6~- )%Zi 



238. 



POMPILUS RUFIPES. 



Order Hynienoptera. Fam. Pompilidse Za^., Leach. 



Type of the Genus Pompilus viaticus Fab. 



PoMPiLUS Fab., Lot., Panz., Jur. — Sphex Linn., DeG. — Psammo- 

 charus Lat. 



Antennae inserted between the eyes, below the middle of the face, 

 curved, filiform and 13-jointed in the males (1), basal joint large, 

 2nd minute, the remainder slightly decreasing in length to the 

 end, the terminal joint being subovate j attenuated convoluted 

 at the apex and slightly serrated in the females, 12-jointed, the 

 3rd joint the longest. 



Labrum scarcely exserted, short and broad, anterior margin con- 

 cave, the angles truncated and very pubescent, the front pro- 

 ducing long and rigid bristles (2), 



Mandibles slender, internally concave, pilose on the outside, 2 

 teeth on the inner margin towards the apex, stronger in one 

 than in the other (3). 



MaxillcB broad and much longer than the mentum and lip, ter- 

 minated by 2 lobes, the lower one ciliated, the terminal one 

 large rounded and pilose outside. Palpi very long, 6-jointed, 

 basal joint small, the 3rd the most robust, the others nearly as 

 long, the last the slenderest (5). 



Mentum obovate, producing a few bristles towards the top. Palpi 



long (but shorter than the maxillary), 4-jointed, basal joint the 



longest subclavate, 2nd scarcely so long, 3rd and 4th shorter, of 



equal length, obovate. Labium very short. Paraglossce rather 



longer than the lip, slightly hooked and pilose (5). 



Males much smaller than the females. Head transverse, orbicular. 



Eyes remote. Ocelli 3 in triangle. Thorax oblong ,- postscutellum 



rounded. Abdomen sessile, slender and subfusiform in the males; 



conical robust and armed with a sting in the females. Superior 



wings with 1 marginal and 3 submarginal cells, the stigma nearly 



obsolete. Legs long, first pair the shortest. Thighs of the 1st pair 



attenuated to the apex. Tibiae short and furnished with very lonr^ 



spurs. Tarsi long 5-jointed, basal joint considerably the longest, 4th 



the shortest. Claws somewhat bifid and ciliated internally. Pulvilli 



large (8, afore leg.) 



RuFiPES Linn. Faun. Suec. p. 413. n. 1659. 



Black, with hoary pubescence. Abdomen smooth and naked 

 slightly pubescent only at the base and apex ; the males with 2 

 cream-coloured spots at the base of the 3rd segment ; the females 

 with 2 also at the base of the 2nd, and rarely with one on each 

 side of the 4th ; an apical spot of the same colour. Wings dusky, 

 fuscous at their extremity. Thighs of intermediate legs ferru- 

 ginous at the tips, the posterior legs with the thighs and tibiee 

 bright ferruginous, the former black at the base. Anterior tarsi 

 of the females ciliated externally with long moveable lanceolate 

 bristles. 



In the Author's Cabinet. 



