SPHEX. 



241 



Geuus SPHEX. 



Sphex, pt., Linn. Syst. Nat. ed. xii, p. 941 (1767). 



Dryiims, pt. ; Pepsis, pt. ; Chloriou, Fab7\ Si/st Piez. pp. 200, 207, 



217 (1804). 

 Prouceus, Latr. Gen. Crust. Ins. iv, p. .56 (1809). 

 Enodia, Prioiioiiyx, Dahlb. Hi/m. Eur. i, p. 28 (1845). 

 Harpactopus, Paraspliex, Smith, Cat. iv, pp. 204, 267 (1856). 

 Gastrospha^ria, Costa, Faim. Reyn. Nap. p. 10 (1858). 

 Pseudosphex, Tasc/ienberq, Zeitsckr. yes. Naturiviss. Halle, xxxiv 



p. 420 (1869). 

 Isodoiitia, Patton, Proc. Boston Sac. Nat. Hist, xx, p. 380 (1881). 

 Spliex, Kukl, Ann. Naturhist. Hofmus. Wien, v, 1890, p. lOo. 



Fig. (31. — Sphex umhrosus, ^ . t- 



Type, S. flavipennis, Fabr. 



Range. Over both heniispheres. 



The 2nd cubital cell receives the 1st, and the 3rd cubital cell 

 the 2ad recurrent nervure. Legs stout, furnished with spines ; 

 the anterior tarsi strongly ciliated on the outside.. 



The Oriental species of this genus make burrows in the ground, 

 storing their nests with various species of orthopterous insects. 



Key to the Sjyecies. 



A. Tarsal claws unidentate. 



a. Head, thorax, and abdoineu some shade of 



metallic blue or green S. lobatus, p. 242. 



h. Head and thorax red. 



a'. Only the pro- and mesothorax red ^S". reyalis, p. 243. 



b'. The whole thorax including the median 



segment red .' S. splendidus, p. 243. 



B. Tarsal claws bidentate. 



a. Scutellum and postscutellum longitudinally 

 notched. 



a'. Wings flavo-hyaline S. hiteipcnnis, p. 247. 



b' . Wings clear hyaline. 



d~. Legs and aljdoiuen black ,S'. uinbrosus, y. 250. 



b'\ Legs and abdomen red S. vicinus, p. 245. 



c'. Wings hyaline and iridescent, with a 

 brownish tint. 

 a-. Pubescence on thorax ferruginous .... S. auriilnitus, p. 250. 

 TOL. I. B 



