TURNER— FOSSORIAL HYMENOPTERA 369 



Sceliphron bengalense Cam., Trans. Linn. Soc. Ser. 2, Zool., xii. 1907, p. 76 (nee Dahlb.). 



Specimens of this species from Mahe and Silhouette all show the very long petiole 

 characteristic of madecassum, and differ from the specimens from the Chagos Islands 

 referred to bengalense correctly by Cameron, but I must consider his record from the 

 Seychelles as mistaken. 



Localities. Seychelles: Mahe\ road below Morne Blanc, X. 1908, Cascade Estate, 

 II. 1909, Long Island, VII. 1908 : Silhouette, cultivated country, IX. 1908 (Scott). Also 

 from Madagascar. 



7. Sceliphron (Chalybion) bengalense Dahlbom. 



Sceliphron bengalense Dahlbom, Hym. Eur. i. 433 ; Cam., Trans. Linn. Soc, Ser. 2, 

 Zool, xii. 1907, p. 76. 



This species was obtained in the Chagos Islands by the " Sealark " Expedition in 

 1905, and recorded by Cameron, I.e. [As stated above, the specimens obtained during 

 that expedition in the Seychelles, and referred to this species, are really S. madecassum.'] 



8. Sceliphron hemipterum Fabr. 



Sphex hemiptera Fabr., Suppl. ent. syst. p. 244, 1798. 



Pelopo3us hemipterus Fabr., Syst. Piez. p. 204, 1804. 



Sceliphron hemipterum (Fabr.), Cam., Trans. Linn. Soc, Ser. 2, Zool., xii. 1907, p. 75. 



Localities. Seychelles: Mahe, Silhouette, Praslin (1905 and 1908 — 9). Also from 

 Africa and Madagascar. 



Genus Ammophila Kirby. 



9. Ammophila (Psammophila) capensis Lepel. 



Ammophila capensis Lepel, Hist. Nat. Insect. Hym. iii. p. 368, 1845. 



Localities. Assumption (J. C. F. Fryer, and R. P. Dupont). Cosmoledo, 1907 

 (H. P. Thomasset). A common African species, probably only a race of A. tydei Guillou. 

 It also occurs in Madagascar. 



10. Ammophila sp. 



A single specimen ($) of a true Ammophila has been received from Mr R. P. Dupont, 

 who obtained it in Assumption Island in 1910. It resembles a form obtained in Reunion 

 and referred by Saussure (in Grandidier, Hist. Madagascar xx. p. 436) to A. sabulosa 

 Linn. : but Saussure's determination of the species may be incorrect. 



Genus Sphex Linn. 



11. Sphex torridus Sm. 



Sphex torrida Sm., Ann. and Mag. Nat. Hist., Ser. 4, xii. p. 291, 1873. 



Localities. Aldabra ; many specimens, chiefly found at coast (1908, J. C. F. Fryer). 

 Assumption (1909 and 1910, R. P. Dupont). Cosmoledo (1907, H. P. Thomasset). A 

 common species in Madagascar. 



