164 KANSAS UNIVERSITY SCIENCE BULLETIN. 



Tachysphex belfragei (Cress.). 

 (Fig. 66, clypeus, (j .) 

 Larrada belfragei Cresson; Trans. Am. Ent. Soc, IV, 215; 1872. q . 



o . Medium stout. Anterior margin of clypeus well rounded out, and 

 with a narrow mesal emargination and two lateral teeth; joint 3 of 

 antenna slightly shorter than 4, the interocular space equal to 2 and 3 or 

 perhaps a little less; front and vertex very finely and closely punctate, 

 scutum likewise; disc of propodeum strongly reticulate, the sides finely 

 and the posterior face coarsely striate, the posterior fovea acute beneath 

 and broad above; marginal cell rounded-truncate; pygidial area moder- 

 ately well punctate, a little constricted preapically, about two and one- 

 fourth times or less as long as broad at base. Black; spot on scape at tip, 

 apex of femora, the tibiae and tarsi, reddish; venation testaceous; seg- 

 ments 1, 2 and 3 more or less, and the apex of pygidium, reddish. Moder- 

 ate silvery pubescent. Length, 9-10 mm. 



A single j ; Ellis county; July 19, 1912. 



Tachysphex robustior n. sp. 



T . Quite stout. Anterior margin of clypeus rather narrowly sub- 

 truncate, the lateral angles sharp ; clypeus with large separate punctures , 

 antennse but little thickened mesad, joint 2 nearly two-thirds of 3, which 

 is shorter than 4; interocular space very little less than joints 3 and 4; 

 front with shallow punctures and very finely reticulate; ocellar space 

 deeply and separately punctate, the vertex finely punctate; postocellar pit 

 not very deep; dorsum of thorax very finely and closely punctate, the sides 

 indistinctly and shallowly so; disc of propodeum very finely granulate, 

 apically broadly subtruncate, sides with fine shallow punctures, posterior 

 face striate, with a rather smooth fovea; legs moderately spinose, longer 

 spur of metatibiae a little longer than first joint of hind tarsi ; wings large, 

 venation delicate, marginal cell narrowly subtruncate, the appendiculation 

 weak, the second and third submarginal cells subequal along the radius; 

 abdomen short and stout, with fine, shallow punctations for the reception 

 of the pile; eighth ventral segment broadly emirginate, no median tooth. 

 Black; tarsi reddish brown; venation testaceous; abdominil segments 1 

 and 2 reddish, the latter obscurely so; the rest of the abdomen is not deep 

 black. Frons with dense, silvery pile which extends up to the ocelli; the 

 thorax, legs and abdomen with a good amount of silvery pile (t'.ie ab- 

 domen being fasciate with silvery) ; pile of the dorsum of the thorax with 

 a pale brassy-yellow tinge. Length, 5.75 mm. 

 One ^ ; Grant county; July, 1911. 



Tachysphex consimilis Cress. 

 Tachysphex consimilis Fox; Proc. Acad. Nat. Sci. Phil., 526-7, 1893. t c 

 A single ^ from Norton county is doubtfully referred here. 



Tachysphex consimiloides n. sp. 



2 . Moderately stout. Anterior margin of clypeus broidly but nol 



strongly rounded out (subtruncate), the lateral angles not very sharp, nc 



teeth, apical half spirsely and irregularly Hrge punctate, the lenainde. 



vei'y closely punctate; antennse slender, joint 2 is one-half of 3, which is 



