190 ICIIXEUMOXID.E. 



Type in the British Museum ; that of P. olynthia in the Oxford 

 Museum. 



Cameron, whose description is quoted above, says (loc. cit. 1899) 

 that this species agrees with Smith's New Guinea Pimpla nigri- 

 cornis, <f (Jouru. Linn, Soc. viii, 1864, p. 64), but that the latter 

 is smaller and has the mesonotum punctate. From all its allies 

 here described, this female is at once known by the impunctate 

 and strongly bicariuate basal segment, and centrally more closely 

 punctate abdomen (the pilosity of the legs also appears distinc- 

 tive), though it is obviously very strongly allied to H. testacea, 

 which, however, has the abdomen distinctly punctate throughout 

 and the hypopygium concolorous with the remainder of the 

 venter. Saussure's Hemipimpla caffra, from Pretoria, is cer- 

 tainly synonymous with the Indian species. 



A single from Moulmein in the British Museum, taken in 

 1843, differs in having the infumate alar margin subobsolete. 



130. Hemipimpla rugosa, de G. 



Sphex rttgosus, de Geer, Mem. Hist. Xat. Ins. iii, 1773, p. o97, 



pi. xxx, tig's. 18, 19; Goze, Abh. Gesch. Ins. iii, 1780, p. 387, 



pi. xxx, figs. 18, 19 ( $ ). 

 Ichneumon ruyosus, Retzius, Gen. et Spp. Ins. 1783, p. 67 ; cf. 



Gravenhorst, Ichn. Eur. iii, p. 1019 ($). 

 Ichneumon vacillator, Olivier, Encycl. ine"th. 1792, p. 180 ( $ ). 

 Pimpla bipartita, Brulle, Hist. Nat. Ins. Hyiu. iv, 1846, p. 88 ($ ) ; 



Tosquinet, Ichn. d'Afrique, 1896, p. 297 (rf $) 

 Rhyssa bipartita, Yollenhoven, Stett. Ent. Zeit. 1879, p. 142 ($ ). 

 Trichiothecus ruficeps, Cameron * Jour. Str. Br. Roy. As. Soc. 1903, 



p. 137(8). " 



(3 1 $ . A handsome black species, with the headandmost of the 

 thorax red, and the wings deeply clouded throughout. Head 

 entirely red, transverse and strongly constricted behind the 

 prominent and black eyes ; occiput abruptly declivous, glabrous 

 and nitidulous, finely bordered posteriorly, with a few obsolete 

 punctures; ocelli infuscate and elevated upon a common plateau ; 

 frons glabrous, with the scrobes large and extending nearly to 

 the ocelli ; face deplanate, with a few fine scattered punctures 

 and black hairs, centrally subelevated longitudinally and discrete 

 from the deplanate and centrally impressed clypeus ; mandibles 

 not very stout, with the subequal teeth infuscate and apically 

 subobtuse; cheeks somewhat shorter than the basal breadth of 

 the mandibles; eyes only slightly emarginate next the scrobes. 

 Antennai black, forty-jointed, somewhat shorter than the body 

 and apically attenuate ; scape rufescent throughout ; flagellur 

 joints cylindrical and not elongate, with the basal ones apically 

 subnodulose. Thorax red, glabrous and very strongly nitidulous, 

 with sparse griseous pilosity on the infuscate metathorax ; notauli 

 anteriorly distinct ; metathoracic area? entirely wanting, but with 



