58 AMERICAN LEPIDOPTERA. 



for three-fourths its length. Ground color white, without lustre, 

 speckled with dark brown scales and dots, at a little more than one- 

 third from the base is a well-marked, outwardly curved dark fascia, 

 bordered within by an about equally wide fascia of the ground color, 

 within the latter the basal space is dotted with brown, an ill-defined 

 spot at base of costa, immediately beyond the dark fascia and a trifle 

 nearer the costa, is a dark spot, and at the end of the cell two others, 

 between the former and the upper spot at the end of cell is a series 

 of four or five more or less connected dots, forming a more or less in- 

 terrupted curved line, with the convexity towards the costa; about the 

 middle of the costa is a patch consisting of small dots and a similar 

 though smaller and less distinct patch, a little beyond the end of the 

 cell, a series of small dots at the base of the cilia, the latter gray, 

 speckled with white and dark scales. Hindwings as wide as the fore- 

 wings, costa scarcely retuse ; gray, dusted with fuscous ; cilia gray, a 

 trifle over 1. Abdomen whitish, lightly dusted with fuscous. Under- 

 side of body and legs white, anterior and middle legs suffused with 

 fuscous. Expanse 14.0 mm., 0.56 inch. 



Hab.— Utah (Stockton). 



A female specimen, collected by Mr. Tom Spalding in my 

 collection. Vein 5 of hindwing connate with stem of 3 + 4. 



Var. aimulipes. 



A specimen, female, from the Baboyquivaria Mountains, 

 Ariz., in my collection, measuring 13.0 mm. agrees well with 

 the type in markings, but differs by the hindwings having a 

 brassy sheen and the cilia are more tinged with yellow. Legs 

 white, tibiae with two broad fuscous bands, leaving the ends 

 and a band in the middle white, apices of tarsal joints con- 

 spicuously white, rest fuscous. Vein 5 of left hindwing con- 

 nate with stem of 3 + 4, distinctly from the stem in right 

 hindwing. 



36. H. spretella n. sp. (Plate IV, fig. 32.)— Palpi, head, basal 

 joint of antennae and thorax grayish-white, tinged with ochreous. 

 Palpi reaching to upper margin of the antennal insertion, terminal 

 joint two-thirds the length of the second ; speckled with fuscous scales, 

 more densely without. Antennas grayish-fuscous, not excised above 

 the base, finely denticulate and shortly ciliate beneath in the male, a 

 little more robust than in the female; basal joint rather small, pecten 

 gray. Thorax and patagia suffused with fuscous anteriorly. Fore- 

 wings rather elongate, costal margin approximately straight from base 

 to apical fourth ; ground color white, rather densely speckled with 

 dark brown from basal third outwardly, the dark scales most pro- 



