NO. 7 THE GOLD-BANDED SKIPPER CLARK 1 3 



KEY TO THE NAMED VARIETIES OF RHABDOIDES CELLUS 



a\ Band across the fore wings broad and continuous. 



Z;\ Ground color black or blackish brown (when fresh). 



(■'. Band on fore wings normal, golden yellow, pointed below cellus. 



c^. Band on fore wings almost twice as broad as normal, rounded below, 



mexicana. 



!>'. Ground color bronze-brown aercojuscus. 



a. Band on fore wings represented by four well-separated spots leilac. 



VARIATION 



This butter riy appears to be unusually uniform in its characters, 

 both locally and throughout its range. 



The specimens at hand from Maryland (pi. 2, figs. 3-6), all taken 

 during the past summer, are very dark, blackish, and small. Gunder. 

 speaking presumably of this species as it occurs in Arizona, said that 

 " Normal specimens of cellus and pseudoccllus are black or nearly 

 black." In Maryland a few much lighter badly broken specimens were 

 caught but were not preserved. 



The specimens at hand from West Virginia (pi. i, figs. 7, 8) are as 

 small as those from Maryland, but are lighter in color. They were 

 caught, however, 34 years ago and presumably have faded. 



Those from Pennsylvania (pi. 3, figs. 13, 14) are as large as those 

 from Arizona (pi. 3, figs. 11, 12), with which they agree in their 

 ground color as well as in all other details. 



At first sight the fringe on the hind wings of the Maryland indi- 

 viduals appears clearer white than it is on the western specimens, 

 but closer examination shows that this is on account of the greater 

 contrast with the darker ground color. 



The band on the fore wing varies very little. It is narrowest in two 

 specimens from Kerrville, Tex., but it is almost equally narrow in 

 two from Pennsylvania and in one from Maryland. It is broadest in a 

 specimen from Maryland, though almost equally broad in some from 

 Arizona. 



There are no diflferences that can be detected between specimens 

 from Mexico and others from Arizona. Two from Cuernavaca have 

 the band slightly narrower than the others, and the one from Guate- 

 mala (pi. 4, figs. 15, 16) has it slightly broader, though not so uni- 

 formly broad as it is in the one from Maryland. 



Dr. W. J. Holland said that Mexican specimens are larger and the 

 light band is narrower, and Dr. M. Draudt described a form {mexi- 

 cana) from Orizaba with the band almost twice as broad as usual. 

 It is quite likely that more or fewer of the individuals in certain 



