HYMENOPTERA. 151 



the third submarginal cells ; the thorax covered with a fine silvery 

 pile, the posterior margin of the prothorax white. The abdomen 

 petiolate, compressed, much narrower than the thorax, the second 

 segment white at its base above, having a narrow white stripe 

 on each side beneath, the basal margins of both segments are 

 broadly white ; a white spot at the apex of the abdomen, which 

 is acute. 



Hab. Brazil (Santarem). (Coll. H. W. Bates.) 



This species has very much the appearance of an Ichneumon. 



155. POMPILUS ICHNEUMONEUS. 



Pompilus ichneumoneus, Guer. Voy. Coq. Zool. pt. 2. p. 258 ; 

 Atlas, Ins. no. 8. f. 13. 



Hab. Brazil. 



156. POMPILUS LUTEICORNIS. B.M. 

 Calicurgus luteicornis, St. Farg. Hym. iii. 404. 



Hab. Brazil. 



157. POMPILUS MICANS. B.M. 



Pompilus micans, Fabr. Syst. Piez. p. 192. 23. 

 Agenia micans, Dahlb. Hym. Europ. i. 455. 2, <5r type sp. Mus. 

 Kiel. 



Hab. South America ; Brazil (Santarem and Para). 



158. POMPILUS PECTORALIS. B.M. 



Female. Length 9 lines. Head and thorax black, densely 

 clothed with a changeable velvety pubescence, partaking of shades 

 of purple, violet and blue ; anterior margin of the clypeus widely 

 emarginate ; wings dark fuscous, with a brilliant violet iri- 

 descence; the metathorax rounded, not channeled down the 

 middle; the pectus broad, transverse posteriorly, the lateral 

 angles acute ; tibiae slightly spinose. Abdomen subpetiolate, iri- 

 descent blue, black at the base. 



Hab. Brazil (Para). (Coll. H. W. Bates.) 



159. POMPILUS PHALERATUS. 



Pompilus phaleratus, Perty, Del An. Art. p. 143. t. 27. f. 20. 

 Hab. Brazil (Rio. Amazons). 



