— 128 — 



Exterior margin of primaries excavate between the veins. Thorax and 

 abdomen nearly concolorous with the primaries, the thorax sometimes paler. 

 The patch on the head and anterior portion of the thorax pale brown, with an 

 ocherous tinge on head and collar, often contracted laterally at the middle of 

 the thorax. Primaries pale testaceous, a slightly darker shade on the costal 

 half, quite thickly sprinkled with brown scales. Discal spots usually present 

 in the female, but rather obscure, fainter in the male; the outer spot elongate, 

 the inner round, composed of brown and whitish scales, slightly elevated. 

 Five light brown transverse bands and apical streak, the first curved, in some 

 specimens dislocated a little at the costa, the rest nearly parallel; all but the 

 fifth obsolete at the costa and the fourth often faint, especially in. the male. 

 The apical streak starts from below the apex, and is then angulated down- 

 ward, in some examples nearly parallel to the fourth line, often with the upper 

 part obsolete. Fringe brown. Secondaries very pale testaceous, unicolor- 

 ous. Wings below as secondaries above, but primaries have a slightly darker 

 tinge towards the apex and fringes. Expanse ci" 44 — 45 nim.; 9 45 — 53 "''"''• 



The species is close to D. nihiistra, but is ciistinguished by its 

 pale, nearly uniform colored primaries, and pale secondaries. 



Prof. Riley informs me that he intends to describe the larval 

 stages when his description of the species appears. 



From Santa Clara County, Cal. 



Datana drexelii Hy. Edwards. 



Hy. Edwards, Papilio, vol. iv, p. 25.* 

 Beut., Can. Ent. vol. xx, p. 57.* 



As Mr. Edwards' description is wholly comparative, I give one 

 in full: 



Head and thoracic patch tawny brown, the latter darker posteriorly and 

 sometimes constricted. This is a variable character; the rest of the thorax 

 is concolorous with the fore wings. Abdomen pale reddish brown, the tip 

 sometimes darker. Fore wings excavate between the nervules on the outer 

 margin, pale yellowish brown, much the color of D. miiiisira and distinctly 

 irrorate with dark brown scales, whicli are tliickest below the median vein, 

 inside the second band. The costal portion above the median vein and before 

 apical streak is dull fulvous, contrasting with the rest of tlie wing and mainly 

 lacking the irrorations. Five transverse dark brown lines as in allied species, 

 somewhat variable in position and shape, the three central ones obsolete on 

 the costa; a round central discal dot and the discal cross vein largely covered 

 with dark scales. These two spots appear somewhat darker than the lines, 

 while the second line runs beyond, through or nearly inside the outer discal 

 spot. Fnnge dark brown. Hind wings largely shaded with brown, but paler 

 at the base; underside as in D. }iityor. Expanse 45 — 55 mm. 



The larva is black, joint 2 wholly yellow, the stripes citron- 

 yellow and confluent posteriorly. 



Food-plants: Witch-hazel and Huckleberry ( Vacciniinn). 



