62 Mr. r. D. A. Cockevell — Descriptions and 



localities may sliow that patruelis is a subspecies of suphite. 

 The male of S. patruelis is described at the place cited 

 above ; it may be useful to add that there are five hooks on 

 the hind wing. 



Sphecodes hyalinatus, Schenk. 



One male ; "Wangen, Baden, Aug. 5 [Cockerell). Hind 

 wing with six hooks. 



Sphecodes trentonensis, sp. n. 



$ . — Length about 5^ mm.^ expanse 9J. 



Head and thorax black ; abdomen shining rather light 

 ferruginous red, tlie fourth segment except at base, and the 

 fifth, suffusedly blackish ; flagellum obscui-e reddish be- 

 neath ; mandibles red, bidentate ; face thinly clothed with 

 white hair; clypeus sparsely but distinctly punctured; 

 front very densely punctate, but shining; mesothorax 

 shining;, sparsely punctured, a slight median sulcus; area of 

 metathorax shiuing, coarsely and strongly reticulated ; 

 tegulae rufo-testaceous. Wings dilute brownish, stigma and 

 nervures rufo-fuscous ; second s.m. narrow, receiving first 

 r. n. at beginning of last third; five costal hooks on hind 

 wing ; tibiae and tarsi obscure reddish. Abdomen smooth 

 and shining, with hardly any hair except at apex ; first 

 segment apparently impunctare, but the compound micro- 

 scope shows extremely minute very widely scattered punc- 

 tures ; second segment at base with very few punctures, 

 these extreuielv minute. 



Hah. Trenton Falls, N.Y. {R. Foster). From F. Smith's 

 collection ; British Museum. 



In Robertson's tables (Cntom. News, April 1903) this 

 runs nearest to S. cressonii (Rob.), but the mesothorax is 

 much less densely punctured than in a specimen of that 

 species received from Robertson. The same character 

 separates it from S. mandibularis, Cresson, which has been 

 considered identical with cressonii. I have what I consider 

 to be true mandibularis from Lincoln, Nebraska, April 

 {L. Bruner) ; it dift'ers a little in the metathorax from 

 cressonii and is possibly separable. Both cressonii and 

 mandibularis have the abdomen more hairy than in trenton- 

 ensis. From S. heterus, Lovell, trentonensis is separated by 

 the brownish wings and other characters ; from S.fragariee, 

 Ckll., by the red mandibles, lighter tegulae, and colora- 

 tion of abdomen ; from S. eustictus, Ckll., by the smooth 



