HYMENOPTERA. 



265 



3. HARPACTOPUS s^vus. B.M. 

 Female. Length 8-11 lines. Black : the face densely covered 



with bright silvery pubescence ; the clypeus sprinkled with stiff 

 black bristly hairs ; the vertex and cheeks have a thin cinereous 

 pubescence. The pro- and mesothorax covered with pale golden 

 pubescence; the metathorax transversely rugose; the wings 

 hyaline, with more or less of a yellow tinge, their apical margins 

 slightly clouded; the nervures pale rufo-testaceous ; the tarsi 

 thickly spined, the anterior pair strongly ciliated outside. Ab- 

 domen subglobose, very convex, with the petiole a little longer 

 than the first segment. 



The male only differs in being smaller and more pubescent. 



Hab. Australia (Swan River; Cape Upstart). 



4. HARPACTOPUS xivosus. B.M. 

 Female. Length 10-13 lines. Ferruginous : the head, tips 



of the mandibles and flagellum black ; the head, thorax, coxa; 

 and base of the femora densely clothed with snow-white short 

 silky pubescence ; the other parts of the legs have a thin white 

 pile ; the spines at the apex of the tibiae black, those on the 

 tibiae and tarsi are a mixture of black and red ones ; the wings 

 hyaline, the nervures fusco-ferruginous, the tegulae ferruginous; 

 the post-scutellum with a slightly raised tubercle in the middle. 

 Abdomen : the petiole and first segment covered with snow- 

 white pubescence ; the apical margins of the segments pale rufo- 

 testaceous. 



Hab. Northern India. 



Genus 1:2. PRIOXONYX. 



Sphex, pt., Fabr. Ent. Syst. ii. 198 (1/93). 

 Pepsis, pt., Fabr. Syst. Piez. 207 (1804). 

 Priononyx, Dahlb. Hym. Europ. i. 28 (1843). / 



This genus differs from the genus Sphex in having the claws 

 quadridentate beneath at their base ; the ueuration of the wings 

 and the form of the abdomen are the same as in Harpactopus. 



1. PRIONONYX THOM^. B.M. 



Sphex Thomse, Fabr. Ent. Syst. ii. 199. 4. 

 Pepsis Thomas, Fabr. Syst. Piez. 209. 5. 

 Priononyx Thomas, Dahlb. Hym. Europ. i. 28. 1. 



Hab. South America; Island of St. Thomas; Jamaica; Brazil 

 (Santarem); South Carolina ; East Florida. 



