HYMENOPTERA. 393 



7. Crabro SIMILLIMUS. 



Female. Length 4-4^ lines. — Black : the scape yellow, the 

 clypeus covered with silvery ))ubesceuce. Thorax : a slightly 

 interrupted yellow line on the collar ; the tubercles, tegulae, tips 

 of the femora, the tibisc and tarsi, ferruginous ; the metathorax 

 rugose, the disk of the thorax finely roughened ; the wings fusco- 

 hyaline. Abdomen : the second segment with a transverse spot 

 on each side in the middle, a similar spot on the fourth segment, 

 and a transverse line on the fifth segment, yellow. 



The male resembles the female, but is remarkable for having 

 the intermediate and posterior tibiae and femora fringed beneath 

 with long white pubescence. 



Hab. Cape of Good Hope. 



This species is closely allied to C. Westermanni, but the uni- 

 formity of colouring in a number of specimens must be regarded 

 as of specific value. 



8. Crabro frater. 



Megapodium frater, Dahlb. Hym. Europ. i. 295. 2. 

 Hab. Cape of Good Hope. 



9. Crabro Gayi. B.M. 



Podagritus Ga)4, Spin. Gay's Chili, vi. 357. 1» Atlas, Zool. t. 2, 

 Hym. f. 6. 6 ff, 6, c$ . 



Hab. Chili. 



The genus Podagritus does not differ from the Rhopalum of 

 Kirby, the latter only varying from the type of the genus Crabro 

 of Fabricius in having the abdomen petiolated ; but in this ex- 

 tensive and eccentric genus every intervening form may be found : 

 the neuration of the wings is the same in the three above-named 

 genera. 



10. Crabro pallipes. 



Phvsoscelis pallipes, St.Farg.Ann. Soc. Ent. Fr. iii. 806. 2(1834)j 



Hym. iii. 209. 2. 

 Rhopalum pallipes, Dahlh. Hym. Europ. i. 294. 



Hab. South America (Montevideo). 



11. Crabro brevinodus. 



Physoscehs brevinodus. Spin. Gay's Chili, vi. 361. 2, Atlas, Hym. 



t. 2. f. 8 $ . 



Hab. Chili. 



