POMPILUS BIFASCIATUS. 71 



segment with a transverse abbreviated macula at its base in the 

 middle. 



Var. /3. The white markings on the head and prothorax obso- 

 lete ; the metathorax and anterior legs black. 



Var. y. The head and legs black, with the anterior tibiae fer- 

 ruginous within ; the metathorax ferruginous. 



Var. d. The transverse macula on the fourth segment inter- 

 rupted or subinterrupted. 



Male. Length 3J lines. Closely resembles the female ; the 

 antennae a little longer than the thorax ; the legs black, with 

 the anterior tibiae ferruginous ; the sixth ventral segment 

 emarginate ; the seventh with a longitudinal carina in the 

 centre. 



The male is described from the only British specimen which 

 I have seen; probably it varies like the female in colouring, 

 which appears to run into innumerable varieties ; the synonymy 

 may therefore be much more extensive than is indicated. 



The authority upon which this species is for the first time in- 

 cluded in the British fauna, is a specimen which w r as intermixed 

 with a series of P. rufipes in the Cabinet of the British Museum ; 

 it is a female, with the metathorax black; the locality attached 

 to the specimen is South Wales, and the species being found 

 throughout Europe renders it pretty certain that the locality is 

 correctly given. Several of the species, which a few years ago 

 were unique in the Museum, have had their claim to being 

 indigenous confirmed. 



Div. III. The anterior tarsi not ciliated, the intermediate and 

 posterior tibice without spines. Agenia, Schiodte. Sp. 18-20. 



18. Pompilus (Agenia) bifasciatus. 



P. ater, immaculatus, alis albis, fasciis duabus nigris, metatho- 

 race nitido. 



Sphex bifasciata, Fair. Ent. Syst. ii. 212. 58. 

 Fompilus bifasciatus, Fabr. Ent. Syst. Supp. 248. 16 ; Syst. Piez. 

 193. 26. 



Panz. Faun. Germ. 86. 11 ; Krit. Revis. ii. 119. 



Latr. Hist. Nat. Crust, et Ins. xiii. 281. 4. 



Coqueb. Illustr. i. 20. t. 4. f. 11. 



Spin. Ins. Lig. i. 69. 3. 



Van d. Lind. Obs. i. 40. 5. 



Shuck. Foss. Hym. 52. 3. 



