">4 JOHN B. SMITH. 



This species extends probably throughout all the Northern, East- 

 ern and Middle States, and to the Rocky Mountains in Colorado. 

 It is one of the most common forms in the genus, and its life history 

 has been well written by Mr. Bird. 



Mr. Bird has also cleared up the synonymy of Harris's species 

 leueostigma, a name, which, unfortunately, has been preoccupied. 

 The species varies little, except in the intensity of the coloring. Its 

 nearest ally is harrisii, and the differences from that species have 

 already been pointed out The genitalia of the male agree in a 

 general way with those of the group, save that the clasper is 

 unusually small and slender. The spinulation of the tip of the 

 harpes is also less dense than in the immediate allies. 



H,V<lroM'isi nitela Gu., pi. 2, figs. 21 and 22. % genitalia. 



1S52. — Gn., Spec. Gen. Noct., i, 124, Goriyna. 



1856.— Wlk., Cat. Brit. Mus. Het., ix, 158, Gortyna. 



1869.— Pack., Guide tu Study Ins.. 310, f. 211, Gortyna. 



1869.— Riley, 1st Rept. Ins. Mo., 92. larva. 



1870.— Riley. Amer. Ent,, i, 22, f. 11, larva. 



1873.— Grt., Bull. Buff. Soc. Nat. Sci., i, 111, Hydroecia. 



1875.— Pack., 9th Ann. Rept. Geol. Surv., 719. pi. 65, f. 6, Gortyna. 



1876.— Riley, 8th Rept. Ins. Mo., 37, larva. 



l.sso.— Riley, Amer. Ent., iii, 201, f. 107, Gortyna. 



1883.— Sauud., Fruit Insects. 334, f. 347. 348, larva. 



1883. -Osboru, Can. Ent,, xv, 174, larval habits. 



1884.— Lintner, 1st Rept. N. Y. State Ent,, 110, f. 26. larva. 



1893. Smith, Bull. 44th U. S. Nat. Mus., 178, Hydroecia. 



1898. --Bird, Can. Ent., xxx, 127, habits and early stages, 

 var. nebria Gn. 



1852.— (in.. Spec, Gen. Noct., i, 124, Gortyna. 



1856. -Wlk Cat. Brit. Mus. Het., ix, 157, Gortyna. 



1878— Grae* Bull. Bkln. Ent. Soc, 1, 7, pr. var. 



1881. Riley, Papilio, 1. 107, habits and var. 



1881. — Riley, Index and Supplt. to Mo. Repts., 56, pr. syn. 

 Ground color fawn gray, with a more or less reddish tinge, varying somewhat 

 in specimens, powdery. Head and thorax with a distinct violet powdering, 

 caused by the pale termination of the scales on head and thorax. Basal line 

 barely distinguishable, paler, terminating at the middle of the wing. T. a. line 

 yellowish, outcurved between the veins, with a deep inward tooth on the sub- 

 median vein and a broader outcurve below that point. The space within this 

 line is apt to be a little paler and with a violet powdering, but this varies. T. p. 

 |ine yellowish or whitish, geminate, the outer portion of the line usually rather 

 indistinct. The line is oblique from the costa to opposite the middle of the cell, 

 then makes an obtuse angle and runs obliquely to the hind margin. A pale 

 shade extends outwardly from the line through the s. t. space almost to the 

 terminal line. S. t. line variable in distinctness, made up of yellowish or whitish 

 scales when best marked, lunulate, the teeth being outward ou the veins, irregu- 



