346 [November 



Palpi very long, curved upwards in front of the clypeus, reaching above 

 the vertex, the third joint long, acute. Fore wings long and narrow, 

 more regularly oblong than any of the other genera ; costa hardly con- 

 vex, outer margin nearly straight, suddenly rounded at the internal 

 angle ; inner edge very full at the base. 1st and 2nd subcostals short ; 

 upper branch of the 3rd subcostal long, so that the apical interspace Ls 

 much longer and narrower than in Limacodex. 



Apex of the secondaries rounded, outer margin full and rounded. 

 Spines of the hind tibia) large and stout. Grenital armor much longer 

 than in Liniacoih^. 



This genus reminds us strongly of Hiibner's genus Lithacodla . 



Lithaoodes fasciola. 



Limacodes faaciola Boisd., Herrich-SchBeffer, Lep. Ex. Sp. 'Sov. Fig. 186. (1854). 

 Limacodes? faficiola Walk.. Lep. Br. Mus. Pt. V. (1855). 

 Limacodes laticlavia Clemens, Proc. Acad. Nat. Sc. Phil. p. 157. (May, 1860). 

 Morris, Synopsis Lep. N. Amer. pp. 127, 128. (1862). 



Brookline, July 9, (Shurtleff ). Boston, (Sanborn). N. Y. (G-rote). 

 " Illinois, Kennicot" (Clemens). 



HETEROGENEA. 



Heterogenea ShurtlefR, n. sp. 



% . Fore-wings of a uniform brown, reflecting a purplish lustre, 

 the outer half of the wing especially tinged with brown. Costa yellow- 

 ish brown ; apical region dark. Secondaries much darker, of the same 

 color on the upper and under side of both wings. Beneath the costa 

 of the fore-wings coucolorous with the upper side, but dilated at the 

 apex. Legs testaceous. 



9 . Yellowish brown, coneolorous with the costa of the % . A mid- 

 dle oblique, narrow, dark line. An obsolete line of dark scales from 

 the outer two-thirds of the costa curves outwards to the outer margin, 

 just above the internal angle. Fringe bilineated with dark, tipped at 

 the apex with black scales. Secondaries dark, fringe plain, pale testa- 

 ceous. Beneath yellowish, a little lighter than the primaries above. 



Length of body % .20, $ .25 ; exp. wings % .50, $ .60. 



The sexes were found united July 16, on the Grleditschia tricanthus 

 at Brookline, (Shurtleif.) 



I take a melancholy pleasure in naming the only species of this genus 

 as yet discovered in this country after the late ^Ir. Carleton A. Shurt- 



