180 LEPIDOPTERA. 



translucent spots in bathyllus has been found constant in the 

 many specimens I have examined, and differs considerably 

 irom pylades. The fringes, palpi and undersides of antennae 

 in bathyllus are comparatively lighter in color, and the brown 

 bands that cross the wing on the underside of the secondar- 

 ies are more uniform in character, their edges not being 

 nearly so serrate or ragged as in pylades. The spots on the 

 primaries, the fringes, palpi, undersides of antennae, and the 

 bands on secondaries beneath if studied conjointly will 

 enable the student to readily separate these two species in 

 either sex. 



Eiidaimis (Thorybes) niexicanus Herrich-Schaeffer. 

 Eudainus (Thorybes) tievada Scudder, Rept. Peabody Acad. Sci., 

 1871. (Syst. Rev. Am. Butt.) 



"Closely allied to T. bathyllus, but measuring only 34 

 mm. in expanse of wings. The under surface of hind wings 

 is very delicately marbled with fine short transverse lines, 

 giving the outer half of the wing a hoary appearance : in the 

 lower half of the wing one may distinguish rudiments of two 

 darker bands at about two-fifths and three-fifths the distance 

 from the base, the inner one reaching to the middle of the 

 wing. Sierra Nevada, California (Henry Edwards)." 



There seems to be considerable doubt as to what E. 

 nevada really is. Dr. Strecker in his Catalogue (1878) puts 

 it as a synonym of pylades which he erroneously considered 

 a variety of bathyllus. Mr. W. H. Edwards in his Catalogue 

 (1884) gives the localities as Texas, Arizona and Colorado, 

 not mentioning the locality from whence came the types. 

 Godman and Salvin in the Biologia say: " The loan of the 

 type of Herrich-Schaeffer's Eudamus rnexicayius, enables us 

 to state that it agrees with a series of specimens in our col- 

 lection from Mexico and Western North America, the latter 

 sent to us by Henry Edwards and Mr. Strecker under Mr. 

 Scudder's name T. nevada.'" The Biologia further gives the 

 following synonymy: 



Thorybes mexicanus Biol. Cent-Am., p. 334, tab. 80, figs. 15, 16, 17 cf. 

 T. mexicatius Herr-Schaeff. Prodr. 3, p. 68, 1868. 

 T. nevada. Scudder, Rept. Peabody Acad. Sci., 1871. 

 T. ananius Plotz, Stett. Ent. Zeit., p. 99, 1882. 



