244 HYMENOPTERA. 



1.9. SPHEX CASTANEIPES. 



Sphex castaneipes, Dahlb. Hym. Europ. i. 27. 12 & 438. 

 Bab. Africa. 



20. SPHEX SUBTRUNCATA. 



Sphex subtruncata, Dahlb. Hym. Europ. i. 25. 6. 

 Hab. Africa. 



21. SPHEX GRATIOSA. B.M. 



Male. Length 12 lines. The head, antennae, prothorax, legs 

 and abdomen ferruginous ; the meso- and metathorax black ; 

 the prothorax black beneath ; the mandibles ferruginous, with 

 their tips black ; a quadrate black spot on the vertex enclosing 

 the ocelli ; the enclosed portion of the metathorax transversely 

 and finely striated, the apical portion of the metathorax trans- 

 versely sulcated ; the wings dark fuscous with a violet iridescence, 

 the tegulse ferruginous ; the petiole and extreme base of the ab- 

 domen black : beneath, the second segment has a large fuscous 

 spot at the base. 



Hab. Tripoli. 



22. SPHEX NIGRITA. 



Sphex nigrita, Lucas, Explo. Sc. Alger. iii. 2/1. 

 Hab. Algeria. 



23. SPHEX AFFINIS. 



Sphex affinis, Lucas, Explo. Sc. Alger. iii. 272. 

 Hab. Algeria. 



24. SPHEX AFRA. B.M. 



Sphex afra, St. Farg. Hym. iii. 350. 24. t. 30. f . 3 $ . 

 Lucas, Explo. Sc. Alger. iii. 270. t. 14. f. 3. 



Hab. Algeria (Oran). 



25. SPHEX TRICHARGYRA. 



Sphex trichargyra, Spin. Ann. Soc. Ent. Fr. vii. 466. 11 (1838). 

 Hab. Egypt. 



This is probably a highly coloured example of Priononyx albi- 

 secta, or certainly a closely allied species. 



