Vol. XXvi] ENTOMOLOGICAL NEWS. 293 



A. Panctures of the mesonotum coanc or rather coarse. 



B. Puncture* very deep and ooarte, wings aomewhat brownish, 

 tegnlae not punctured. 



C. Tibiar and tarsi rather light brown, wings Tery slightly 

 brownish; sides of all the abdominal segments, except the 

 first, with triangular patcbea of short, huffy hair; 6^ mm. 

 Nebraska //. bruntri Crawford 



CC. Legs black; wings distinctly brown; discs of abdominal 

 segmenu 3 to 5 and sides of 2 with thin yellowish-white 

 pubescence; 7 mm. Widely distributed. 



H. cnssoM Kobcftsoo 

 BB, Pun ct ur e s ooly nodcratc|y course; wings not brownish. 



D. Fadal quadrangle almost square; tegnlae with fine scat- 

 tered punctures, not making the surface opaque; wings 

 ample, hyaline; stigma and u e r w ur e s dilute brown; 7.5 mm. 

 Eastern States. H. nymflmeantm Robertson 



UD. Facial qoadraagle longer than broad, distinctly narrowed 

 below I tcgalaa tatpsBCtalai wings norc or less nulky white, 

 stigma aad acn rt iKS testaceous; 5 to 6^5 mm. Wi«ldy dis> 



tributed. //. albipennis Robertson 



A A. Punctures of the awsoaotum fiaa aad scattered ; facial quadrangle 

 very httle if at all longer thaa hnrnd. 

 E. Ahdoman without awtallic rdcctfaat; asesooo tnm shiny, or 



P. Fadal quadrangle broader Ikaa loof. d|jrpcns short scarcely 

 r ead i ng bdow the eyes; mt s ooofm sUqy, dw punctur e s 

 fine but not widdy separated: tegulae rulo- t as taca o Bs ; wings 

 hyaline, the nerv ur e s and stigma pale testaceous; abdomen 

 dark brown with short grayish pubescence; 7.5 mm. Texas. 



H. eomuxns Cresson 

 PP. Facial quadrangle almost square, clypeus produced about 

 two-thirds of iu length below the eyes; mesoootum shiny, 

 the Kneobtioos very fine or absent; punctures a tittle closer 

 than in H. sub<omn<jnu Ellis but finer than in any other 

 species of the entire group; abdomen black, shiny and gbb- 

 rotts; wings slightly brownish, stigma and nenmrcs reddish 



brown; 7 mm. Wisconsin. f/. Mpwwidw Graenicher 



BE. Abdomen greenish or with very strong metallic reflections; 



mesoootum finely and sharply lineoUte. with very fine and widely 



separated punctures; the last three abdominal segments covered 



with a thin ochraoeous pube s c e n ce ; teguhM brown. 



C. Wti«s hyaline, stigma and nervures testaceous: 6 mm. 



Widely distributed. H. subconnrxus Ellis 



CC. Wum» brownish ; 615 mm. Virginia. 



H. tubioniusiu rokweri Ellis 



