18 BULLETIN J8, UNITED ISTATES NATIONAL MUSEUM. 



1880. Coquillett, (Jiimulian Entonu)lo,i4i8t. XII. 41, larva. 



plKvaUs, Guenf^e. 

 1854. (iiieuce, Species (ienei'al, Deltoides, 7(3, HeJia. 

 18.59. Walker, Cat. Brit. Mns., Heterocera, XA'1, 133, Eplzcn.iis. 



1873. Grotc, Trans. Am. Eulomological Soc. I^^ 308, Hdia. 



1874. (U-ote, Bull. Buff. Soc. Nat. Sci., II. 47, pr. syn. 



1883. Grotc, Canadian Entomoloijist. XIII, 01. ]ir. syn. 

 sia-revUtlis, Walker. 



1859. Walker, Cat. Brit. Mus., Heterocera, XVI, 241, JUcptina. 

 1877. Grote, Canadian Entomologist, IX, 29. pr. syn. 

 var. occidoifaJis, Smith. 



1884. Smith, Bull. Bkln. Entomological Soc, \'II, 5, pr. var. 



(hoiiiul color of body and fore wings a dark, sooty, glistening, black- 

 ish brown; abdomen and secondaries paler with a yellowish tinge. 

 Head and thorax immaculate. Primaries M'ith the transverse lines 

 variably distinct, but always traceable, consisting of a dark and a 

 l)ale line, of which the pale line only is usually distinct. Basal line fre- 

 quently wanting and always inconspicuous. Transverse anterior line 

 outwardly oblique, doubly toothed in the costal region, and outwardly 

 cur\edin the interspaces below; the dusky line is the outer. Transvei'se 

 posterior line with the dark line inwardly, in general course slightly 

 outcurved, <]uite strongly denticulate, the outward teeth ou the veins. 

 Tlie sul)termiiial line is pale, irregularly sinuate and dentate. There is 

 a lunate ])lack terminal line and a yellowisli shade line at the base of 

 the fringes. The median shade line is obscurely marked in a few 

 specimens; but as a rule is obsolete. The orbicular is reduced to a 

 yellowish dot and is cpiite frequently entirely wanting. The reniforjn 

 is usuall.N marked only as a yellowish lunule, sometimes accompanied by 

 a blackish mark through its center or outer margin. The secondaries 

 have a yellowish tinge, most marked basally and they darken out- 

 wardly, marked by alternate dusky and paler bands and lines, some- 

 times almost obsolete, sometimes quite well marked, but never distinctly 

 dentate. Beneath, the wings are smoky, varying to dull powdery 

 luteous with a median and extra-median dusky, followed by i)ale lines. 

 Both wings with a discal lunule always rather prominent on the 

 secondaries, frequently quite reduced and sometimes obsolete on the 

 l)rimavies. 



Expanse of wings, 2,") to 10 mm,=l to 1.00 inches. 



Habitat. — United States generally; northward to Nova Scotia, and 

 found from midsummer to autumn. In Texas, dates are May and 

 October, and a second brood is indicated. 



The variation in this species is i)rim:irily in size and in the ground 

 (;olor, which in pale S]>ecimens results in giving i)rominence to thedaik 

 lines, whde in the dark specimens the pale lines beconie most evident. 

 A large, pale form, in which the lines become diifiise, is found on the 

 Pacific Coast, and this is my variety oixidottalis, which 1 have not seen 

 from the East, 



