NO. 1140. NORTH AMERICAN NOCTUIDAE- SMITH AND DTAR. 117 



Cocoon. — "Larva eats into wood, where it cou.structs a cocoou." 



(Riley.) 



Pupa. — Smooth, light brown, regularly tapering ; abdominal segments 

 coarsely punctured on the anterior third ; wing cases slightly sliagreeued. 

 Creniaster flat, tliin but wide, the lateral margin produced into a Aving- 

 like plate, blackish on the edge, smooth. Posteriorly the margin is 

 fluted and double. Hooks slender, pale, recurved at tip, the upper one 

 on each side on top of the plate, the lower three on each side in a row 

 situated between the two liuted rims. 



Food plant. — Willow. 



ACRONYCTA BRUMOSA Guenee. 

 (Plates XIII, fig. 1, female adult; XVII, fig. 30, leg; XX, fig. 21, male genitalia.) 



Acronycta brumosa Guknke, Spec. Geu., Xoct., 1852, 1, p. 52. — Walkek, Cat. Brit. 



Mus., Het., 1856, IX, p. 59. — Butlek, Ent. Amcr., 1887, III, p. Sd—jJersuaaa. 

 Acronycta impleta AVai.ker, Cat. Brit. Miis., Het., 1856, IX, p. 57. 

 Acronycta subochrea Grote, Bull. Butf. Soc. Nat. Sci., 1874, II, p. 153. 

 Apatela subochrea Gkote, Cau. Ent., 1875, VII, p. 227j pi. i, fig. 10. — Bi;tler, 



Ent. Amer., 1887, III, p. 36=imphta. 



Ground color very dark, powdery, ash gray. The vestiture on the 

 primaries elevated. Head with a transverse black line in front, collar 

 with a blackish line interiorly; the balance of the head and thorax black 

 powdered. The wings are mottled with smoky brown, which obscures 

 the ordinary markings. The basal line brown, geminate, complete. 

 Transverse anterior line brown, geminate, tending to become indis- 

 tinct below the middle; as a whole oblique outwardly. In some dark 

 specimens the line becomes black instead of brown. The median shade 

 is brown, best marked on the costa, where it extends oblicjuely into the 

 reniforin, is there bent at nearly a right angle and tben runs almost 

 upright to the internal margin. The latter part of its course is very 

 largely obscured, and sometimes altogetlier wanting. Transverse pos- 

 terior line geminate, the inner line only a little marked, the included 

 space paler and lunulate; the outer line consisting of a series of black 

 lunules, and as a whole being denticulated on the veins. It is very 

 nearly i)arallel with the outer margin and only a little sinuated. The 

 subterminal line is pale, irregular, broken, and diffuse. The terminal 

 space is crossed between the veins by black streaks, opposite which 

 the fringes are cut with blackish. There is a brown shading below the 

 median vein from the base to the transverse anterior line, but no dis- 

 tinct basal streak. There is a similar shading opposite the cell, and 

 another opposite the anal angle, taking the i)lace of the ordinary 

 streaks, which in some cases may be faintly traced. Between the 

 transverse anterior and median lines there is a black streak just above 

 the internal vein. The ordinary spots are traceable, of good size, but 

 not prominent; the orbicular round or nearly so, black ringed; the 

 reniform large kidney shaped, obscured by black scales. Secondaries 



