368 Annals of the South African Museum. 



contrast of the dark wings with very pale stigma, render this insect, 

 which has much the facies of a pale A. armatorius, Forst., remarkable. 

 Found at Saldanha Bay, eighty miles from Cape Town, during Sep- 

 tember, 1912, by L. Pcringuey. 



SUBTRIBE PLATYUEINI. 



EUKYLABUS, Wesrn. 

 Nouv. Mem. Ac. Brux. 1844, p. 150. 



EURYLABUS CYANOCROCEUS, Sp. 11OV. 



? only. A large and slender, dull and dark metallic blue species 

 with the basal two-thirds of the strongly attenuate flagellum (becoming 

 stramineous centrally), the large and strongly convex, sparsely punc- 

 tate and inimarginate scutellmn, with the whole legs except coxae and 

 trochanters, bright croceous. Metanotum deplanate and scabriculous, 

 with basal petiolar carina strong and all others wanting ; postpetiole 

 deplanate, narrow and subglabrous ; abdomen not broader than thorax, 

 with its terebra subconcealed ; hind coxae elongate and simple. Wings 

 hyaline with the stigma and nervures black ; basal nervure continuous, 

 nervelet elongate, areolet a little higher than broad, emitting recurrent 

 from its centre. Length, 15 mm. A most conspicuous species in its 

 brilliant colouration. 



The type is from Gfiftsberg, Ehyusdorp, in Cape Colony, during 

 September, 1911. 



PLATYLABUS, Wesm. 

 Nouv. Mem. Ac. Brux. 1844, p. 150. 



PLATYLABUS RUFESCENS, sp. uov. 



A dull, dark brick-red species with the sternum, hind coxae, their 

 trochauters and femora, the fourth to seventh and apical flagellar 

 joints, and the stigma, black ; the eighth to fifteenth flagellar joints, 

 and anus from apical half to the fifth segment, white. Head narrow 

 and constricted behind the eyes ; f rons and face strongly and evenly 

 punctate ; clypeus not basally discreted, with its apex slightly rounded 

 and black-margined ; cheeks elongate and not buccate. Flagellum 

 slender and filiform to near its apex, before which it is slightly com- 

 presso-dilated. Thorax very closely and evenly punctate, dull, with 

 no notauli ; metauotum deplanate with areae entire, costulae weak, 

 areola oval and longer than broad, spiracles linear and not small; 

 petiolar area abruptly declivous, discreted, with its basal carina strong 



