1899.] NATURAL SCIENCES OF PHILADELPHIA. 453 



head but little wider than long; front with strong nearly confluent 

 punctures, distinctly impressed; ocelli forming a low curved line; 

 clypeus convex, slightly longer than broad terminating in two stout 

 widely separated teeth each of which is preceded by a short carina; 

 thorax longer than broad, strongly punctured, the pronotuin most 

 closely; the latter sharply margined anteriorly, and with the antero- 

 lateral angles prominent, though obtuse; punctures of dorsulum 

 largest posteriorly; scutellum impressed, with large sparse punc- 

 tures posteriorly and closer ones posteriorly; middle segment with 

 large deep punctures, slightly depressed at base, broadly and shal- 

 lowly so posteriorly, rather densely pilose; petiole longer than 

 thorax, basal stem tolerably stout, the enlargement beginning a 

 little before middle and continuing gradually, deeply and sparsely 

 punctured and highly convex, transversely impressed before apex; 

 remainder of abdomen ovate, with rather strong close punctures 

 above, much closer and finer than those of petiole; seventh ven- 

 tral segment emarginate on each side near apex, or in other words 

 the apical margin is medially produced or lobate; wings subhyaline, 

 fuscous in costal and marginal cells; nervures and stigma blackish 

 brown. Length 9 mm. 



Santarem, November. Two sj^ecimens. From the several 

 allied species known by the female only, these specimens seetn to 

 be distinct, by the head almost as long as broad. In this respect 

 it is allied to E. gracilis, the two standing as connecting links 

 between the species with head at least as broad as long and those 

 with head broader than long. 



2. Second segment either angulate, subangulate or tuber- 

 culate on either or both surfaces. 



Eumenes deforma n. sp. 



?. — Black; clypeus, autennoe except flagellum above, prono- 

 tum, mesopleuriB, both scutella, two large blotches on metathorax, 

 petiole along sides and above anterior to middle, and second seg- 

 ment on both surfaces at sides and apically, rufous; sides of 

 clypeus, spot behind insertion of antennae, in the eye-emargination, 

 posterior orbits above, base of clypeus, posterior margin of pro- 

 notum, spot on each side anteriorly, dot behind tegulse and an 

 apical or subapical band on segments 1-5, yellow', the band on 

 segments 3-5 more or less obscure; apical segments (3-6) testa- 



