152 HYMENOPTERA. 



160. POMPILUS POLISTOIDES. B.M. 



Female. Length 6 lines. — Head yellow: a transverse black 

 line crosses the vertex immediately behind the posterior ocelli 

 and passes over the vertex of the eyes ; a black line runs from 

 each posterior ocellus to the base of each antenna, which is ful- 

 vous, the scape being yellow in front, and five or six of the apical 

 joints fuscous. The prothorax, sides of the thorax, and also 

 the coxae beneath, yellow ; the legs fulvous, varied with yellow, 

 strongly spinose ; the mesothorax black, having two longitudinal 

 yellow stripes ; the scutellum brov»'n-black, with a large half- 

 circular yellow spot on each side ; the metathorax reddish-yellow, 

 the basal margin black, having a central broad black stripe, not 

 extending to the apex, and a mvich shorter one on each side ; 

 wings hyaline, the superior pair having a broad fuscous cloud on 

 their anterior margin. Abdomen reddish-yellow, the basal mar- 

 gins of the segments yellow and covered with a white pile ; be- 

 neath yellow. 



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



The resemblance of this insect to a PoUstes is so great, that 

 it may at first sight be easily mistaken for a species of that 

 genus. 



161. POMPILUS REGIUS. B.M. 



Pompilus regius, Fabr. Syst. Piez. p. 199. 58. 

 Anoplius regius, St. Farg. Hym. iii. 450. 14. 



Hab. Brazil (Para). 



162, Pompilus semicinctus. 



Pompilus semicinctus, Dahlb. Hym. Europ. i. 61. 

 Hab. Brazil. 



163. Pompilus turcicus. B.M. 



Sphex turcica, Fabr.Ent. Syst. ii. 216. 7G. 



Pompilus turcicus, Fabr. Syst. Piez. p. 197- 47, and type in 



Mus. Dom. Banks. 

 Pompilus rufiventris, Guer. Voy. Coq. Zool. pt. 2. p. 260. 



Hab. Brazil. 



M. Guerin was misled by the description of Fabricius in the 

 Syst. Piez. : having examined the type, we correct that por- 

 tion which appears to be necessary : — Black : the posterior mar- 

 gin of the prothorax yellow ; the face, scutellum, sides of the 



