ART. 1 AMERICAN WASPS OF THE GENUS SCELIPHRON PORTER 21 



SCELIPHRON ARGENTIPILE (Provancher) 



Pelopoeus argentipUis Provancher, 1887, Addit. faun. Canada, Hymen., p. 256, 

 female. 



An examination of the type at Quebec by the late F. W. L. Sladen 

 at the request of the late Dr. C. Gordon Hewitt proved it to be not a 

 SceUphron, but presumably a Sphex. 



SCELIPHRON FUSCUM (Lepelctier) 



Pelopoeus fuscus Lepeletier, 1845, Hist. Nat. Insect, Hj'men., vol. 3, p. 311, 

 no. 9, female. 



The habitat of this form is unknown. I have been unable to recog- 

 nize the species, and it probably does not occur in America. What- 

 ever its identity, the name fuscwni must be rejected, it having been 

 previously used by Klug for one of the species originally included 

 in the genus Sceliphron. 



SCELIPHRON PETIOLATUM (Drury) 



Sphex petiolatus Drury, 1773, Illustr. Nat. Hist., vol. 2, p. 75, pi. 39, fig. 7. 

 Pelopoeus petiolatus Westwood, Drury, 1837, Illustr. Nat. Hist, Ed. 2'', vol. 2, 

 p. 85, pi. 39, fig. 7. 



This species was described by Drury from Jamaica, but it has been 

 unrecognized since, and I have been unable to place it. From a stud}^ 

 of Drury's description and plates I judge that this species is not a 

 Sceliphron. 



EXPLANATION OF PLATES 



[From drawings made by the author] 



Plate 1 



Fig. 1. Dorsal view of thorax of female Sceliphron cacmentartmn (Drury). 



2. Side view of thorax and abdomen of female caementarium. 



a, prothorax. di, side of proiwdeum. 



Oi, prothoraeie lobe. ds, end of propodeum. 



ac, anterior coxa. di, spiracle in propodeum. 



&], mesonotum. f, funiculus. 



1*2, scutellum. -fw, fore wing. 



63, prepectus. hw, hind wing. 



Ci, metanotum. nic, middle coxa. 



C2, anterior portion of meta- p, petiole. 



thorax. pc, posterior coxa. 



Ci, posterior portion of meta- s, spiracle in 1st dorsal ab- 



thorax. dominal segment. 



di, dorsum of propodeum. t, tegula. 



3. Front view of head of female caementarium. 



4. Tarsal claw of caementarium. 



5. Tarsal claw of fistulare. 



