328 Ann ah of the South African Museum. 



separated by a smooth interval not equal to their diameter, second 

 and third segment densely fringed with greyish hairs ; hind tibiae 

 simple, spurs long, black. 



Length 10-11 mm. ; expanse of wings 16-17 mm. 



Hab. Southern Rhodesia (Salisbury), G. A. K. Marshall. 



Not unlike in livery D. procne, Per., from which it differs how- 

 ever in the shape of the mandibles ; the slender basal part of the 

 petiolate abdominal segment is shorter, and the apical part more 

 roughly nodose. 



DASYLABROIDES THABA, sp. n. 



cf . Black, the second abdominal segment with a fringe of dense 

 long white hairs forming a band along the apical border, third seg- 

 ment with a similar band ; antennae flavous, tibiae pale rufescent. 

 Head as broad as long on the vertex, eyes slightly emarginate, 

 moderately large, set forward, genae much longer than the eyes, 

 posterior angles broadly rounded, surface covered with even, closely 

 set punctures and sparingly villose black and grey, mandibles 

 simple, left forcipate, trifid at apex, the right bifid only, the inner 

 tooth not apical ; antennae long, slender, third joint much shorter 

 than the fourth ; thorax with a robust neck, pronotum sloping later- 

 ally a little with the outer angles distinct ; tegulae not rudimentary, 

 sub-rufescent ; scutellum rounded, metanotum not wider than the 

 pronotum, gradually attenuate rounded laterally in the posterior 

 half, surface foveolate punctate in the anterior and median part, 

 sparingly villose black, and reticulate in the metanotum which is 

 villose white ; abdomen petiolate, stem of petiole somewhat short, 

 the petiole itself broadly nodose at apex, and foveate above, the 

 carinule underneath very long, entire, second segment plainly 

 oarinulate reticulate, but the interval of the punctures are only 

 strigillate towards the apex ; legs with white bristles, femora 

 black, tibiae partly rufescent, spinose on the upper side, tarsi and 

 spurs rufescent. 



Length 7 mm. 



Hab. Cape Town, L. C. Peringuey. 



Although the stem of the petiole is slightly shorter than in the 

 other males of this genus, this species, easily recognized by the 

 colour of the antennae, should, I think, be included in Dasylabroides 

 rather than in Dasylabris. I have seen one example only, and 

 the absence of wings may be accidental. 



