Cresson.] 374 [March 24, 



26. Pompilus nubifer, n. sp. 



?. Black, shining; head and thorax clothed with golden pile, 

 silvery on sides and apex of metathorax; anterior margin of clypeus 

 (which is truncate), mandibles, palpi, four or five basal joints of an- 

 tennae, lateral margin of prothorax, tegulae, and the anterior legs, 

 except trochanters and tarsi, bright feiTuginous; posterior margin of 

 prothorax subangular; metathorax smooth and rounded; wings hya- 

 line, anterior pair with a narrow, even, central, fuliginous fascia, and 

 a broad one between it and the apex, covering the marginal cell 

 except tip, the second and third submarginals, and a portion beneath; 

 apex of wing white; legs silvery sericeous, tarsi brownish; abdomen 

 ovate, smooth and shining, subpruinose, the apex with blackish 

 pubescence. Length three and one half lines. 



Hah. — Orizaba. (Prof. Sumichrast. Coll. Am. Ent. Soc.) Thi'ee 

 ? specimens. 



27. Pompilus levipes, n. sp. 



3 . SmaU, slender, black, opaque, clothed with a silvery sericeous 

 pile, brightest on face, sides of thorax, of metathorax, and on coxae; 

 face short; clypeus very transverse, truncate at apex; mandibles 

 piceous; antennfe short, entirely black ; posterior margin of protho- 

 rax arcuate ; scutellum prominent ; metathorax rounded, smooth, 

 opaque, sides and apex bright silvery ; tegulte piceous ; wings hyaline, 

 apex dusky, marginal cell sublanceolate, acute at tip, second sub- 

 marginal subconical, pointed towards base of wing, the third submar- 

 ginal nearly quadrate, receiving the second recurrent nervure in the 

 middle; legs long and slender, silvery sericeous, anterior tibi* palish 

 in front, posterior tarsi very long; abdomen small, elongate ovate, 

 shining, silvery sericeous. Length three Hues. 



Hah. — Orizaba. (Prof. Sumichrast. Coll. Am. Ent. Soc.) Two 

 S specimens. Closely allied to iridipennis Ci'esson. 



28. Pompilus calcaratus. 



Pompilus calcaratus Cresson, Trans. Am. Ent. Soc, i, p. 128. 



Variety accolens. 6 . Body more obviously silvery sericeous ; 

 legs black, the anterior tibite and tarsi palish in front, tips of interme- 

 diate femora, posterior pair except base, and sometimes base of their 

 tibias, red; calcaria very white. Length three lines. 



Hah. — Orizaba. (Prof. Sumichrast. Coll. Am. Ent. Soc.) Two 

 i specimens. 



29. Pompilus Sumichrastii, n. sp. 



? . Head black, opaque ; anterior orbits, uneven, posterior orbits, 



