COLIA'Kl.V. — COLEOCENTUUS. 47 



15, Collyria gracilipes, J/ots. 



Pachymerus gracilipcs, Motscluilsky, Bull. Soc. Imp. Nut. Moscoii, 

 1803, p. 30. 



An elongate, narrow, black and hardly sliiuing species, with the 

 head nearly one-tit'th the length of the whole body in breadth. 

 Head deplauate, subtrausverse and testaceous-red, with only an 

 occipital mark black ; eyes normal, oblong and deep black. 

 Antennce nearly as long as the body and liasally infuscate. Thorax 

 elongate ; pronotuni and all the plcurie testaceous-red ; mesonotum 

 subovate, convex, centrally impressed and rut'escent ; metanotum 

 elongate, shining and apically constricted. Abdomen narrow,, 

 compressed, shining, posteriorly dilated, discally more or less 

 infuscate, with its centre and venter testaceous ; basal segment 

 black and parallel-sided. Legs slender, testaceous and with 

 fuscous markings, with the hind femora narrow. Winf/s ample, 

 with the large stigma infuscate-testaceous and the nervures dark. 



Lem/th 5 millim. Hex not noted. 



Ceylon : summit of Mount Patannas (teste Motschulsky). 



The large alar stigma, normal-sized eyes and elongate antennae 

 render this species probably more closely allied to Prlstomerus, 

 Cnrt., than to Colljjria^ Schiod. ; it may be the alternate sex of 

 Pristomeridia marginicoUis, described by Cameron in 1007 (Tijds, 

 Eut. p. 110) from ISikkim. 



Genus COLEOCENTRUS, Gmv. 



Colooccntnts, Gravenhorst, Iclm. Eur. iii, 1829, p. 437 ; Thomson, 



Opusc. Ent. viii, p. 732. 

 Macrus, Gravenhorst, op. cit. p. 707. 



Ge:n'Otype, Iclmeumon excltator, Poda. 



Head transverse and subbuccate, eyes oval ; cheeks not short, 

 genal costa intlexed ; clypens short and discrete, apically produced 

 in the centre; mandibular teeth subequal. Antennae fiHform and 

 sliorter than the body ; those of J slender. Thorax subcylin- 

 drical ; mesothorax laterally subquadrate, notauli deeply impressed 

 and reaching the centre of the mesonotum, mesosternum not trans- 

 verse Avith no lateral sulci, epicnemia obsolete ; metathorax rugose, 

 with a few longitudinal costa3 only, spiracles distinct and oval, 

 Scutellum triangular and strongly convex. Abdomen subsessile, 

 convex, as broad as and twice as long as the thorax, apicallv 

 compressed ; ventral valvula3 of $ acute and vomeriform ; basal 

 segment subparallel-sided and distinctly deplauate ; the second 

 and third with lateral oblique impressed lines, and in c? the 

 incisures broad and deeply impressed ; seventh and eighth large 

 and produced ; anus subacuniinate ; terebra nearly as long as the 

 body. Legs long and somewhat slender, AVings ample, with the 

 areolet small, triangular and petiolate ; upper wings Mith the 

 lower basal nervure pellucid, the upper basal strongly oblique and 

 not curved ; radius emitted from before the centre of the narrow 



