no. 1837. NEW SPECIES OE WASPS— ROHWER. 579 



narrow, acute at apex, very sparsely punctured. Black; mouth 

 parts and tegulae pale brown; two basal segments of the abdomen, 

 with the exception of a spot on the second, red. (Undoubted speci- 

 mens will be found with the abdomen entirely black.) Wings dusky 

 hyaline, iridescent; venation brown; clypeus and front with close 

 silvery pile; thorax and abdomen in certain lights with close silvery 

 pile. 



Lee County, Texas. Collected May 8, 1906, bv Rev. G. Birkmann. 



Type.— Cat. No. 13760, U.S.N.M. 



The space between the eyes at the vertex would place this species 

 in the tarsatus group, but it is not any of these being nearest to punc- 

 tulatus, from which it may be distinguished by the different sculp- 

 ture, the fourth antennal joint not longer than the third, and other 

 characters. It has some resemblance, in general habitus, and in the 

 inner calcarium of the posterior tibiae being a little longer than the 

 basitarsus, to mundus Fox; but that species has the posterior face of 

 metathorax transversely striated, the dorsulum and scutellum punc- 

 tured and the eyes are closer together at the vertex. It is also some- 

 what like consimilis Fox, but the sculpture of the thorax and distinct 

 pubescence on the abdomen will distinguish it from this species. 



TACHYSPHEX WHEELERI, new species. 



Female. — Length a little over 5 mm. Anterior margin of the 

 clypeus rounded out, with two small, distinct lateral teeth, basal 

 portion finely granular; front finely granular, vertex finely punc- 

 tured; depression behind lateral ocelli rather deep, parted by a 

 furrow; interocellar area by a deep furrow, which extends to be- 

 tween the bases of the antennas, but is not as strong below the 

 anterior ocellus; distance between the eyes at the vertex about 

 the same as the length of the antennal joints two and three; antennas 

 normal, third joint a little shorter than the fourth, mesonotum 

 and scutellum finely punctured, the punctures of the scutellum a 

 little more separated than those of the mesonotum, scutellum not 

 impressed; dorsal aspect of propodeum finely granular, without an 

 impressed line; sides finely striato-granular ; posterior face separated 

 from the dorsal aspect by a carina, which is broken in the middle 

 by the upper part of the triangular-shaped fovea, transversely 

 striated; radial cell obliquely truncate, second cubital cell wider 

 on the radius than third; legs feebly spinose, spines feeble and 

 pallid; abdomen shining, apparently impunctate; pygidium well 

 defined for species of this group, with large well separated punc- 

 tures, acute at apex, and a little more than twice as long as broad 

 at base. Black; palpi and tegulse brownish; apex of mandibles 

 piceous; abdomen clear red; usual silvery facial pubescence; thorax 

 and abdomen in certain lights, with silvery pile. 



