BRUES: PARASITIC HYMENOPTERA. 101 



large tooth, behind this with three denticles, another large tooth, 

 then a decreasing series of eight denticles. Ovipositor as long as 

 the body, its sheaths entirely black. Wing-venation typical for the 

 genus, the upper and outer edges of the discoidal cell indicated by 

 slight brown streaks. 



Considering the size 17 mm., the locality ^ and the agreement so far 

 as Westwood's description goes, I think this is undoubtedly his species. 

 It is not, however, the same as Schletterer's Stephanus pallescens from 

 the Philippines which its author suggested might be Westwood's 

 species. Westwood gives 10| lines as the alar expanse which is about 

 right for a species 17 mm. in length, but not for one 11 mm. in length, 

 the size given for *S. pallescens although species of this group sometimes 

 vary considerably in size. The present form differs conspicuously 

 from S. pallescens in the form of the antennal flagellum and pedicel. 



EVANIIDAE. 



Trigonofoenus salomonis, sp. nov. 



Type.— M.. C. Z. 9,0-52. Solomons: Malaita, Auki. W. M. Mann. 



9 . Length 16 mm., ovipositor 20 mm. Black, with deeply 

 infuscated wings; four anterior femora, tibiae, metatarsi, and second 

 joint of trochanters, ferruginous; first joint of these trochanters, 

 second joint of hind ones and hind tibiae fuscous, base of hind tibia 

 yellowish; hind tarsi orange-yellow at base shading to almost white 

 at tip. Face minutely, confluently punctate; front minutely, some- 

 what transversely aciculate; ocelli large, the lateral ones about their 

 own diameter from the eye, malar space well developed, as long as 

 the width of the mandible at base, clypeus with the lateral angles 

 slightly prominent, medially broadly emarginate; cheeks and temples 

 very finely and closely punctate; vertex like the front; occipital 

 margin rather sharp and slightly recurved. Third joint of antennae 

 no longer than the second; fourth over three times as long as second 

 and nearly five times as long as thick; following gradually decreasing 

 in length. Prothorax short, not so long as the distance from humerus 

 to tegula. Thorax short, the mesonotum as broad as long; parap- 

 sidal furrows oblique, nearly straight, meeting at posterior fourth of 

 mesonotum and from thence prolonged to the scutellum as a median 



1 Westwood gives "Solomon's Island (New Hebrides)." 



