NORTH AMERICAN HYMENOPTERA. 131 



ENCYRTUS Dalman. 



29. Eiioyrtus siphonopliorse n. sp. 



9 . — Length .04 iucli. Black, iii certain lights piceo-black, sparsely pubescent ; 

 mouth parts piceous ; abdomen at sides and beneath testaceous, above black ; 

 legs : femora piceous, coxse, tibite and tarsi yellow ; wings hyaline, veins yellow- 

 ish, submarginal vein broken before reaching the margin, marginal vein long, 

 thick, postmarginal and stigmal veins short. 



Described from several specimens bred in 1881, from Orange Aphis 

 (^Sipho)iophora cltrifolii Ashm.) 



Subfamily— PTEROMALIN^. 

 PACHYNEUROI¥ Walker. 



30. Pachyneuroii syrphi u. sp. 



9 . — Length .06 inch, % .04 inch. Blue-black, shining, pubescent ; antennte 

 browu ; metathorax brassy ; legs tawny, with the tibipe .slightly infuscated ; mid- 

 dle tibial spur not quite as long as first tarsal joint; wings hyaline, the po.st- 

 marginal vein as long as marginal and stigmal veins combined, stigmal vein 

 slightly longer than the marginal. 



In the S the marginal vein is very short, the legs yellow, and the 

 body is brassy. 



Described from 9 and % specimens bred from Syrphus larvae. 



COPIDOSOMA Ratzeburg. 



31. Copidosoma nielanoceplialuin n. sp. 



%, . — Length .05 inch. Pale yellow brown ; head and eyes black ; antennse 

 thick, clavate ; scape, pedicel and first two joints of flagellum tawny yellow, 

 other joints greatly thickened, dark brown, shading into black on club; wings 

 fusco-hyaliue, very hairy with the stigmal vein long aud curved. 



Described from one specimen bred May, 1885, from Cynipidous 

 oak gall Dryorliizoxenus floridamis Ashm. 



CHIEONElTRrS Westwood. 



32. Chiloneurus cupreicollis n. sp. 



9 . — Length .08 inch. Slender, pubescent ; head dull metallic green ; eyes 

 red-brown ; antennse very long, slender, subclavate, the scape very long and 

 slender with pedicel and first flagellar joint tawny yellow, flagellum dark brown ; 

 prothorax cupreous ; scutellum bright yellow at base, dull metallic green towards 

 tip and armed with a long black bristly horn ; sternum piceous, the large meso- 

 pleural pieces coppery and violaceous ; legs : coxse and anterior legs tawny, mid- 

 dle legs infuscated with browu, posterior femora and tibife dark brown ; abdomen 

 violaceous above, cupreous beneath, pubescent ; wings brown, base aud extreme 

 tips hyaline. 



This beautiful species, the prettiest yet described of this interesting 

 g;enus, was taken on Lecanium scales on oak in the summer of 1885. 



