204 Annals of the South African Museum. 



mandibular base, external orbits, underside of scape and callosity 

 below radices ; in the glittering and convex speculum, deplauate 

 scutellum, much longer areola emitting costulae from its centre, 

 wanting basal area ; immaculate fifth segment, white front coxae and 

 underside of their tibiae. The postpetiole is obsoletely shagreeued, 

 with a few scattered punctures. Length 14 mm. 



The type was found by W. E. Jones during May, 1916, at Mfongosi 

 in Zululand. 



PLATYLABUS VALLATTJS, Mori. 

 Ann. S. Afr. Mus. xv, 1916, p. 370, <J. 



This g sometimes has the mesonotum laterally, and centre of 

 scutellum longitudinally, black ; the cariuae of the latter are some- 

 times pale, and the stigma occasionally testaceous. Mr. Jones found 

 a male with these modifications in Zululand at Mfongosi during May, 

 1916. 



PLATYLABUS TESTACEUS, sp. nov. 



J 1 9 A nearly uuicolorous testaceous and dull species ; only the 

 head, scutellum, anus and pleurae are indeterminately fiavesceut ; the 

 maiidibular apices, ocellar region narrowly, apical half of flagellum, 

 claws or m <$ hind tarsi, the terebra, and sometimes part of the sixth 

 and seventh segments, black. Head posteriorly short ; cheeks very 

 long and buccate ; face evenly punctate and not apically discreted ; 

 frons uitidulous and subglabrous. Antennae white-banded, with 

 apical half a little compresso-dilated, in <$ subseiTate. Notauli 

 indicated ; metathorax finely coriaceous with areola hexagonal, as long- 

 as broad, entire, with central costulae ; basal area distinct, apophyses 

 wanting, spiracles elongate. Scutellum glabrous and glittering, sub- 

 convex and laterally margined to near its apex. Abdomen dull and 

 coriaceous, apically more or less iufuscate before the white anus ; 

 postpetiole shagreened ; thyridii somewhat broad, with the intervening 

 space strigose ; terebra slightly exserted. Legs not slender, paler 

 basally ; tarsal claws large. Wings ample and subflavescent with 

 radix and stigma testaceous, uervures darker ; areolet small and 

 triangular, nervelet usually obsolete or wanting. Length $ $ , 

 7-11 mm. Slightly variable in the depth of the testaceous coloration, 

 in extent of black befoi-e the anus ; sometimes the $ hind tibiae are 

 apically subinfuscate, and in one example their base is also distinctly 

 nigrescent. 



Nearly a dozen examples occurred to Mr. W. E. Jones at Mfougosi 

 in Zululand during April and May, 1916. 



