100 PROCEEDINGS OF THE NATIONAL MUSEUM. 



band mostly yellow, dark in the darkest part, the pattern recognizable; 

 width of head, l.U mm. 



Stdijc r. — Head bilobed, green, yellowish above, the apices of the 

 lobes dotted with dark brown, running down on the outer angle; width, 

 about -5 mm. l>ody humped up at joints 4-5 and 12, a little angularly 

 enlarged. Sides green, a dark-brown dorsal band, edged with yellow, 

 on joints 15 to 13, slightly widened on joint .1, but not reaching wart II 

 till joints 8-12, where it widens to between warts II and III, gradually 

 contracting till it just covers II on 12; narrowly continued to the end 

 of the body. On joints S and 9 it is shaded with black centrally, no 

 green inclosed patch, but a faint paler, scarcely whitish dorsal line. 

 Warts small, several haired. Hairs blackish dorsally, pale subven- 

 trally, with a few secondary ones. Some minute brownish pile dorsally. 



Ma</e VI. — Head bilobed, narrowing to the vertex, green, the a])ices 

 of the lobes dark chocolate brown, si)otted down the face; width, about 

 :i mm. Joint 12 with a sharp hump, warts I and II in a square. 

 Markings as before thiougliout. 



tSta(/r VII. — Head green, the apices of the lobes nariowly sordid 

 I)urplish brown, shining, a few black dots; the color shades <lown the 

 angles in mottled spots on a yellowish ground, reaching about halfway 

 to the ocelli; width, 1.2 mm. liody clear green, a little whitish frosted 

 down the sides. Dorsal band on joints 3 to 1.'5, chocolate l)r()wn, 

 slightly milky, very narrowly yellow edged. It is widened on joint 3 

 centrally where it begins sharply; cervical shield all green; the band 

 passes inside tubercle I on joint 4, just covers I by a slight expansion 

 on joints 5 to 7, then widens between II and III on joints 8 to 10, just 

 over II on 11, and narrows further to the square top of joint 12; still 

 narrower to the end of joint V.\\ end of anal plate green. Joints 8 and 

 9, especially the warts, sliglitly shaded with blackish. Spiracles white 

 with black rim. Hair quite long, but very line and sparse, black from 

 I to III, the rest whitisli, as also a few secondary hairs subventrally. 

 A numbc. of small whitish dots on the sides. Skin minutely spinulose. 



Food planU. — Hickory, oak, chestnut. 



ACRONYCTA MANSUETA, new species. 

 (Plates XII, (ij;. 7, male adult; XXI, lig. 13, male jienitalia.) 



(Jround color a bright bluish gray, very smooth and even. Head 

 more or less marked with brown, not forming distinct lines. Collar 

 also mottled with brown, forming an indefinite band at the base and 

 another one near to the tip, the edge being nuirked by lighter scales. 

 The disk of the thorax is sometimes a little darkei-, but more usually 

 of the ground color. The patagiae are marked with black at the 

 base of the wing. Primaries with the ordinary maculation lairly evi- 

 dent, but not very strongly marked. The basal line is feebly indicated 

 on the costa, sometimes single, sometimes geminate, but always one 

 line much stronger than the other if both are present. The transverse 



