A REVISION OF THE DELTOID MOTHS — SMITH. 87 



Secoiulaiies whitish to yellowish, or liiscons, with a yellow or brown or 

 smoky shade on the outer iiiaryiii belbre the anal aniile; crossed by a 

 narrow dark line which is continuous with tlu; snlttcnninal liiu". of 

 primaries. A narrc^w brown line at base of the fringes, which nearly 

 agree in color with those of the primaries. Beneath ])aler, powdery, 

 both winjis with the outer lines of upper side reproduced, on primaries 

 nuKih less, on secondaries rather more distinctly; secondaries also 

 with a discal spot. 



Expanse ol' wings, 2:i to 2.~> mm. = (>,!)() to I iuch. 



IlAiJiTAT. — Canada in June; New York, June to August ; District of 

 Columbia in May; Missouri, May and June. 



This i)retty little species is quite common throughout its range and 

 conies readily to light. Its chief differential features have been already 

 pointed out, and the sjx'cies should not be ditticult of re(!Ognition. 



Palthis asopialis, Guenoc. 



1854. Gnenee, Spec-ies Getieral, Di'ltoides, 96, Claiiyma. 



1859. Walker, Cat. Brit. Mus., Heterocera, XVI, 152, Palthis. 



1872. Grote, Trans. Am. Entomological Soc, IV, 108, Clanyma. 



1873. Grote, Trans. Am. Entomological Soc, IV, 309, Palthis. 



Ground color a purplish dark brown. Head and thorax concolorous; 

 abdomen a little paler. Primaries with the maculation fairly well 

 marked, sometimes prominent. Transverse anterior line single, nar- 

 row, blackish or brown, even, outwardly bent over the costa; but as a 

 wdiole, inwardly oblique. Transverse posterior line narrow, dark, 

 irregularly dentate and aiigulated; as a whole outcurved, with a small 

 indrawing in the submedian interspace. Sometimes the line is accom- 

 panied by a narrow i^aler shading, which, however, is not iiroinineut. 

 Subterminal line narrow^, pale, outwardly oblique from costa, forming" 

 a prominent W at the middle, which cuts the terminal space to the 

 outer margin. A narrow, dark, terminal line. An obli(pie, broad, 

 median shade, which is sometimes obscure for its entire course: but 

 more usually becomes prominent, velvety blackish brown below the 

 median vein, but does not expand much on the inner margin. Orbic- 

 ular, a black dot or wanting. Tteniform variable; sometimes an almost 

 upright black mark annulate by pale scales: sometimes a large, more 

 or less indefinite bhu^k blotch, with all sorts of intergrades. The 

 apex is concolorous; but belqw it and to the W of the subterminal 

 line the terminal space is black filled, and quite usually the dark fill- 

 ing extends through the inferior portion of the same s[)ace, though not 

 contrasringly. Secondaries blackish gray or fuscous, with an outer 

 dusky and a pale subterminal line, the latter ])receded by a darker 

 shade. A darker indefinite blotch before the anal angle. Beneath, 

 smoky or blackish, jiowdery, with the out«M' lines of upi>er side rejuo- 

 duced inoic or less perfectly. 



Expanse of wings, 21 to -."• mm. = o.SI lo o.'.il* incli. 



