NO. 1487. 



NORTH AMERICAN DIGGER WASPS— FERNALD. 



419 



Apparently a SceUp/iro)i. The name was ^iven because of a T-shaped 

 mark on the back of the .thorax, and none of the insects I have seen 

 has such a mark. 



The locality given is Santo Doming-o. 



SPHEX VAGA Christ. 

 Sphe.r ratjn Ciikist, Natur. d. Ins., 1791, ]). 305. 



SPHEX VIOLACEIPENNIS Lepeletier. 

 Sphex violaceipennis L.EPFA.ETiER, Hist. Nat. Ins. liyin., Ill, 1845, p. 349. 

 Described from "Philadelphia." It may prove to be O. {Palmodes) 

 ahdominalU Cresson, 



SUBJECTS AJVI) STRUCTURAL 



mandibles 298 



median segment 302 



mesonotum 300 



mesopleuron 301 



mesothorax 300 



metapleural lobe 301 



metapleuron 301 



metatarsus 306 



metathorax 301 



neck 300 



Nomenclature 292 



ocelli 298 



pedicel 299 



petiole 303 



postscutellum 301 



propodaeum 302 



prothoracic lobe 300 



prothorax 299 



pubescent 295 



rugose - 296 



scape 299 



schulterbeule 



scutellum 



sericeous 



Sexual distinctions 



300 

 301 

 295 

 307 



stigmatal groove 302 



strife 296 



Table of species 309 



Tafcle of subfamilies 308 



Table of subgenera 309 



tarsal comb 306 



tarsus 306 



tegulfe 305 



tibia 306 



trochanter 306 



Unidentified species 416 



wings 304 



