male. Length 11 mm. ; wing 11 mm. ; antenna 10'5 mm. 



Frontal prolongation of the head short, dark brown. Palpi short, 

 yellow basally, the terminal segments dark brown, Antennae of the 

 male elongate, filiform, nearly as long as the body ; scapal segments 

 short and small, the second cyathiform, with the apex abruptly 

 truncated ; first flagellar segment enlarged at the extreme base ; 

 segments of the flagellum greatly elongated, clothed with a con- 

 spicuous dense, erect, white pubescence ; scape light yellow, the 

 flagellar segments dark brown except the base of the first and, less 

 distinctly, the articulations of the succeeding segments. Head broad ; 

 eyes large, black ; distance separating the eyes moderate, the vertical 

 tubercle prominent, conical ; head brown. 



Mesonotum rather dark brown without distinct stripes. Pro- and 

 meso-pleurites darker than the yellowish metapleura. Sternites dark. 

 Halteres very long and slender, dark brown, with the extreme base 

 more yellowish. Legs with the fore and middle coxae infuscated, the 

 posterior coxae yellow ; trochanters yellow ; remainder of the legs 

 broken. Wings dark brownish-grey, the costal and subcostal cells a 

 little darker; stigma elongate, dark brown; a clear whitish obliterative 

 spot before the stigma and a less distinct spot beyond the stigma in 

 cell 2nd R ; veins dark brown. Venation (Plate IV, fig. 17) : Sc 

 long, ending opposite the tip of the sector ; /Sc 1 persistent ; Rs short* 



