MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 211 



Larva. 



PL XXVII, tig. 3. 



r/iaj-(e)'. Can. Eut., xsiii, p. 34, 1891. (Food plant given.) 



Thaxler. quoted by Dijar, Psyche, vi, p. 177, Nov., 1891. (Brief description of larva.) 



lUiar. Proc. Bost. Soe. Nat. Hist., xxvi, p. 397, 1894. (Stage IV described.) 



Moth. — Three S . Very closely related to »S'. concinna, difleriiig cliietiy iu the more produced 

 fore wings, with the outer angle more oblique, and iu its larger size. Head aboye and thorax 

 ash-gray, with a slight olive-green tint, behind reddish brown, as in .S'. concinna. Fore wings much 

 produced toward the apex, the outer edge very oblique. The markings and shades and discolora- 

 tion absent, exactly as in 8. concinna, including the costal region, the internal region, and the 

 position, shape, and color of the round black discal dot. The iuternal region or margin of the 

 wing is less black than iu 8. concinna, and more as in »S'. badia, but darker and claret reddish; the 

 costal region is more distinctly marked with oblique dusky streaks than most of my examples of 

 8. concinna, and in this respect tiie eosta is marked more as in badia. Tiie long narrow blackish 

 basal streak on the submediau fold as iu S. concinna. Hind wings whitish, with a large dusky 

 patch at the internal angle. The underside of both wings pale whitish aud marked as iu 8. 

 concinna. 



Expanse of wing, i 48 mm.; length of body, S 18 mm. 



Grote, in his description, compares this moth with 8. badia, and does not refer to its close 

 resemblance to (S. concinna. It differs entirely from *S^. badia in its round discal dot, that of 8. badia 

 being long and linear; the thorax aud wings are less reddish brown, and the wings are much 

 more elongated toward the pointed apex. 



Larra. — Dyar, who regards (Psyche, November, 1801, p. 177) this species as "improperly 

 referred to Oildemasia,'' and places it " next to 8. lejHitioides and near Janansa," quotes the following 

 brief description of it from a letter from Dr. Thaxter: 



(Edcmasia eiimia resembles Crclodaxi/s lci)liiwi(lcs in coloring, bnt structurally is perhaps more like biiinttntiis 

 {ijwme(t). When at rest it is greatly hunched anteriorly, and the furcate prominence on segment 4 is very long. I 

 should say it was surely a Ccelodasys. 



I copy Dyar's description of Stage IV of this species. He states that the "larva superticially 

 greatly resembles 8chizura Icptinoides, and was at first mistaken for it." 



^'■Fourth larval stage. — Head high, slightly bilobed, flat before; sordid whitish with a vertical 

 band on each side composed of brown-black dots confluent in streaks, continuous on its posterior 

 edge but breaking up inwardly, the pair connected across the median suture by three more reddish 

 but similar bands, which are indented ou the suture and, joining there, border the clypeus. 

 Markings on side of head also reddish, dotted, confusedly, broadly reticulate. Width, 2.3 mm. 

 A long, nutaut ])rocess on joint 5 i)receded by an elevation on joint 4; a slight hump on joint 9 

 and a little larger one on joint 12, bearing the whitish tubercles 1. Sides of joints 2-4 sordid 

 whitish, confusedly reticulate with bauds of reddish dots which become blackish stigmatally and 

 dorsally, forming a narrow stigmatal and dorsal band. Body pale brown, faintly marked with 

 dots of red-brown or blackish. V-mark distinct, pale yellow, with no inclosed dot. There is a 

 velvety brown-black subdorsal shade, irregularly touching the region of tubercles 1 and 2, 

 beginning in a narrow line on the side of the process ou joint 5, becoming more and more 

 pronounced posteriorly till it fills iu all the si)ace around the V-mark. Joint 12 is again lighter, 

 the brown shade forming a pair of narrow lines on the anterior side of the hump, but obtaining 

 again on joint 13. Trace of a lateral line, but broken and diffuse. A distinct substigmatal line. 

 Abdominal feet ou joints 7-10 pale, marked with reddish mottlings, the claspers vinous. An 

 obli(iue brown line runs from base of the horn on joint 5 to the anterior side of the foot on joint 7, 

 and another, subventrally, from below the hump on joint 12 to the posterior side of the foot ou 

 joint 10 and, continued back subventrally, ends on the anal foot. Seta? short, rather dark. 



" Fifth stage. — Much as before, but the process ou joint ■i is pronounced, leaning backward to 

 touch the horn on joint 5; width of head, S.-j mm. There is a trace of a hump only on joint 8. 

 V-mark distinct, pinkish, with centering red lines, but remaining narrow, not diffuse. Dorsal 

 shade mossy olivaceous brown, distinct only ou joints 9-13, often quite greenish on joints 10 and 



