COLLYRIA. COLEOCENTHUS. 47 



15. Collyria gracilipes, Mots. 



Pachi/merus gracilipes, Motschulsky, Bull. Soc. Imp. Nat. Moscou,. 

 1863, p. 30. 



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

 head nearly one-fifth the length of the whole body in breadth. 

 Head deplauate, subtrans verse and testaceous-red, with only an 

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

 Antennae nearly as long as the body and basally infuscate. Thorax 

 elongate ; pronotum ami all the pleurae testaceous-red ; rnesonotum 

 subovate, convex, centrally impressed and rufescent ; 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. Wings ample, 

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



Length 5 millirn. Sex 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 Pristomerus, 

 Curt., than to Collyria, Schiod. ; it may be the alternate sex of. 

 Pristomeridia marginicottis, described by Cameron in 1907 (Tijds. 

 Ent. p. 110) from Sikkiin. 



Genus COLEOCENTRUS, Grav. 



Coleocentrus, Gravenhorst, Ichn. Eur. iii, 1829, p. 437 ; Thomson, 



Opusc. Ent. viii, p. 732. 

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



GENOTYPE, Ichneumon excitator, Poda. 



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

 genal costa inflexed : clypeus short and discrete, apically produced 

 in the centre ; mandibular teeth subequal. Antennae filiform and 

 shorter than the body ; those of <$ slender. Thorax subcylin- 

 drical ; mesothorax laterally subquadrate, notauli deeply impressed 

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

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

 with a few longitudinal costae only, spiracles distinct and oval. 

 Scutellum triangular and strongly convex. Abdomen snbsessile, 

 convex, as broad as and twice as Jong as the thorax, apically 

 compressed ; ventral valvulae of $ acute and vomeriform ; basal 

 segment subparallel-sided and distinctly deplanate ; 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 subacuminate ; terebra nearly as long as the 

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

 areolet small, triangular and petiolate ; upper wings with the 

 lower basal nervure pellucid, the upper basal strongly oblique and 

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



