444 Mr. F. Smith on new Species 



and tarsi slightly, and the intermediate and posterior pairs very 

 spinose. 



Hah. Santarem. 



Pompilus defectus. 



Male. Length 5^ lines. Black, abdomen partly red, and 

 with dark fuscous wings. The face with a covering of silvery 

 pile ; the clypeus widely truncate, the lateral angles rounded, 

 and having a brownish pile. The posterior margin of the 

 prothorax arcuate and with a yellow border, somewhat obscure ; 

 the metathorax smooth, covered with brownish pile, and of a 

 blue tinge in certain lights ; the wings slightly iridescent in 

 some positions. Abdomen : the three basal segments ferru- 

 ginous, and the basal margin of the fourth narrowly so ; the 

 four apical segments with a thin cinereous pile. 



Hab. Santarem. 



Pompilus vitabilis. 



Female. Length 5 lines. Head and thorax black, the 

 abdomen blue-black ; the wings dark fuscous, with a splendid 

 violet iridescence, which varies to purple in certain lights. 

 The face covered with silvery pile ; the anterior margin of the 

 cl}'peus sinuated ; the apex of the mandibles ferruginous. 

 Thorax : above, in certain lights, with more or less of a blue 

 tinge, particularly the metathorax, which is smooth and opaque. 

 Abdomen subpetiolate ; the apical portion of the fourth segment, 

 and the fifth and sixth and seventh entirely, covered with a 

 thin cinereous pubescence ; the abdomen beneath, as well as 

 the coxfe and femora, covered with a changeable silvery pile. 



Hah. Para. 



Pompilus exclusus. 



Male. Length 5^ lines. Blue, with green tints in certain 

 lights ; wings dark fuscous ; antennaj, mandibles, and clypeus 

 black, the latter widely truncate. Tlie posterior margin of 

 the prothorax angulate ; the metathorax smooth and rounded 

 posteriorly ; the wings have a violet and purple iridescence ; 

 the first submarginal cell as long as the two following ; the 

 second cell subquadi-ate, receiving the recurrent nervure near 

 its apex ; the third submarginal cell much restricted towards 

 the marginal cell, xibdomen of a bright blue-green. 



Hab. Para. 



Pompilus iratus. 

 Male. Length 4| lines. Head and thorax black, witli yellow 



