CLARENCE E. MICKEL 413 



be almost dentiform; beneath the ridge the clypeus is shghtly concave and 

 impunctate; episterna with a spine before the intermediate coxae; enclosure 

 of propodeum transversely rugose; pygidial area about twice as broad as long, 

 narrow at the base, narrowed and truncate at the apex. Wings subhyaline, 

 dark at the apex, stigma brownish. 

 cf . Unknown. 



Type, a female collected at Monroe Canyon, Sioux County, 

 Nebraska, August 4, 1908, (C. H. Gable). Thirty-seven para- 

 types collected at Omaha, Mitchell, Harrison, Glen, and Mon- 

 roe Canyon, Nebraska; visits flowers of Chamaecrista fasciculata, 

 Melilotus alba, Helianthus sp., Solidago sp. and Cleome serrulata; 

 taken from July 13 to August 29. 



Related to rufinoda cruets from which it is distinct by the 

 structure of the clypeus, by the different puncturation of the 

 body, by the spined episterna and by the somewhat differently 

 shaped pygidial area. 



Eucerceris elegans Cresson 



1S79. Eucerceris elegans Cresson, Trans. Anier. Ent. Soc, vii, I'roc. p. 

 xxiii. 



1882. Eucerceris elegans Cresson, Trans. Amer. Ent. Soc, x, Proc. p. vii. 



Two female and two male specimens; collected at Halsey, 

 Nebraska, July 25 to August 29. The female differs from the 

 male as follows; Length 11 to 13 mm. Head, except ocellar 

 space, entirely ferruginous; no yellow on the mesoscutum; middle 

 lobe of clypeus produced so as to form a low, cone-shaped pro- 

 jection; pygidial area about two and one-half times as long as 

 broad, sides slightly convex, truncate at the tip; no fringes of 

 bristles on ventral segments; otherwise similar to the male. 



Subfamily Larrinae 

 Tachysphex granulosus sp. nov. 



1908. Tachysphex tarsatus H. 8. Smith, Univ. Nebr. Studies, viii, \i. 381, 

 (in part), (nee Say). 



9. Length 10 to 11 nun. Rather stout. Anterior n)argin of clypeus 

 slightly rounded out, with a fairly strong lateral tooth, and very slightly 

 emarginate medially; apical half of clypeus polished, shining, with a few scat- 

 tered punctures; basal half with close, deep, separate punctures; antennae 

 normal, not thickened medially, joint two about half as long as joint three, 

 which is about three-fourths as long as four; interocular space at vertex about 

 equal to the combined length of anteimal joints two and three. Front closely 

 and densely punctured, api)earing granulate; the interocular area is punctured 



TRANS. AM. ENT. SOC, XLII. 



