"32 Annals of the South African Museum. 



first and second basal cells, at the base of the second submarginal cell, 

 and at the bases of the second, third and fourth posterior cells ; the 

 second posterior cell is more elongate, about as broad as long. 



BOMBYHUS NIGRIPECTEN, Sp. 11OV., $ . 



A species of medium size, distinct from the two following ones, 

 which are likewise destitute of peristomial comb, by the wings having 

 a black basal comb and being rather spotted. 



Type <$ , a single specimen from Bushmanlaud, Henkries (Cape), 

 (E. M. Lightfoot). Length of body 9'5 mm. 



Head black, entirely clothed with long white hairs, only the vertex 

 and the narrowest part of the f rons with fuscous hairs ; hairs of the 

 occipital border very long and erect ; frons rather narrow. Antennae 

 entirely black, with white hairs at base, the third joint linear, not 

 thickened at base, a little longer than the first ; proboscis black, 4 mm. 

 long. Thoi'ax entirely clothed, even on the pleurae, with rather long 

 white hairs, which on the back have a sericeous sheen ; the bristles in 

 fi-ont and near the base of the wings are well developed and of a 

 yellowish colour. Scutellum with a deep black hind boi'der, clothed, 

 like the thorax, with yellowish bristles at the hind border. Squamae 

 dirty brownish with fuscous border and long and dense grey fringe ; 

 halteres yellowish, with whitish knob. Abdomen black, only the three 

 last segments being narrowly red on the sides ; it is denuded, but its 

 hairs seem to be longer but coloured like those of thorax, with some 

 tufts of dark hairs on the sides ; on the hind border of each segment, 

 excepting the first, there is a complete row of very strong and long 

 bristles, which, at least on the last four segments, are dark with yellowish 

 base ; the venter is clothed with white hairs and has strong bristles like 

 those of the upper side ; the genitalia are red in part. Legs with black 

 femora and yellow tibiae and tarsi ; the femora are clothed with silvery 

 scales and have a yellow tip, which is broader on the four anterior 

 ones ; hind femora with a row of 7-8 very strong yellow bristles ; 

 underneath the hairs of the legs are all white and the spicules of the 

 tibiae yellowish ; claws black. Wings greyish hyaline, with black 

 veins, but the first and the auxiliary vein are yellow ; the anterior basal 

 half show a distinct but faint iiif uscation ; on the origin of the second 

 longitudinal vein, on the discal cross-vein, on the anal cross-vein 

 and on the base of the cubital fork there are rather distinct fuscous 

 spots, and two other less distinct spots are set on the two basal angles 

 of the third posterior cell. Upper branch of the cubital fork much 

 retreating at base ; first posterior cell rather narrow, acute at end and 

 long-stalked ; discal cross-vein set a little after the middle of the 



