1869.] 367 [Cresson. 



Hob. — Orizaba. (Prof. F. Sumichrast.) Eiglit ? , four 6 speci- 

 mens. These specimens vary from blue to green, therefore rendering 

 cubensis a mere variety, there being no structural difference of any 

 importance. 



2. Pompilus sethiops. 



Pompilus CEthlops Cresson, Proc. Ent. Soc. Phil., iv, p. 451; Trans. 



Amer. Ent. Soc, i, p. 87. 

 Hob. — Orizaba. (Prof F. Sumichrast.) One S specimen. Does 

 not differ from specimens found in the United States. 



3. Pompilus lepidus. 



Pompilus lepidus Say, Bost. Jour. Nat. Hist., i, p. 303. Cresson, 

 Trans. Am. Ent. Soc, i, p. 94. 



Hah. — Orizaba. (Prof F. Sumichrast.) Four ? , four i speci- 

 mens. This is very near scelestus Cress., but the^^ males differ from 

 those of the latter species by having the tarsal claws cleft, and the 

 third marginal cell is much narrowed towards the marginal. 



4. Pompilus fulgidus. 



Pompilus fulgidus Cresson, Proc. Ent. Soc. Phil., iv, p. 131; Trans. 



Am. Ent. Soc, i, p. 94. 

 Hah. — Orizaba. (Prof F Sumichrast.) Two ? specimens. 



5. Pompilus simulans, u. sp. 



$. Same form as cyUndricus\ black, faintly bluish ; head, thorax, 

 base and a|3ex of abdomen with thin black pubescence, thickest on 

 the face; face and tip of metathorax silvery in certain lights; sides 

 of thorax and base of legs silvery-sericeous ; anterior margin of clypeus 

 truncate; posterior margin of prothorax angular; metathoi'ax smooth 

 and rounded; wings long, narrow; fuscous, varied with subhyaline 

 spots, and with a beautiful purple reflection; second submarginal cell 

 obliquely quadrate, the third much narrowed towards marginal, being 

 sometimes neai'ly triangular; four posterior tibiro with long, scattered, 

 spines; abdomen subcylindrical, shaped much as in cijUndricus. 

 Length four to four and one fourth lines. 



Hab. — Orizaba. (Prof F. Sumichrast. Coll. Am. Ent. Soc.) Four 

 <5 specimens. Larger than cylindricus, with same form of body, but 

 with longer wings, which have differently shaped submarginal cells. 



6. Pompilus novellus, n. sp. 



?. Black, subpruinose, having a thin sericeous silvery pile, more 

 obvious on face, sides of thorax and base of legs; anterior margin of 

 clypeus truncate; antennfe brown, paler beneath, black at base and 

 apex; posterior margin of mesothorax arcuate; metathorax finely 



