404 HYMENOPTERA. 



in curve, and the mandibles not notched at the base ; but the 

 latter character is common to many species of other divisions of 

 the genus : an examination of a large number of species from 

 other countries shows that the former character is evanescent ; 

 the ocelli are disposed in every form between an angle and a 

 slight curve. 



54. CRABRO BIMACULATUS. B.M. 



Crossocerus bimaculatus, St. Farg. Ann. Soc. Ent. Fr. iii. 788. 



25c?; Hym. iii. 191.25. 



Crabro geniculatus, Shuck. Foss. Hym. 169. 28. 

 Crabro bimaculatus, Dahlb. Hym. Europ. i. 310. 190. 



Hab. Britain; France; Germany; Austria. 



55. CRABRO BREVIS. B.M. 



Crabro brevis, Van d. Lind, Obs. ii. 70. 32 <J ? . 



Shuck. Foss. Hym. 175. 33. 

 Lindenius brevis, St. Farg. Ann. Soc. Ent. Fr. iii. 800. 10; Hym. 



202. 10. 

 Entomognathus brevis, Dahlb. Hym. Europ. i. 295. 179. 



Wesm. Hym. Foss. Belg. 124. 1. 



Hab. Britain; France (Paris); Germany; Italy; Belgium; 

 Austria; Sweden. 



This species only differs from the majority of the genus in 

 being of a shorter and more robust form, and in having 

 a deep notch, or rather an obtuse tooth, at the base of the man- 

 dibles ; these differences cannot be regarded as of more than 

 specific value. 



56. CRABRO CAPITOSUS. B.M. 

 Crabro capitosus, Shuck. Foss. Hym. 159. 20 ? . 



Dahlb. Hym. Europ. i. 317- 198 <J ? . 

 Wesm. Hym. Foss. Belg. 129. 3. 

 Crabro lavipes, Herr. Schaff. Faun. Germ. 1/9. 22. p. 43. 



Hab. Britain; Germany; Sweden. 



57. CRABRO DIMIDIATUS. B.M. 

 Crabro dimidiatus, Fair. Ent. Syst. ii. 298. 19$; Syst. Piez. 



313. 24. 



Van d. Lind, Obs. ii. 58. 20 <J $ . 

 Shuck. Foss. Hym. 151. 14. 

 Dahlb. Hym. Europ. i. 345. 228. 



