AMERICAN LEPIDOPTERA. 173 



and T. lorata. this band is seiuiluuated but interruptedly continuous, 

 the dark preceding shades are not separated into distinct spots and the 

 inner line is often wanting. In T. acadica, we have the fulvous spot 

 on the secondaries above, characterizing also T. calanus, but the greater 

 size of the latter, its more brownish color, and the form of the extra 

 discal band, will sufficiently separate the two species. We have the 

 male T. calanus, from Canada, under the, we believe, unpublished name 

 of T. E(hcar(hu\ Saund., owing the specimen to the kindness of Mr. 

 Edwards; our female specimen is from the vicinity of Philadelphia, and 

 wants the sexual discal mark of the % , is slightly larger but not other- 

 wise distinct, though the antcnnal " club " is fulvous beneath, the Cana- 

 dian "S having it but partially so. Having T. calanus, from Canada and 

 l^cnnsylvania, wo may expect to meet with it at intermediate points 

 through the Eastern States. Our specimens of T. falacer are from Cana- 

 da, New York and Georgia, while we have T. acadica from Canada, Mas- 

 sachusetts an-d Pennsylvania. T. falacer^ Harris, Ins. Inj. Veg., p. 276, 

 may be assumed as a synonym of T. caknus, since, while the "orange- 

 colored spot'' of the secondaries above is mentioned, "there are two 

 rows of spots — l)()rdered on one side only with white " crossing the 

 wings beneath. This latter character would hardly apply to T. acadi- 

 ca, the only other species to be here considered, since the inner extra 

 discal band is here com])letely macular; and though in T. calanus, this 

 band or '-row" of " dark brown spots" is also, but more faintly, edged 

 inwardly by a white line, we may assume that this inner edging, al- 

 ways fainter, and sometimes wanting on the primaries, (T. calanus and 

 T. falaecr), always wanting on the primaries and in one specimen on 

 the secondaries (T. lorata), is not sufficiently constant to affi^rd a spe- 

 cific character. While Harris' T. falacer cannut be referred to Thec- 

 la falacer, Gixlt.^ sp., as illustrated by l^uisd. and Lee, it is then prob- 

 able that his specimens are to be referred to T. calanus, rather than 

 t(i T. acadica. This latter species is nearer allied to Thecla mellinus, 

 )lV.s7/r. i Sfn/mon mel., Hiibn., Zutr. ; T. hamuli, Harris; T. sileiius, 

 E. Duabl. ; T. favonim'l, Bdv. and Lee, pi. 30, figs. 1 — 2, (nee f. 3); 

 T. h/j/jcrici, Bdv. and Lee.) in the color of the upper surface of the 

 wings and general appearance above, than to either of the above-men- 

 tioned species or to Thecla favonius, Bdv. and Zee, pi. 30, fig. 3 (Fa- 

 pilio Fdi'oniufi. Smith, Abbot Ins. Ga.), which latter we have before 

 us from Georiiia. 



) 



