212 hymenoptera. 



24. Ammophila ferrugineipes. B.M. 



Ammophila ferrugineipes, St. Farg. Hym. iii. 383. 24. 



Hab. Cape of Good Hope; Port Natal; Sierra Leone; the 

 Gambia. 



Specimens of this species, received from Port Natal and Sierra 

 Leone, have the petiole black above, as well as the posterior 

 femora, the prothorax being entirely red, smooth and shining. 

 Of an extensive series from the Gambia, some have the sides of 

 the thorax more or less ferruginous; others have the thorax 

 black, with the exception of a red spot on the collar ; but several 

 have the thorax entirely black, and the tai'si, as well as the pos- 

 terior legs, fuscous. 



25. Ammophila rugicollis. 



Ammophila rugicollis, St. Farg. Hym. iii. 373. 14. 

 Hub. Cape of Good Hope. 



26. Ammophila rubiginosa. 



Ammophila rubiginosa, St. Farg. Hym. iii. 372. 12. 

 Hab. Cape of Good Hope. (Coll. F. Smith.) 



27. Ammophila Bon^-Spei. B.M. 



Ammophila Bonse-Spei, St. Farg. Hym. iii. 382. 23. 

 Lucas, Explo. Sc. Alger, iii. 276. 



Hab. Cape of Good Hope. 



28. Ammophila tenuis. B.M. 

 Sphex tenuis. Pal. de Beauv. Ins. p. 48. t. 7- f- 2. 



Hab. Sierra Leone. 



29. Ammophila Ludovicus. 



Female. Length 15 lines. — Black : the clypeus anteriorly 

 and the mandibles ferruginous, the latter black at their apex ; 

 the face thinly covered with silvery pile, and having a number of 

 shoi't, scattered, stiff black hairs. Thorax rugose ; the meso- 

 thorax posteriorly, the scutellum and post-scntellum longitudi- 

 nally striated ; the enclosed portion of the raetathorax coarsely 

 rugose, but having on each side a small space transversely stri- 

 ated ; the tubercles and a spot on each side of the metathorax, 

 at the insertion of the petiole, covered with silvery pile; the 



