578 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40. 



TACHYSPHEX SPHECODOIDES, new species. 



Female. — Length about 7 mm. Median part of clypeus margined 

 anteriorly, the lateral angles sharp, with a short, obtuse median tooth; 

 basal portion of the clypeus convex, densely punctured; front with 

 large separate punctures, vertex more sparsely punctured than the 

 front; furrow from anterior ocellus distinct; occiput flat a little lower 

 than the eyes; distance between the eyes at the vertex about the 

 same as the length of the antennal joints three and four; third and 

 fourth antennal joints about equal; anterior third of the mesonotum 

 finely, closely punctured, the posterior part shining, sparsely punc- 

 tured; scutellum convex shining, punctured like the posterior part 

 of the mesonotum; mesonotum finely, closely punctured; dorsal 

 aspect of propodeum finely granular, at the base there are a number 

 of short longitudinal carinae, the middle one the longest; sides finely 

 striated, near the top the striae are broader and more distinct; poste- 

 rior face shining, finely transversely striate; fovea very well defined, 

 pointed beneath; second and third cubital cells about equal on the 

 radius; abdomen shining, impunctate; pygidium not well defined, 

 smooth, almost without punctures' about twice as long as wide at 

 base. Black; tegulae on the outer margins ferruginous; eyes (dry) 

 dark green; mandibles at apex and two apical joints of tarsi dark 

 rufous; abdomen clear red. Wings clear hyaline, iridescent; vena- 

 tion brown; face, clypeus, pleurae, small patches on sides of abdomen 

 and the anterior femora beneath with silvery pubescence; antennae 

 clothed with fine white pile. 



Rocky Ford, Colorado. One female collected May 12, 1905. Col- 

 lector unknown. 



Type. — Colorado Agricultural College. 



A very distinct species, perhaps most closely related to T. punctula- 

 tus H. S. Smith, but the sculpture of the mesonotum and propodeum, 

 and the clearer wings, will easily separate it from that species. 



TACHYSPHEX LEENSIS, new species. 



Female. — Length about 7 mm. Anterior margin of the clypeus 

 rounded, the middle broadly produced, the angles evident but not 

 sharp ; anterior part of the clypeus shining, with large separate punc- 

 tures, the sculpture of the basal part not clearly seen on account of 

 the pubescence; head opaque, very finely granular; space between 

 the eyes at the vertex a little greater than the length of the antennal 

 joints two and three; third and fourth antennal joints about equal; 

 entire thorax very finely granular; scutellum not impressed; pos- 

 terior face with an oval-shaped fovea ; radial cell obliquely truncated ; 

 third cubital cell wider on the radius than the second; legs feebly 

 spined, spines feeble and pallid; tarsal bristles long; piceous; abdo- 

 men subopaque, microscopically punctured; pygidium well defined, 



