94: Mr. E,. E. Turner oji Fossorial Ilymenoptera. 



6 6. 



1. Basal joints of the flagelliim not normal, at 



least with a notch between the second 

 and third joints beneath ; clypeus witli 



a lonaitndinal carina 2, 



Basal joints of the llagellum normal; cly- 

 peus -without a carina 7. 



2. Anterior femora with a spine beneath near 



the base 3. 



Anterior femora without a spine 4. 



3. Transverse band of second dorsal segment 



orange, broad, and entire C. truletdatns, Sm. 



Transverse band of second dorsal segment 



yellow, narrow, and interrupted C. tasmaaictis, Sm. 



4. Fourth dorsal segment banded with yellow 



or orange ,'5. 



Fourth dorsal segment wholly black C. manifestatiis, Turn. 



5. Scutellum and postscutellnm wholly black . G. 

 Scutellum with yellow spots at the basal 



angles ; postscutellnm with a transverse 



yellow band C. ordinarhis, Turn, 



6. Transverse band of second dorsal segment 



broad and entire C. hivittatus, Turn. 



Transverse baud of second dorsal segment 



narrow and interrupted C. neglectus, Sm. 



7. Second joint of the flagellum no longer than 



the third; band on tlie second dorsal 

 segment broad and entire ; tliird wholly 



black C. cinctus, Turn. 



Second joint of the flagellum much longer 

 than the third ; band on the second 

 dorsal segment narrow and interrupted ; 

 third with a narrow transverse band on 

 each side C. conc/lobatus, Turn. 



The males of C. machayenais and C. hebetescens are 

 unknown, as is also the female of C. ner/ledus. 



Crabro (Solenius) neglectus, Sm. 



Crahro neglectus, Sm. Trans. Ent. Soc. London, p. 249 (18G8). 6 • 



I have not included tliis species in the key to the females, 

 because it is known only in the male sex. It seems to be 

 most nearly allied to biviltatus, but the orange bands at the 

 base of the second and fourth dorsal segments are narrow 

 and that on the second interrupted; the angles of the pro- 

 notum are also more distinctly pointed and the first abdo- 

 minal segment is broader and shorter. 



