150 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



"TIk- ]Mip;i of this sjn'cit's is ([uitc similar to tluit of others of tlie genus, presenting little 

 if any good (listinguishing cliiiriicters. Tiie specimen 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 posterior extremity is obtusely trnncate, and there is a slight obtuse undivided elevation 

 at the extreme tip."' (Riley MS.) 



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

 particles of earth and sand arc incorporated. Length, 2,5 nun.; width, 10 inni." (Riley IMS.) 



JIfihita. — It occurred on Qucrcns alba O(!tober 7, at Providence, when it began to pupate, the 

 moth appearing the following June. The larva is less common than that of Xadafa gihbom. 

 Abbot and Smith remark that iu 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 tlie Kith of October remained till the iiOth of April." From this it appesirs that in the 

 Southern States tliis species is double brooded. 



Dr. narris 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. (Kiley). 



FiHiii plants. — Different species of oak. 



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

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

 Columbia (IT. S. Nat. JIus.); Maine, Massachusetts, Georgia (French); New Jersey, Arkansas 

 (Palm); Illinois, Florida (Strecker). 



Lophodonta ferrugiuea I'.ackanl. 

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



Lophodiiiila fcrrufiinca Pack., Proc. Ent. Soc. Phil., iii, p. 357, 1864. 

 Grote, Check List N. Amer. Lep., p. 19, 1882. 

 Smith, List Lep. Bor. Amer., p. 30, 1801. 

 Kirby, Syn. Cat. Lep. Het., i, p. G02, 1S92. 



Neum. aud Dyar, Tr.aus. Auier. Ent. Soc, xxi, p. 196, June, 1894, Journ. N. Y. Eut. Soc. ii, 

 p. 115, Sept., 1894. 



Larva. 

 (PI. XVIII, (iss. l-4o.) 



TkuTler, Can. Ent., xxiii, p. 31, Fob., 1891. (Eood plant .stated.) 

 Ihj<ii-, Proc. I5ost. Soc. Nat. Ili.st., xxvi, p. 394, Nov., 1894. 



Moih. — i and 9 . Ferruginous or brick-red, with blacki.sh 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, interrui)ted on the costa by two short white 

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

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

 costa beyond this lino and within the twin united rusty white discal si>ots are some transverse 

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

 veins ar<; abnost black. There is a submarginal waved lunate rusty white line, and while the 

 fringe is dark, tlierc are some white scales, and, wliat 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 an obscure middle band which becomes l)ro\vn toward tlie costa, 

 which is margined without with whitish; beyond these is a broail diislvy 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 coiuiolorons with tlu^ abdomen. 



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

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

 and interrupted by venules. 



Expanse of wings, i , -l.T mm.; length of body, 3 ,1S mm. 



This species is closely allied to the European L. (h-omedarius, not being congeneric with the 

 European .A', zizac, which is a true Notodonta. Jjojihodonta, pJxmona Edwards is a species of 

 Heterocampa. 



