176 PERCY SLADEN TRUST EXPEDITION 



complete arese ; areola elongate, parallel-sided and apically truncate, emitting costulae 

 before its centre; petiolar area deplanate, trans-strigose and distinctly discreted. Scutellum 

 black and finely punctate. Abdomen narrow and apically compressed, with the third 

 segment indefinitely badious laterally; basal segment nitidulous and subglabrous, laterally 

 margined and apically convex ; second nitidulous, very finely and longitudinally aciculate 

 throughout ; following pilose, with terebra two-thirds length of abdomen. Legs dull 

 testaceous with the anterior hardly paler basally; hind coxse, trochanters and tarsi slightly 

 nigrescent. Wings small and hyaline, with stigma piceous and radix testaceous ; basal 

 nervure continuous ; brachial cell apically rectangular below, with basal half of second 

 recurrent nervure nearly entirely fenestrate ; nervellus antefurcal and subgeniculate, 

 though not intercepted, far below its centre. Length, 6 mm. $ only. 



This species is closely allied to C. schoenobius Thomson, O. E. xiv, 1446 (= decoratus, 

 Holmgr., nee Grav.) in its apically strong notauli, deeply punctate mesonotum and 

 rectangular discoidal cell. 



Silhouette ; a single female was captured in September, 1908, at Mare aux Cochons. 



Pristomeridia Ashmead, Proc. U. S. Nat. Mus., 1900, p. 100. 

 15. Pristomeridia ruficapiit, sp. n. 



A slender, black species with the under surface and legs, except apices of hind ones, 

 rufescent testaceous. Head dull, deplanate behind the internally parallel-sided eyes, and 

 rufescent with only the ocellar region and occiput black ; face subtransverse, dull and 

 centrally slightly prominent ; mouth paler, with the discreted clypeus subcircular and 

 centrally tuberculate ; mandibles weak, with teeth of equal length and the upper the 

 larger. Antennae filiform and slender, two-thirds length of body and not apically 

 attenuate; black with the scape entirely testaceous, and the basal flagellar joints elongate. 

 Thorax slender and slightly shining with the sternum entirely, prothorax to tegulse, both 

 meso- and meta-pleurse below, and a dot beneath hind tegulse, rufescent ; mesonotum 

 shagreened, with notauli strong to near disc ; metathorax somewhat smooth, with distinct 

 arete ; areola elongate and parallel-sided, basally constricted to the triangular basal area ; 

 costulse and lateral costse entire. Scutellum black, subconvex and not large. Abdomen 

 slender with three basal segments shagreened and the following compressed, second 

 narrowly testaceous apically; basal segment slender with the postpetiole a little explanate; 

 $ valvulse exserted and testaceous ; terebra fully two-thirds length of abdomen. Legs 

 subelongate, slender and testaceous with the hind tibiae and tarsi entirely nigrescent ; 

 hind femoral tooth at its apical third and obliquely triangular, succeeded by a row of 

 minute serrations. Wings hyaline, neither narrow nor extending to anus ; stigma 

 nigrescent and not broad ; basal nervure continuous ; areolet wanting ; radix and tegulae 

 testaceous; nervellus neither arcuate nor intercepted. Length, 4| — 5 mm. $%. 



I have little hesitation in placing this species in Ashmead's genus, rather than in 

 Pristomerus Holmgr., since the hind femora are not at all incrassate and the nervellus is 

 obviously entire, though the hind femoral tooth is not near the apex and is succeeded by 

 distinct serrations. Our species is allied to P. marginicollis Cam. (Tijds. v. Ent. 1907, 

 p. 110, $) from Sikkim, but there can be no doubt respecting its specific distinctness. 



