Sphingidae 



Syn. victories Grote. 



The head, thorax and abdomen on the upper side are preva- 

 lently pale olive-green, the fifth and the three anal segments of 

 the abdomen being darker green. The fore wings are pale green 

 with an oblique brownish median band, and a triangular paler 

 brownish spot at the apex. There is a small black discal dot at 

 the end of the cell. The hind wings are deep orange-yellow, 

 margined with black. On the under side the wings are olive- 

 green, darker at the base. The hind wings have a waved 

 whitish band about their middle on the under side. The legs 

 are greenish-white. 



This species is found from Oregon to northern California, and 

 eastward to Utah and Montana. 



Genus EUPROSERPINUS Grote & Robinson 



This genus is discriminated by Rothschild & Jordan from 

 Proserpinus by the fact that the antenna is more abruptly hooked 

 and slenderer at its extremity than in Proserpinus, and by the 

 absence of the pulvillus and paronychium, which are found in 

 Proserpinus. Two species belong to the genus, both having 

 white hind wings margined with darker color and the under side 

 of the pectus and the wings also white. 



(1) Euproserpinus phaeton Grote & Robinson, Plate II, 

 Fig. 9, $ . (The Phaeton Sphinx. ) 



Syn. errato Boisduval. 



The head and thorax above are gray, the abdomen blackish. 

 The preterminal segment has yellow lateral tufts. The anal tuft 

 is black. The fore wings above are of the same color as the 

 thorax. The hind wings are yellowish-white with a broad black 

 marginal band. Expanse 32 mm. 



The habitat of this species is southern California. 



(2) Euproserpinus euterpe Edwards. (The Euterpe 

 Sphinx.) 



This species, which is only known to the writer through an 

 examination of the type, is discriminated from the preceding by 

 the absence of pale tufts on the side of the abdomen and the fact 

 that the marginal band of the hind wing is bowed inwardly and 

 not straight as in E. Phaeton. 



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