466 Annals of the South African Museum. 



the pro-mesonotum, very finely on the nodes. The latter and the pro- 

 notum are also sparsely rugose transversely ; the sides of the epinotum 

 have three or four very strong and more or less concentric striae. 

 Basal third of abdomen microscopically alutaceous and longitudinally 

 aciculate ; the rest of the abdomen smooth, with shallow piligerous 

 punctures. Head a little longer than wide, slightly narrowed in front, 

 widest across the posterior fourth, the sides nearly straight. The 

 cheeks, behind and between the eyes and vertex, feebly and obliquely 

 depressed. The posterior margin widely and deeply excised, the 

 apex of the excision subangular. Mandibles smooth, shining, sparsely 

 and finely punctured. Eyes convex, placed in the anterior fourth of the 

 sides. Clypeus carinate, shallowly emarginate in front. The scapes 

 extend a little beyond the middle of the head. Occipito -frontal sulcus 

 very deep and tranversely striate in its posterior half. Posterior lateral 

 angles of pronotum large and prominent. Pro-mesonotal suture more 

 or less apparent. Mesonoturn shallowly impressed transversely in 



(y^ ma An cCa/r&) 



Fig. 30. — P. Liengmei, Forel. 



front of the scutellar region, the latter surmounted by a narrow 

 transverse torus. Meso-epinotal suture wide and deep. Dorsum of 

 epinotum feebly margined at the sides, as long as wide. Epinotal 

 spines distinctly long, acute, subvertical, divergent, longer than the 

 interval between their bases and as long as, or a little longer 

 than, the dorsum of the epinotum. Dorsal edge of the 1st node 

 very feebly emarginate, the dorsal face a little wider in front than 

 behind and about as long as wide. Second node twice as wide as 

 long, the anterior margin convex, the sides produced into two cones 

 which are curved backwards. 



^ . 3'8-4 mm. Dark brown, abdomen nearly black, antennae and 

 legs yellowish-brown, the tarsi yellower, mandibles brownish-red. 

 Pubescence and pilosity scanty. Legs and apical two-thirds of the 

 abdomen moderately shining, the rest of the body dull. Head and 

 thorax closely and strongly reticulate-punctate, appearing granulate 

 under a low magnification. Nodes finely reticulate. Base of abdomen 

 very finely areolate or reticulate, and also longitudinally aciculate. 

 The head has in addition a few longitudinal ruffae at the sides in 



