168 KANSAS UNIVERSITY SCIENCE BULLETIN. 



deep; antennae moderate, clothed with silvery pile, joint 2 about one-half 

 of 3, which is somewhat shorter than 4; interocular a little less than joints 

 3 and 4; scutum a little depressed anteriorly mesad, and with quite close, 

 moderate-sized punctures; disc of propodeum evenly granulate, the sides 

 rather strongly striate, the posterior face separated from the disc by an 

 imperfect carina, the face shining, rather coarsely and shallowly striate 

 and with a wide, deep, almond-shaped fovea; legs rather slender, only 

 moderately spinose; venation rather weak, marginal cell not veiy obliquely 

 truncate; abdomen slender, subconie, shining; pygidial area well defined, 

 a little constricted preapically, and with distinct, well-scattered punctures, 

 the pygidium about two times as long as wide at its base. Black; apex of 

 mandibles largely reddish brown ; abdomen all red. Sericeous white pile 

 sparse except on face; abdomen not well fasciate. Length, 7 mm. (type). 



One 2 ; Ness county; July 1, 1912. Six paratypes; length, 5.5- 

 7.25 mm.; southwestern Kansas and Norton county, Kansas. 



The insect appears to be rather closely related to rvheeleri Roh., and 

 resembles crassiformis Vier. in some particulars. It is more slender than 

 the latter and a little more finely punctate. 



Tachysphex crassiformis Vier. 



(Fig. 72, clypeus, g .) 



Tachysphex crassiformis Viereck; Trans. Am. Ent. Soc, XXXII, 210-11; 



1906, 2 ■ 



o . Stout. Anterior margin of clypeus subtruncate, a little pro- 

 duced mesad, with one lateral tooth; antenna not very slender, joint 3 a 

 little shorter than 4 ; interocular space a little more than the length of 

 joints 2 and 3 but less than 3 and 4 ; front finely punctate below, more 

 sparsely so under the fore ocellus; vertex finely and closely punctate; 

 scutum and scutellum polished, with moderately fine separate punc- 

 tures, especially of the sides, pleura finely punctate; disc of propodeum 

 finely and evenly granulate, the sides strongly striate, posterior face 

 distinctly striate, with a deep oval fovea; legs moderately spinose; wing 

 venation not heavy, marginal cell a little obliquely truncate, moderately 

 wide, second submarginal cell just a little wider than the third along the 

 radius; abdomen stout; pygidium fully two times as long as its basal 

 width, the sides a little bowed out and slightly constricted preapically, 

 disc with large sparse punctures. Black; scape at apex and distal tarsi 

 reddish; abdomen reddish. Pile moderate; abdominal fascia moderate. 

 Length, 7 mm. (type). 



Hamilton county, Kansas. Five others, from Stevens, Morton and 

 Stanton counties; July-August, 1911. 



Related to aiitennatHS, according to Viereck. 



Tachysphex crenuloides n. sp. 

 (Fig. 68, clypeus; 105, pygidium, j .) 

 . Robust. Anterior margin of clypeus rounded, rather narrowly 

 but distinctly emarginate mesad, two distinct lateral teeth and a slight 

 indication of a third broader and inner one; a row of coarse, more or less 

 confluent punctures behind the rim of the clypeus, which slopes up from 

 that point, the clypeus shining and almost inpunctate; joint 2 of antenna 



