THE CANADIAN ENTOMOLOGIST. 55 



Am. vSo that the synonymy is rather mixed, and I give the above as a 

 sample of the difficulties caused by attempts at utilizing the illy-executed 

 figures and indifferent descriptions of some of these old books. 



However, Fabricius (Ent. Syst. 3, No. 479) describes morpheus as a N. 

 Am. insect, and in language, which though brief, is applicable to the summer 

 form of what for many years has been known as tharos. Parvus. Alae omnes 

 integerrimae, fulvae, maculis margineque nigris. Posticae punctis sex nigris 

 in strigam dispositis versus marginem posticum. Subtus anticae fulvae, nigro 

 rnaculatae, posticae pallascentes strigis undatis, margine punctisque sex 

 fuscis. And accordingly, as it is best to designate by name the dimorphic 

 forms of any species, I call the entire species tharos, \ht summer form var. 

 morpheus Fab., the winter form var. ?narcia, and take no heed of Cramer's 

 figures. 



The figures of the male tharos in Bois. and Lee, are not very exact 

 either, but may be taken to represent the var. vwrpheus. But the female 

 must have been drawn from Batesii, and evidently Dr. Boisduval had this 

 insect before him when he wrote these words : " We possess individuals 

 which we consider as varieties, of which the primaries are black, with 

 some fulvous spots and a transverse macular band of the same color. The 

 hind wings do not differ, except that the Imes ofi the basal area run together. 

 Beneath, the hind wings are wholly deprived of a brown border ; the fore 

 taings have likewise a part of the border effaced, but that which remains is 

 blacker than in ordinary individuals. '^ An excellent description oi Batesii. 



My experiments have thrown no light on the position or history of 

 Batesii, and inasmuch as this is certainly a winter form (though I am not 

 yet able to say that it may not be a summer form also), and the only larv^ 

 of tharos so far carried through the winter having been from the Catskills, 

 where Batesii is never taken, I could not expect this last to appear among 

 the resulting butterflies, even if it were only a variety of tharos. If I 

 succeed in saving the hybernating larvae which I now have, most of which 

 originated at Coalburgh, the point as to relationship of these species, or 

 forms, may be settled this coming spring. Batesii is not common here, 

 and I have taken perhaps a dozen examples in course of several years ; 

 all these were flying with marcia. 



