252 HYMENOPTERA. 



The male exactly corresponds with the female, but is usually 

 smaller. 



Hab. Van Piemen's Land. 



This species has the appearance of a Priononyx, but the claws 

 are only furnished with two teeth. 



50. SPHEX ANTENNATA. B.M. 

 Male. Length 8 lines. Black : the face has a silvery pubes- 

 cence and a mixture of long black hairs ; the mandibles ferrugi- 

 nous towards their apex. The thorax has a scattered yellow 

 pubescence; the mesothorax and scutellum evenly punctured, 

 the former with a central abbreviated channel in front and a 

 slight scratch over each tegula ; the wings fuscous, the iiervures 

 black ; the petiole short, the abdomen oblong-ovate. 



Hab. New Hebrides (Aneiteum). 



The specimen described is not in good condition, being evi- 

 dently denuded of pubescence ; but it may be distinguished by 

 the form of its antennae, which are very slender at the base and 

 gradually thickened towards the apex. 



51. SPHEX RUFIPENMS. B.M. 



Sphex rufipennis, Fabr. Ent. Syst. ii. 201. 10. 



St. Farg. fy Sen. Encycl. Mcth. x. 462. 



St. Farg. Hym. iii. 334. 1. 



Dahlb. Hym. Europ. i. 436. 6. 

 Pepsis rufipennis, Fabr. Syst. Piez. 210. 12. 



Hab. India? (Fabr. I.e.}. Brazil. 



Although several extensive collections have been examined, 

 no species from India has been found agreeing with the descrip- 

 tion of S. rufipennis, but most collections contain Brazilian spe- 

 cies which do agree with it; it is therefore probable that the 

 habitat given by Fabricius Tranquebar is an error, and it is 

 rendered more so from the circumstance of the typical specimen 

 being in the collection of Lund, who collected in Brazil. 



52. SPHEX ARGENTATA. B.M. 



Sphex argentata, Dahlb. Hym. Europ. i. 25. 1. 

 Sphex albifrons, St. Farg. Hym. iii. 337. 6 <J . 

 Sphex argentifrons, St. Farg. Hym. iii. 337. 7 + - 



Hab. Greece; India (Bengal ; Madras; Punjaub; Sumatra); 

 Java; N. America (St. John's Bluff, East Florida) ; Africa 

 (Congo; Sierra Leone). 



