150 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



"The papa of this species is quite similar to tliat of otlievs of tlie genus, presenting littie 

 if any good distinguishing cliaracters. The si)eciMien in the collection is a shell only, and the 

 anterior half is destroyed by the emergence of the perfect insect. The general shape is robust 

 and the i)osterior extremity is obtusely truncate, and there is a slight obtuse undivided elevation 

 at the extreme tip.'' (Eiley ]\IS.) 



Cocoon. — "This is composed of scattering, coarse threads of reddish brown silk, in wliich 

 particles of earth and sand are incori)orated. Length, 25 nun.; width, 10 mm." (Riley MS.) 



HuhilH. — It occurred on Qiicrrns albu October 7, at Providence, when it began to pupate, the 

 moth appearing the following June. The larva is less common than that of Xadnta gibbom. 

 Abbot and Smith remark that in Georgia it "feeds on the overcup oak and other kinds of the 

 same genus. Some went into the ground May .30 and came out the 1.5th of June. Others that 

 went in the 10th of October remained till the 20th of April." From this it appears that in the 

 Southern States this species is double brooded. 



Dr. Harris found it at Milton, Mass., June 17, "inactive on trunk of an oak." Larva occurs 

 in September and October; the moths in June, July, and August. (Riley). 



Food 2)f(i'»ts. — Different species of oak. 



Geographical distribution. — It ranges from Massachusetts (Harris) to Georgia (Abbot) ; Ithaca, 

 N. Y. (Mrs. Feruald); Plattsburg, N. Y. (Hudson); Texas, Missouri, Georgia, and District of 

 Columbia (U. S. Nat. Mus.); Elaine, Massachusetts, Georgia (French); New Jersey, Arkansas 

 (Palm); Illinois, Florida (Streckcr). 



Lophodonta ferrugiuea Paikaril. 

 (PI. IV, figs. 1, 2.). 



Lophodonta fernujinea Pack., Proc. Kiit. Soc. Phil., iii, p. 357, 1864. 

 Grote, Check List X. Aniev. Lep., p. 19, 1882. 

 Smith, List Lep. Bor. Amer., p. 30, 18i)l. 

 Kirby, S.vii. Cat. Lep. Het,, i, p. 602, 1892. 



Neum, aud Dyar, Trans, Amer, Eut, 8oc., xxi, p. 196, Juue, 1894, Jouru. \, Y, Eut, Soc. ii, 

 p. 115, Sept., 1894, 



Larva. 

 (PL XVIII, iigs, l-4c.) 



Thaxter, Can. Ent., xxiii, p. 34, Feb., 1891. (Food plant .stated.) 

 Diiar, Proc. Bost. Soc. Nat. Hist., xxvi, p. 394, Nov., 1894. 



Moth. — $ and ? . Ferruginous or brick-red, with blackish ashen scales. The head and 

 prothorax are blackish ashen, while the red of the thorax, together with most of the fore wings 

 is ferruginous; the latter are ferruginous at base, interrupted on the costa by two short white 

 lines fornung the end of a single line. Beyond is a dark band shaded within with ashen, and lined 

 without by four rusty, whitish luuules, margined beyond by a ferruginous line. Toward the 

 costa beyond this line and within the twin united rusty white discal spots are some transverse 

 irregular whiti.sh patches. The outer third of the wing is darker than the middle, while the 

 veins are almost black. There is a siibmargiual waved lunate rusty white line, and while the 

 fringe is dark, there are some white .scales, and, what is generally not the case, the ends of the 

 venules are white. The tuft on the inner margin of the wing is broad and dark. 



Hind wings rusty white, with art obscure middle band which becomes brown toward the costa, 

 which is margined without with whitish; beyond these is a broad dusky band, most distinct upon 

 the costa, where it is twice waved, and limited externally with a short white line. The margin is 

 black, while the fringe is dusky cinereous and concolorous with the abdomen. 



Beneath, the body is much lighter in hue, and the wings- are still paler, being dirty white and 

 crossed by a common middle obscure dusky line, while the margin next to the fringe is dark brown 

 and interrupted by venules. 



Exi^anse of wings, $ , 4.") mm.; length of body, 3 , IS mm. 



This species is closely allied to the European L. droiiicditriiis, not being congeneric with the 

 European A. zizac, which is a true Notodonta. Lophodontit pUimasit Edwards is a species of 

 Heterocampa. 



