WILLIAMS: LARRID^ OF KANSAS. 155 



Tachytes rufofasciatus Cress. 



(Fig. 53, clypeus, j .) 



Tachytes, rufo-fasciata Cresson; Trans. Am. Ent. Soc, IV, 217-18; 

 1872. ^. 



Tachytes rufofasciaius Fox; Trans. Am. Ent. Soc, XIX, 247-8; 



1892. ^ 5 . 



o . Rather slender to moderately stout. Clypeus rounded out an- 

 teriorly, a little emarginate mesad and bidentate laterally; joint 3 of 

 antenna longer than 4 (subequal in some slender specimens) ; vertex 

 and thorax finely and closely punctate; scutellum not impressed; disc 

 of propodeum with shallow, indistinct punctures, subapical fovea rather 

 shallow, the sulcus on the posterior face deep ; spines on posterior tibia 

 not stout; abdomen sometimes rather long; pygidium a little con- 

 stricted before the apex, the pile fine and dense. Black; wings nearly 

 clear; apical portion of legs more or less reddish, spines pale; abdomen 

 vaiying from entirely to scarcely at all ferruginous, the ferruginous 

 commencing from the base as in fulviveiitris; pygidium bright golden. 

 Pubescence of head and thorax whitish or nearly so, the erect hair 

 sparce; abdominal fascia golden. Length, 11-1.5 mm. 



J . Clypeus rather narrowly produced; eighth ventral segment 

 broadly emarginate; apex of trochanters, all the tibiae and tarsi ferru- 

 ginous; apex of segments 1 and 2 of abdomen ferruginous or testaceous. 

 Length, 11-15 mm. 



The identification of these few Kansas specimens is somewhat doubt- 

 ful. One, a J , is quite small, and here the clypeus is not emarginate 

 as in the larger specimens. This small one is from Morton county; 

 the others, which are stouter as well as larger, were taken in the north- 

 ern part of the state. The f t hail from Texas. 



Tachytes fulviventns Cress. 



(Fig. 53a, clypeus. ^ ; 42, antenna, ^ .) 



Tachytes fidviventris Cresson; Proc. Ent. Soc. Phil., IV, 466; 1865: j . 

 Tachytes cselebs Patton; Bull. U. S. Geol. Surv., V, 355. ^ . 

 Tachytes fvlviventris Fox; Trans. Am. Ent. Soc, XIX, 243; 1892. j ^ . 

 g . Stout, a little less so than pepticus. Clypeus broadly produced 

 anteriorly, the two lateral teeth obscure or prominent; third joint of 

 antenna longer than fourth; vertex finely punctate, scutum likewise; 

 scutellum not impressed; disc of propodeum without an impressed line, 

 subapical furrow shallow but distinct and transversely striate, a strong 

 sulcus on posterior face; spines on posterior tibia moderately stout; 

 abdomen hardly broadened; pygidium convex, the sides nearly straight, 

 covered with fine pile. Black; mandibles slightly reddish mesad, last 

 four tarsal joints I'eddish; wings hyaline, venation pale brown; seg- 

 ments 1-3 of abdomen reddish, pygidial area with black and bronzy pile. 

 Appressed pile pale golden to whitish, the rather dense, erect pubescence 

 pale griseous; abdomen with three silvery fascia. Length, 12-17 mm. 



