AMERICAN LEPIDOPTERA. 209 



by a yellow lunular spot." Subsequently they add, " we possess indi- 

 viduals which we regard as varieties, of which the upper wings are 

 black with some fulvous spots and a transverse macular band of same 

 color. Beneath, the inferior wings are entirely without the brown 

 border ; the superiors have likewise a part of the border wanting." 

 This I believe to refer to J/. Batesii, and the figure of the female in 

 the plate seems to represent that species.. 



In his paper on the Lepidoptera of California in Ann. tSoc. Ent. de 

 France, 1852, l)r. Boisduval makes a distinction between Tharos, of Cra- 

 mer and that of Drury, which he calls Pulchella^ and erroneously says is 

 to be found throughout California. Drury's figure represents the upper 

 surface as nearly black, like Batesii, but gives the under side of second- 

 aries as having a white crescent and russet markings, and therein dif- 

 fers from Batesii. In the text, evidently two or three species are con- 

 fused, the description of upper side applying either to Tharos of Cra- 

 mer or to Batesii, or to Marcia. The description of under side of pri- 

 maries is applicable to either ; of secondaries, it says, "very pale clay 

 colors, with a cloud in the middle of the external edge of a reddish- 

 brown, where (in some) is a silver crescent." This relates alone to 

 Thurofsus described in Boisduval and Leconte and referred to Cramer. 

 Cramer's figure is not reliable and indeed is worthless, but as Boisdu- 

 val has adopted his name and correctly figured and described one of 

 the forms under it, it would not now be questioned. But the name of 

 PuIcht'Ua is not specially applicable to any of our species, if Drury's 

 figure and description is to guide us. 



I have found 3Iarcia common on the Kanawha River, W. Va., in 

 June. Batesii is of earlier flight and rather rare in that region. 



Thecla Ontario, n. sp. 



3Iale. Expands 1.1 inch. 



Upper side dark brown, color of T. Acadica; on costal margin of 

 primaries a large smooth oval spot; secondaries have a single tail and 

 a very slight projection at extremity of second median nervule, as in 

 Acadica; from the base of the tail a faint white line extends along the 

 margin to anal angle ; at this angle a few scales of fulvous ; between 

 the first and second median nervules an indistinct marginal dark spot 

 above which are a few fulvous scales in crescent form ; tail black, tip- 

 ped with white; fringe of both wings fuscous, next before the tail 

 white, beyond it, black at extremity, white next the margin; seconda- 

 ries more produced at anal angle and loss rounded than Acadica. 



Under side uniform light brown, color of T. Calanm (^falacer of 



