On some South African Ichneumonidae. 203 



Scutellum brick-red, convex and laterally margined to near apex. 

 Abdomen black with the second segment laterally indefinitely, and 

 whole of the first, in $ red ; anus, apices of second and fifth segments, 

 with apical angles or in 9 the apex of the evenly punctate basal 

 segment, white; terebra a little exserted, $ valvulae white. Legs 

 elongate and not slender, rufo-infuscate with all coxae, trochauters 

 and hind tarsi black; <$ with trochanters, intermediate coxae beneath 

 and centre of posterior tarsi, white. Wings normal and hyaline, with 

 uervures and stigma black ; second recurrent nervure broadly fenes- 

 trate and emitted from centre of the sessile areolet ; basal nervure 

 continuous through the median. Length, $ 9 > 12 mm. Evidently 

 allied in its continuous basal uervure, etc., to P. erythrocephalus, Cam., 

 though differing in colour, in the evenly punctate postpetiole and in 

 many other points. 



Both sexes were taken at Mfougosi in Zululand by W. E. Jones 

 during February, 1914 and May, 1916. 



PLATYLABUS CETA, sp. uov. 



cf 9 A black species with sparse white markings, the thorax 

 efttirely rosy. Both sexes of this insect differ from the above descrip- 

 tion of P. heinerytltraeus only in the following particulars : Head, 

 scutellum, metathorax and basal segment more sparsely punctate and 

 slightly nitidulous. Head with vertical orbits broadly white, man- 

 dibles red and in the whole face and clypeus, mandibular base and all 

 the orbits but at the temples, white. Antennae less attenuate apically, 

 not basally red ; scape of <$ white beneath. Metathorax without 

 apophyses, areola subcircular and apically emarginate. Scutellum 

 glabrous and uitidulous, deplauate and laterally margined only to its 

 apical third. Second to fifth segments immaculate black, or in $ 

 sometimes badious, the first not white-marked ; postpetiole shagreened 

 and in red. Hind legs dead black, with only their trochanters 

 white. Length, <^ 9 , 9 mm. The male of this species differs from 

 P. Lucifer in its somewhat duller mesonotum, subcircular areola, 

 immaculate hind tarsi and basal segment, and in its smaller size. 



The female type, with three males, was captured at Mfougosi in 

 Zululand by W. E. Jones during April and May, 1916. 



PLATYLABUS LUCIFER, sp. nov. 



<$ only. A black species with white markings, and the thorax 

 except beneath rosy. Too closely allied to P. hemerythraeus to need a 

 detailed description. Therefrom it differs in the much more nitidulous 

 and sparsely punctate body, the totally white face and clypeus, white 



