146 MEMOIIIS OF TOE NATIONAL ACADEMY OF SCIENCES. 



(Hudson); New York, Wisconsin, Ohio, Missouri, Alabama, Colorado, and California (F.S.Nat. 

 Mus.); Maine, Massachusetts, New York, Pennsylvania, Ohio, Wisconsin, Carbondale, 111.; Nortb 

 Carolina, New Mexico (French); Dallas, Tes. (Boll, Mus. Conip. Zool.); Topeka and Manhattan, 

 Kans. (Popenoe); Racine, Wis.; Chicago, 111. (Westcott); Colorado Springs, Colo., June I'.j 

 (Gillette); Yo Semite, Cal.; Portland, Oreg.; Seattle, Wash.; Nanaimo, British Columbia (Dyar). 

 It thus appears to extcnil throughout the Appalachian, Austroriparian, and Campestrian 

 subprovinces; whether it occurs in the Mexican (Sonoran) subprovince remains yet to be 

 determined, as well as its extreme northern limits. 



Lophodonta Piickaril. 

 (I'l. XI>I, iigs. 2-3, venatiou.) 



rhahcna (in part) Abbot and Siuitb, N:it. Hist. Lep. Georgia, p. 1(J5. Tab. LXXXIII, 1797. 

 Peridca Stephens, 111. Brit. Ent. Haust , ii, p. 32, 1829. 

 Xotodonta (in part) Walk., Cat. Lep. Br. Miis., v, p. 995, 1S55. 



Herr-Sohaeft'., .Samiul. aussereur. Scbaiett., ]). 6(5, 1855. 



Morris, Synopsis Lep. N. Anier., p. 239, 1862. 



growth takes place; the color becomes green with a yellow subdorsal line ninch as in the mature larva. The body 

 is transversely creased. Duration of this stage about lour days. 



Xonnril Stage II. — Not exhibited iu any specimen seen by me, and probably does not occur. 



Normal Stage III (second stage). — Head large, slightly bilobed. narrowing a little to vertex and tlattencd in 

 front, pale green, hardly shiny, mouth white, ocelli and tii)s of jaws black; width, 1.4 to 1,5.3 mm. Body slender 

 smooth, no perceptible hairs: legs normal, green, somewhat shiny; a broad yellowish green subdorsal line; spiracles 

 black. 



Xurmal Stage I V {third stage). — Head .as before; Avidth, 2 to 2.35 mm. Body slender, uniform green; a. very 

 distinct, rather broad, pale yellow, subdorsal band from joint 2 to the anal plate ; spiracles black, faintly snrronnded 

 by yellowish. Scattered, very small, and short set:c. 



Xiirmal Stage /r (fourth stage iu same larva>). — Head large, Uattened in front, very slightly bilobed, smooth, 

 not shiny, pale green; ocelli black, labrum white, jaws black at tips, otherwise green; width, 2.7 to 2.8 mm. Body 

 transversely cre.ased, leaf-green, with yellow piliferous dots bearing very small seta'. .\ slightly darker dorsal line 

 and broad yellow subdorsal line from joint 2 to the end of the anal plate. Spiracles black, with small white 

 centers. 



yormat Stage F (fourth or fifth stage). — Head shaped as before, pale green, not shiny; ocelli black on a white 

 ground, labrum white at tip, jaws green tipped with black, auteunai yellowish; width, 3.2 to 3.7 mm. Body 

 yellowish green with many yellow irregular elliptical granulations and a distinct broad yellow subdorsal line, 

 continuous from joint 2 to joint 13 and bordering the anal plate, which is rounded. .loint 2 is narrowly edged with 

 yellow in front. .Spiracles dark broivu, (laler centrally. Feet green, without any yellow spots. 



Xormul Stage VI (fifth or sixth stage). — Head full, rounded, slightly shiny, and absolutely shagreened; jiartly 

 retracted under joint 2; uniform leaf-green, ocelli black on a white ground, inoiith-parts whitish, jaws straw- 

 yellow, tipped with black; clypens small, triangular; width, 4.6 to 4.8 mm. Body cylindrical, full, and rounded, 

 tapering slightly to the last segment, which is smaller than the rest, leaf-green or whitish green, densely covered 

 with white, irregular, flattened elliptical granulations, which on the venter become transverse streaks. In specimens 

 in which the ground color is suft'used with whitish, joint 2, joint 13 posteriorly, and the anal feet remain leaf-green. 

 A broad, distinct, white subdorsal line, faint on the anterior part of joint 2. The anterior edge of joint 2 and the 

 border of the anal jilate are bright yellow. Feet green, the abdominal ones covered with white granulatious, and 

 a wnite line before claspers. Spiracles orange-rod, faintly bordered witli white. The edges of the white subdorsal 

 band are not even, but more or less incised, on the anterior segments being narrowly broken into contiguous elliiitical 

 areas, or iu some specimens broken throughout the whole length. 



Cocooti. — The larv;e enter the ground to pupate and form a rough cocoon of a few strong silken threads. 



Pupa. — Cylindrical, tapering, rather thick posteriorly to the thorax, the ends rounded, most so anteriorly;, 

 movable sutures of abdomen deep; cremaster long, rather thick, tapering, and ending in two short divergent points. 

 Body shiny, ,densely punctured; cases creased and also shiny. Color black, with a shade of brown on the abdomen. 

 Lengtii, 22 mm. ; width, 7 mm. 



Food plant.— Mla.c'k oak {Quercus l{cUoggii Newberry). 



Nadata oregonensis is not well distinguished from N. gihbosa Sm. A Abb., especially in the iarviil stiite. It seems 

 to be related to gilibosa much as Papilio riitulus is related to P. turnus among the butterflies. Its habitat is very 

 probably coexten.sive with that of its food plant, which is said to be "on the coast ranges and on the western slope 

 of the Sierra Nevada throughout California and as far north as the middle of Oregon; on mountain sides and 

 summits only or in the elevated v.alleys, not on the plains or near the sea.'' Mr. Edwards recorded it from Siskiyou 

 and Butte counties, and I found it in Mariposa County and at Portland, Oreg., but I am not awaie that any record, 

 of its capture in the coast ranges has yet been made. 



