158 PROCEEDINGS OF THE NATIONAL MUSEUM. vol xxi. 



mottled and suffused over the dorsal portion of all the segments except 

 10 and 11. Sublateral and ventral portion light green, except on seg- 

 ments 2 and 4, which are tinged with red. A whitish lateral line. 

 Warts black, hairs stout, blacli; those on joint 11 shorter than the 

 others." (Thaxter.) 



Stage lY. — " Head blackish, with a yellow V shaped mark; body dull 

 black above, yellowish beneath ; a yellow lateral (subventral) liue. The 

 yellowish dorsal (subdorsal) patches on joint 11 on which the hairs are 

 short. Joints 3-5 and 12 hunched up." (Thaxter.) 



Stage V. — "Black above, deeper auteriorily. A distinct yellow band 

 beginning on joint 5, running. just below the stigmata, which are white, 

 contrasting. Feet yellow, prolegs black; dorsal patches on joint 12 

 brighter; otherwise as before." (Thaxter.) 



Stage VI. — Subventral "band orange colored; a broken yellowish 

 stripe on the base of legs; two (sub) dorsal orange spots on joint 11 

 and sometimes a pair on joint 10." (Thaxter.) 



Stage VII. — Head slightly bilobed, shining brown-black, sutures of 

 clypeus, labrum, and antennae whitish; width, 3.3 mm. Body dull 

 black, obscurely shaded and mottled. A broad obscure, diffuse, red 

 substigmatal band (V) and a faint spot on joint 11 in front of wart I. 

 Warts large, hair bristly and blackish from warts I to III, softer from 

 IV to VI; wart IV very small; tufts of tine feathery hairs from warts I 

 to III on joints 5 to 10 and 12, dark gray, in some exami)les so few as 

 to be hardly noticeable. 



Cocoon. — "Between leaves." (Thaxter.) 



Food plants. — Poplar; also various low plants. 



ACRONYCTA EMACULATA, new species. 



(Plates XIII, fig. 2, male adult; XXII, fig. 9, male genitalia.) 



Ground color a bluish ash gray, which is almost entirely overlaid by 

 smoky scales, particularly in the female. The head and thorax are 

 strongly powdered with smoky and black, without forming distinct 

 markings. Primaries with all the markings traceable, but hardly 

 prominent. Basal line geminate, black. Transverse anterior line gem- 

 inate, the outer line black, the inner smoky, almost upright, as a whole 

 a little outcurved between the veins. Median shade almost upright, a 

 little oblique from the costa through the reniform, and then close to the 

 transverse posterior line to the inner margin. The transverse posterior 

 liue is geminate; the inner line smoky, the outer black and a little den- 

 tate on the veins, included space of the palest ground color. As a 

 whole the line is rather squarely bent over the cell, and strongly 

 incurved below. Beyond this curve is a dusky shading, and the sub- 

 terminal space as a whole is a little darker than the rest of the wmg. 

 Subterminal line whitish, broken, irregularly followed by black marks 

 in the interspaces. There is a series of terminal black marks, and the 

 fringes are cut with dusky beyond them. There is a somewhat inde- 



