226 AMERICAN HYMENOPTERA. 



C'ainerotop<<i aineric»nii<« Ashm. {Neurafelns). Tr. A. E. S. xxiii. 203. 



9. — 3 mm. Black, with basal portion of abdomen, antennee and mouth-ijarts 

 piceous; legs paler, with brownish portions: wings hyaline, nervures pale, areolet 

 wanting; metathorax without distinct carinse. and with basal segment of abdo- 

 men and base of second segment strongly shagreened and slightly aciculate ; 

 abdomen strongly compressed from apex of second segment. 



One specimen from Maryland (coll. Ashmead). 



C'aiuerotop»$ asperus n. sp. 



9 . — 3 m>n. Black, with lower half of face, basal portion of antennae beneath 

 and legs, bright honey-yellow ; middle portion of abdomen piceous to rufous, 

 with second and third segments yellow at apex ; palpi, tegulge and venter white ; 

 antennae piceous-brown ; wings hyaline, nervures and stigma pale brown, areolet 

 wanting : carinse on metathorax distinct, the apical transverse one being very 

 broad and shelving; abdomen compressed toward apex: three basal segments 

 shagreened, opaquely so. basal segment with distinct carinse. 



One specimen from Algonquin, 111. (^Dr. Nason). Type, coll. G. 



C. D. 



Cainerotops preinitus n. sp. 



% . — 3 mm. Black, with transverse portion of face beneath antennae., scape, 

 base of antennae beneath, apex of clypeus, mandibles and anterior coxae and tro- 

 chanters, brownish yellow; remainder of legs ferruginous: palpi and tegulae 

 white; face and antenna" reddish brown; wings hyaline, nervures and stigma 

 pale brown ; areolet wanting; metathorax polished and areolated, basal and mid- 

 dle areas united ; carinae distinct, basal segment of abdomen finely scabrous, 

 carinate ; second segment closely punctured, compressed on apical portion; re- 

 maining segments polished, strongly compressed. 



One specimen from Michigan, taken July 18th, in woods. Type, 

 coll. G. C. D. 



Caiiierofops ulinicola Ashm. (Neuratelus), Tr. A. E. S. xxiii, 203. 9- 



Brephoc(oni(s flavosHS Ashm., ibid. 202, %. 

 Neuratelus Uriodendri Ashm., ibid. 203. % 9 • 



9.-2.5 imm. Vertex, occiput, metathorax and base and apex of abdomen 

 black ; rest of body varies from dark honey -yellow to piceous ; legs and base of 

 antennae pale honey-yellow; palpi ajid tegulae white; wings hyaline, nervures 

 and stigma ]iale brown, areolet wanting ; metathorax finely shagreened and with 

 distinct carinae ; abdomen polished, strongly compressed on apical half; two basal 

 segments finely and rather irregularly longitudinally aciculate. 



'^ . — Differs in being smaller, the abdomen not distinctly compressed, and in 

 having the pale parts increased in proportions and pale yellow instead of reddish. 



Four specimens from Columbus, Ohio; Washington, D. C. ; and 

 Jacksonville, Fla. Described from the types of the above species 

 in coll. Ashmead. 



