■90 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



Larva. — Body Tioctuifoim, tapering toward eacb end; smooth, entirely unarmed. Head 

 rounded, sniootli. witli a black stripe on each side. Body with a subdorsal yellow line on each 

 side of back, otherwise pale green, or with several dorsal pink patches. 



Freshly hatched larva with a large round head, wider thau the elongated body, which tapers 

 toward the eud; segments smooth, sutures deeply impressed; glandular hairs short, minute, 

 ending in three prongs; no lines or spots. 



Cocoon. — Slight and thin, spun between leaves. 



Pupa. — Flattened, oval, rounded obtusely at each eud; cremaster obsolete, with no traces of 

 spines. Color darker than usual. 



Geof/raphical distribution. — The sjiecies range throughout the Appalachian Subprovince into 

 the Hudsoniau fauna, and westward occur in the Campestrian Subprovince. Xone have yet been 

 found south of the thirty-second parallel of latitude, either on the Atlantic or Pacific slopes of the 

 continent. The genus also extends over Eurojte, being represented by a single species {('I. crcnafa) 

 ■which inhabits England and Europe, exteniliug eastward into central Kussia and doubtfully into 

 Spain. One species (C. Uturata Walk.) inhabits Silhet and India (Madras). 



It is divided into two sections, as follows: 



SYNdPSIS OF THE SPECIES. 



I. Thorax with no tuft: in himl wind's the two branehus of the subcostal vein short, dark ash-gray, with a 



ilull luteous median baud on fore wiujjs G. septentrionis 



Paler ,uray, luediau baud on fore wiujrs clearer aud i)aler clay-yellow G. n-rhjlitii 



II. Thorax usually with a tuft; head rather small; jialpi feeble; the two branches of the subcostal vein of 

 liinol wings long. 



Mouse color; no discal spots; autenn;p almost plumose G. lintnei-i 



A dorsal thoracic tuft, and a bright, distinct basal and discal spot G. seiera. 



Sectio>^ I. 



The differences between this section and the second are brought out in the desciiption ol' the 



latter. 



Grluphisia septentrioiiis Walker. 



(PI. I, figs. 1, 2, 3, 4; VII, tig. 1; VIII, tig. 6.) 



Gliiphisia? septentrionis Walljer, Cat. Lep. Het. Br. Mus., v, p. 1038. 1855. 

 Gluphisia trilineata Pack., Proc. Eut. Soc. Phil., iii, p. 355, 1864. 



Grote, Check List Lep. X. A., Moths, p. 18, 1882. 



Smith, List Lep. Bor. Anier., p. 30, 1891. 

 Ddsychira daiideslina Walk., Can. Nat. andGeol.,vi, p. 36, 18G1. 

 Gluphisia chindesliiia Grote, Can. Ent., ix, p. 27, .Ian., 1877. 

 Not Gluphisia triliiieala Pack., 5th Kep. U. S. Enti Com., 270, 1890. ' 

 Gluphisia scptenln.malis Dyar, Can. Ent., xxv, p. 303, Dec, 189'3. 

 Kirby, Syn. Cat. Lep. Het., p. 593, 1892. 



Xeum. and Dyar, Trans. Amer. Ent. Soc, xsi, p. 193, .June, 1894. 

 Kace qiiiiiqKelinea, Dyar, Ent. News, iii, p. 158, 1892. 



Larva. 



(PI. Vlir, tigs. 1-5.) 



Edwards and Eliot, Papilio, iii, p. 129, 1883. (Brief description.) 



Dyar, Psyche, vi, 14G, Sept., 1891. (Describes egg and last stage, also cocoon aud pupa.) 



Edirards, Bibl. Cat. Transf N. Amer. Lep., p. 68, 1889. 



BciileiimiiVer, Bull. Amer. Mus. Nat. Hist., iv, p. 67, 1892. (Last stage described.) 



Moth (0 3, 2 9 ). — Head, thorax, and abdomeu ash-gray, varying in being darker or paler. 

 Fore wings usually lighter than the thorax, with a short basal dark line composed of two scallops, 

 one on the subcostal vein, the other situated in the median interspace, inclosing aud bordered 

 with whitish gray, beyond which is a broad dark diffuse baud crossing the wing; the third or 



' The larva referred to as living on the elm is Seirodonta bilineata. See also pp. 452, 665. 



