382 



Pasadena. There is no doubt that these are the same as VValsingham's 

 species and not a Stenoptilia, as described. 



We are unable to agree with the commonly accepted placing of 

 this name as a synonym of cretidactylus. It is difficult to point out 

 single characters to separate the two, yet they are very distinct in 

 general appearance. The dark markings of the primaries in occidcn- 

 talis are not distinctly powdery, these wings are slightly narrower, 

 their color is much more brown or tawny, and, as noted, the first pair 

 of spurs on the hind tibiae show a greater difference in length. The 

 genitalia of the two species are rather similar. Since this species 

 appears to be confined to the western states, and cretidactylus to the 

 east, little difficulty should be encountered in separating them. 



Basing our judgment on the food plant and locality we have no 

 doubt that Dyar's larvae described as cretidactylus belonged to this 

 species. His description is as follows : 



"Head rounded, higher than wide, partly retracted ; green, ocelli black. 

 Body a little thickest in the middle, miiform green with a whitish dorsal line. 

 Warts round, concolorous, i and ii near each other but separate, a small wart 

 (iii a) below and beiiind iii ; another (iii b) behind iv+v, vi and vii not large. 

 Feet noniial, the abdominal ones slender, wider at the claspers. 



"Pupa suspended by the cremaster, slender; cases projecting over the 

 abdomen half way to the tip. Uniformly green, covered with tufts of sparse 

 radiating hairs, arranged roughly as in the larvae. Length 11 mm., width 2.5 

 mm. On Aster, Yosemite, Cal. June." In a footnote it is stated that the food 

 plant was not identified with certainty. 



Walsingham notes that one specimen in the t\pe series was reared from 

 the leaves of "a species of sunflower". 



2. OlDAEMATOPHORUS CRETIDACTYLUS Fitcll, PI. XLV, fig. 13. PI. 



LI, fig. 2. 



Picrophonis cretidactylus Fitch, Trans. N. Y. Apr. Soc. XIV, 849, 1854. 



Id., 1st Kept. Ent. N. Y. 145, 1854. 



Morris. Cat. Lep. N. A. 54, 1860. 



Walker, List Lep. Ins. B. M. XXX, 940, 1864. 



Femald, Pter. N. A. 52. pi. VI, ff. 9, 10, 1898. 



Id., Bull. .52 U. S. N. M. 446, 1902 (in part). 



Meyrick, Gen. Ins. C, 17, 1910 (in part). 



Id., Wagner's Lep. Cat. pars 17, 25, 1913 (in part). 



Barnes & McDunnough, Check List 151, 1917 (in part). 



Britton, Ins. Conn. 103, 1920. 

 Ocdemalophorus gypsodactylus Walsingham. Pter. Cal. Ore. 35, footnote, 1880. 

 XAlucita crelidactyla. Femald, Smith's, List Lep. N. A. 87, 1891 (in part). 

 iPtcroplwrus cretidactylus Grinncll, Can. Ent, XL, 319, 1908. 



