514 PROCEEDINGS OF THE ACADEMY OF [1893* 



bright red; head in front and thorax very sparsely clothed with sil- 

 very pubescence ; abdomen also very sparsely clothed with silvery 

 pile; wings subhyaline, nervures black; marginal cell subtruncate; 

 width of the second submarginal cell at the top decidedly greater 

 than that of the third submarginal at the same place. Length 

 9-10 mm. 



Texas; Colorado. A specimen from Georgia which I refer to this 

 species has the dorsulum punctured similarly to T. tarsatus Say. 

 From California there are two specimens, which I at first believed to 

 be distinct, that have the front punctured, the dorsulum rather 

 sparsely punctured and the sculpture of the metanotum bordering on 

 both reticulated and granulated. The male of this California form 

 is as follows: 



$■ — Front coarsely granulated; vertex with fine, rather sparse 

 punctures, the clypeus with fine and close punctures; space between 

 the eyes at top about equal to length of antennal joints 2 to 4 united ; 

 antenna? short and stout, the first joint of the flagellum scarcely 

 one-half shorter than the second; dorsulum with distinct, tolerably 

 strong punctures; metathorax above coarsely granulated or finely 

 reticulated, on the sides and behind distinctly striated; legs feebly 

 spinose; colored like the 9 ; abdomen with distinct silvery pile. 

 Length 7 mm. 



8. — Tachysphex spissatus n, sp. 



$. — Front strongly granulated; vertex finely and closely punc- 

 tured; space between the eyes at top about equal to the length of an- 

 tennal joints 3 and 4 united; clypeus subtruncate, its interior half 

 with coarse punctures; antenna? rather long, distinctly thickened 

 medially, the first joint scarcely greater than one-half the length of 

 the second, which is a little shorter than the third; dorsulum very 

 finely and closely punctured, the scutelluin likewise, and not im- 

 pressed; metathorax above coriaceous, the sides finely and indis- 

 tinctly striated, the posterior face more distinctly so; legs feebly 

 spinose, the emargination of fore femora large and sub-angular ; ab- 

 domen impunctuate, the last dorsal segment with distinct punctures. 

 Black; scape beneath at apex, mandibles in the middle and apical 

 joints of the tarsi obscure red; segments 1-3 of the abdomen bright 

 red; teguhe testaceous; face, front, clypeus and thorax with silvery 

 pubescence ; abdomen with silvery pile ; wings subhyaline, iridescent* 



