NORTH AMERICAN LEPIDOPTERA. 109 



Colors olive and red brown ; body more graceful and slender. 



Discal cell of primaries free; vitreous field of secondaries usually crossed by 

 five nervules. 

 Thorax beneath with lateral red shades; bind wings beneath with a pale 



shade at anal angle gracilis. 



Discal cell of primaries crossed by a bar of scales; vitreous field of secondaries 

 crossed by six nervules. 



Inner margin of band of primaries inwardly dentate thysbe. 



Inner margin of band of primaries not dentate. 



Larger var. riificaii<ii!!>. 



Smaller var. biiffaloeiii^is. 



The syiionyiny will be given in the li.st at the end of this paper. 



L,EPISESIA Grt. 

 Pr. Ent. See. Phil, v, 38, 1865. 



Head small, eyes small, more or less distinctly lashed ; tongue 

 moderate or long, corneous ; j)alpi somewhat variable, usually short, 

 rarely forming a short snout (gaurce) ; body stout, sometimes more 

 or less depressed ; abdomen with inconspicuous lateral tufts, often 

 wanting, and a more distinct anal tuft ; posterior margins of seg- 

 ments s[)inulose. Feet moderate, anterior tibiae stout, with a series 

 of stout spines or claws outwardly and at tijD. Primaries rather 

 elongate, outer margin obli(|ue, sinuate, hind angle distinct and 

 somewhat produced. Secondaries somewhat variable in form, usually 

 somewhat produced. The venation presents nothing peculiar. 

 There is never any difficulty in recognizing this genus as the com- 

 bination of clavate antenuc-e and armed fore tibiae is found nowhere 

 else. 



Taken as a whole the genus is not a compact one. In Mr. Grote's 

 List the species here united are divided among Lepisesia, Euproser- 

 plnus and Pogocolon, and at first sight the division seems justified. 

 As, however, we get the species together and compare them more 

 closely, it will be seen that the differences are hardly tangible, and 

 that following the same line, darkicp^ is not congeneric with gaurce, 

 and, indeed, offers better characters for separation, while terlooi Hy. 

 Edwards, certainly does not belong with its associates and probably 

 furnishes an ally to Arctonotus. The species is Mexican, and I am 

 at a loss to know why it stands in our catalogues, as it has never 

 been recorded from this country. 



* I find that Mr. Butler has made this the type of Dieneces. 



