84 BULLETIN 48, UNITED STATER NATIONAL MUSEUM. 



slender, denticulate or crenulate, as a whole quite evenly outcurved, 

 sometimes a little drawn in below the subniediaii vein. Subtermiual 

 line vague, denticulate, dusky, emphasized by wliite scales outwardly, 

 sometimes scarcely traceable. A series of small terminal black dots, 

 more i)romineut in the excavation below apex. Orbicular wanting in 

 my specimens. Reniform upright, white, outwardly shaded by rusty 

 red brown, AYliich sometimes divides it centrally. Secondaries whitish, 

 a little stained outwardly or toward anal angle, with a faint crenulate 

 discal line continuing the transverse posterior line of primaries and a 

 series of distinct, blackish terminal lunules. Beneath paler; i)rimaries 

 with the costal and outer margin stained with brown and with an outer 

 line, which is well marked on costa only. Secondaries more coarsely 

 powdered, with a discal dot, and the markings of the upper side faintly 

 reproduced. 



Expanse of wings, 18 to 20 mm. = 0.72 to 0.80 inch. 



Habitat. — New York and Texas in July; Illinois in May; Eastern 

 and Central United States. 



1 have never had any large number of specimens of this species, and 

 have never seen any reaching in size those mentioned by Mr. Grote: 

 25 mm, which is probably an error. Tlie only variation apparent in 

 the s])ecimens before me is in the ground color and the consequent 

 relative distinctness of the transverse maculation. 



Dercetis pygnieea, Grote. 



187S. Grote, Bull. U. S. Cieol. Surv., IV, 187. Drrcclis. 



Ground color purplish gray, darker than in J). ritre<(, but with essen- 

 tially the same markings. There is a somewhat more reddish suffusion 

 through tlie center of the ])rimaries, but no determinate shading. The 

 reniform is yellow, with a central lunule, and the transverse posterior 

 line is a little more even than in its ally. 



Expanse of wings, 1-1 to 10 mm. = 0.00 to 0.70 inch. 



Habitat. — Florida; Texas in July. 



The smaller size, darker color, and yellow reniform will readily dis- 

 tinguish the species. It is obscnirely marked and the description would 

 be elo.sely a repetition of that of />. rifrra. It seems more rare than 

 its ally, but will probably be found in others of the Southern States, 



Genus PALTHIS, Uiil)iier. 



181(]. Iliibucr, Verzeichiiiss, 312. 



1859. Walker, Cat. Brit. Mus., Lep. Heterocera, XVI, 1.51. 



Clanijma, Guonee. 

 1854. Gueuoe, Species General, Deltoides, 95. 



Marilara, Walker. 

 1859. Walker, Cat. Brit. Mus., Lep. Heterocera, XVI, 157. 



Head moderate; eyes comparatively large, globose, naked. Front 

 with ail interantennal tuft. Ocelli on the vertex, close to the com- 

 pound eye and some distance back from the base of the antennae. 



