44 rROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxi. 



concolorous warts, secondary not immerons, similar to the primary. 

 Dorsally on joints 5, C, 7, 8, 9, and 12 a tbin pencil of black liairs. 



Stwie VI. — Head shiniug black, the clyi^eus brownisli, its suture 

 pale; width, 4.5 mm. Body greenish white, with a dorsal blackish 

 band, pulverulent, obscurely geminate, often entirely absent, except for 

 a double black mark on the cervical shield and a black spot on joints 

 5 to 13, or 5 to 9 and 12. Thoracic feet pale brown, leg plates pale. 

 Warts very small, the hair mostly secondary, short dorsally, and spread- 

 ing each way from the center of the segment; quite long laterally. 

 Dorsal pencils tapering, moderately long, broadest at base and arising 

 from a single large area representing tubercles I. The pencils may be 

 present on joints 5, C, 7, 8, 9, 10, and 12, with a trace of one on 11 or 

 else only on joints 5 to 9 and 12. All the hairs, both pencils and gen- 

 eral clothing, white or pale yellow, the pencils becoming black with 

 yellow tips, apparently at maturity, as in the case of all the hairs of 

 leiiorina. Length, 40 mm. 



Pupa. — Abdominal segments finely punctured for more than the 

 anterior half, regularly tapering; wing cases grooved and wrinkled. 

 Cremaster very short, consisting only of an elliptical wrinkled area 

 from which the hooks arise, a bunch of four or five in the upper row, 

 the central one strongest, and a line of four or five on each side below, 

 the most anterior one strongest, none much recurved. Color rather 

 light red brown, shining. Length, 16 mm. 



Food plant. — Haclcberrj'. 



ACRONYCTA AMERICANA Harris. 



(Plates I, fig. 2, adnlt; VI, fig. 17, larva; XIV, fig. 11, ovipositor female, 3; 6, thorax 

 from side; XVII, lig. 10, leg; XVIII, fig. 4, palpus; XIX, fig. 11, male genitalia.) 



Acroni/cia amerkaua Harims, Kept. Ins. Mass., 1811, p. 317; Ins. Inj. Vegetation, 



2d ed., 18.52, -p. 317; Ins. Inj. Vegetation, Flint ed., 1862, p. 136, figs. 216-218; 



Ent. Corr., 1869, p. 311, fig. 111.— -Lixtner, Twenty-sixth Kept. N. Y. State 



Cab. N. H., 1872, pp. 135-157. 

 Apatela americana Grote, Bull. Buff. Soc. Nat. Sci., 1874, II, p. 154. — Coquillett, 



Papilio, 1881, 1, p. 6. — Packard, Ins. Inj. Forest Trees, 1881, p. 111. — Grote, 



Papilio, 1883, III, p. 111.— Packard, Forest Insects, 1890, p. 397. 

 Me<iacronijcta americana Grote, Mitth., a. d. Koeni. Mus., Hildesh., No. 3, 1896, 



p. 10. 

 Phalacna aceris Smith and Abbot, Ins, Ga., 1797, II, p. 184, pi. xciii.— Guenee, 



Spec. Gen., Noct., 1852, I, p. iS=^acericola. 

 Acrorujcta acericola Guenke, Spec. Gen., Noct., 18.")2, I, p. 48. — Walker, Cat. 



Brit. Mus., Het., 1856, IX, p. 57. 

 Acronycia hastnlifera, larva, GUENEE, Spec. Gen., Noct., 1852, I, p. 47. 

 Apatela ohscura Henry Edwards, Ent. Amer., 1886, II, p. 169, pr. var. , 



The ground color is a somewhat pale, powdery ashen gray, with a 

 more or less obvious yellowish tinge, which is often entirely absent. 

 Head and thorax are slightly black i)owdered, but even in color 

 throughout. The primaries have the ordinary marks fairly well trace- 

 able, but not contrasting and hardly distinct. The basal line is marked 



