64 AMERICAN LEPIDOPTERA. 



hindwing arises from, is connate with or free from stem of 

 3 + 4. 



Closely related to punctiferella, from which it differs by its 

 rather conspicuous white color, narrower forewings and the 

 black streak in basal space. 



41. H. tartarella n. sp. (Plate IV, fig. 36.) — Labial palpi pale 

 yellowish-white, dusted with dark fuscous externally, especially the 

 terminal joint, leaving the base of the latter pale, innerside thinly 

 dusted, second reaching to upper edge of antennal insertion, some- 

 what thickened towards the apex and slightly roughened along lower 

 edge with fuscous scales, terminal joint pointed, two-thirds as long as 

 the preceding joint. Head pale yellowish-white, somewhat rough 

 scaled, more or less suffused with gray. Basal joint of antennae yel- 

 lowish-white or grayish, of moderate length and width, pecten of 

 closeset bristly hairs, shaft grayish-fuscous, not excised above the base. 

 Thorax grayish- white, speckled with pale fuscous. Forewings narrow, 

 pointed, ground color white, overlaid with grayish-fuscous as to almost 

 entirely conceal the ground color except in basal third, the latter limited 

 externally by an acutely angulated line, the angle being nearer the 

 costal margin ; this space is less suffused with grayish-fuscous, the 

 latter more marked along the margins and extreme base, and a less 

 distinct patch in the middle along the fold, ending before angle of 

 fascia in a more or less distinct spot. A dark semi-oval spot at costal 

 end of the angulated line, and an ill-defined one at the dorsal end of 

 same; just beyond the summit of the angulated line is a strongly 

 marked dark and somewhat elongated spot, two equally well-marked 

 spots at end of cell, and before the lower one of these, on the posterior 

 margin of the cell, is a more or less elongated, very distinct spot, of 

 the remainder of the wing, the darker coloring predominates more 

 along the margins and in apical part of wing ; cilia grayish-white, 

 speckled in basal half with grayish-white scales. Hindwings nearly 1, 

 costa scarcely refuse, dorsal margin feebly curved at tornus, not very 

 acutely pointed at apex, grayish-white, suffused with pale fuscous ; 

 cilia grayish, over 1. Abdomen grayish-fuscous, anal bush gray. 

 Underside of body and legs grayish-white, the latter more or less 

 densely suffused with dark fuscous. Expanse 13.0-15.0 mm., 0.52-0.06 

 inch. 



Hab. — Md. (Plummer's Island). 



Nine specimens in the Nat. Mus. Coll., all collected by 

 Mr. A. Busck at light. A sombre looking insect, markings 

 vary variable in extent and intensity. Does not closely 

 resemble any other form. 



