248 MEMOIRS NATIONAL ACADEMY OF SCIENCES. vol. xii, 



Body pale delicate pea-green, with a fine whitish bloom or powdery effect. Head yellow- 

 ish green, turquoise on the labrum and base of antennae. All the dorsal tubercles delicate 

 turcpjoise, base faintly yellowish-green. Those of infraspiracular row and the lowest thoracic 

 row deep black at base, the dorsal tubercles all alike, both thoracic and abdominal; those on 

 ninth abdominal segment a little shorter. One or two of the longer of the three to four termi- 

 nal [spinules] are slightly longer than the tubercle is thick. Usually two of the four terminal 

 [spinules] are short and sharp, the two others longer and more hair-like. 



The four dorsal prothoracic tubercles are flattened, transversely oval, polished bosses, the 

 inner two giving rise to two setae and the outer two to four to six seta 3 , all black. Prothoracic 

 shield straw-yellow and segments 9-10 and central part of anal legs straw-yellow with a 

 greenish tinge. 



Horn on eighth abdominal segment a third thicker than the other abdominal tubercles, 

 the tip distinctly bifid, though the sinus is shallow, with four [spinules] on each side. 



All the four dorsal tubercles on each segment, thoracic and abdominal, arise from a 

 transverse distinct ridge. On prothoracic plate a minute black spot on each side; two median 

 black dots on [mesothoracic segment] one behind the other, one only on metathoracic segment, 

 none on first abdominal segment, but on [each of] segments 2-9 is one, each situated on median 

 line, just behind the ridge, those on hinder segments largest. Between the dorsal and sub- 

 dorsal rows of tubercles are two black dots and three black dots (one triangular) near the 

 black spiracles, one hi front of and two behind the spiracles; sometimes (segments 4 and 5) 

 the two nearest the spiracles are wanting. A black dot at base of thoracic and two at base 

 of each abdominal legs. Thoracic legs yellowish, abdominal legs of four middle pairs turquoise 

 at base. Most of legs honey -yellow and planta pale soft greenish turquoise. 



Anal legs honey-yellow in middle, but lower and inner edge turquoise. 



Suranal plate regularly triangular, the surface smooth, with no minute papillae and hairs, 

 but near the end are two broad flattened low turquoise tubercles, each bearing about eight 

 minute papillae; between and behind there are minute papillae with black fine setae. 



On prothoracic segment lowest small tubercle is all black, and those of the lowest lateral 

 row are black at base like those of infraspiracular row. Only differs from B[ridgham] drawings 

 in there being but a single dorsal instead of two black dots on median line of each segment, and 

 hairs are all black in pryeri. (are they white as Bfridgham] represents in normal cynthia ?) and 

 B[ridgham]'s abdominal legs are all yellow, no turquoise at base or on planta. 



Pryeri cocoons. — One like cynthia in a leaflet of Ailanthus, with a well-developed stem, but 

 tne outside of the cocoon is all salmon-red and surface more corrugated. Joutel says the color 

 changes to that of cynthia after it emerges. 



PHILOSAMIA IOLE (Westwood). 



Type, from Assam, in Oxford Museum. Wings remarkably narrow; hind wings half as 

 wide as usual; discal spots nearly effaced by a broad diffuse whitish band; no basal crossband. 



PHILOSAMIA LUNULA (Walker). 



Plate XLVIII, fig. 5; LXXVII, fig. 2; LXXXVIII, fig. a; XCIII; figs, tj, g, h, i. 



Attacus lunula Walker, Cat. Lep. Het., V, p. 1221, No. 18, 1855. 



Pkilosamia lunula Butler, Illustrations of Lep. Het. Brit. Mus., V, p. 60, PI. XCIV, fig. 1, 1881. 



[Attacus ricini B.VTT., J. Agric. Hort. Soc. Ind., XIII, p. 71 (1863); cf. W. F. Kirby, Cat. Lep. Het., 1, p. 748.] 



[Saturnia arrindi Royle, Rep. Paris Exhib., Ill, p. 216 (1856); cf. W. F. Kirby, 1. c] 



[According to Rothschild, P. guerini (Moore, 1859) from Bengal and P. obscura (Butler, 

 1879) from Cachar are "aberrations" of P. lunula; cf. Nov. Zool., II (1895). Jordan (1911) 

 has described P. lunula fulva, placing it in Samia.] 



Imago. — One o* from Assam. Antennae with shorter pectinations than in P. cynthia 

 (American race), being 4£ mm. in width. Palpi much shorter than in cynthia, not visible, as 

 the front of the head is so hairy, they can only be seen by pushing away the hairs, while the 

 tongue of the American race of P. cynthia is visible ; it is not to be seen in my single example of 



