MEMUIKS UF THE NATIONAL ACADEMY UF SCIENCES. 93 



T.drni. 



I'l. Ill, tigs. 4, 4:i; XVI, fiL'. 4; XI. VII, ligs. 1, l-i-lc. 



Stall, Supplement Cramer, Papillons K.xot., PI. 22, lig. 4. 17S2. 



Sr/ip, Papillons tie guriiiam. III, I'l. lis, larva and pupa. 



Not BdMitial, AiinaU's Soc. Knt. Bi-ltritnie, XV, p. 81. 1872. 



Biirmei.tkr, La descripticiii physiqui- de la Rt'-publiiiuc Arsrentiiie, Lep., atlas, PI. xix, fig. 4. 1879. 



Pelcrs, Die Heterocerfii-K:ui|n'n ( Scliriidi-r I, p. 10, Tat", iii, tig. 2, 2a. 1901. 



liiitu/o. — 2 $,'22. l>c)dv and \v'm<;s pale fawn cDlor or hi'owni.'^li oc-horoii,-^. Abdomen of 

 the same hue as the head and thorax above and below. Leg.s darker, becoming purpli.sh on the 

 outside of the tibiw and tarsi. 



Fore wino;s fawn color within and a little darker beyond the extradiscal line. Ba^^al line 

 obscure, a little irrei^ular, oblique, slightly curved outward behind the costal edge. Extradis- 

 cal line light brown. c>blitiue. not sinuous in S . very slightly sinuous in 9 . Apex of $ very 

 acute, below the apex the edge is excavated, leaving a projection in the luiddle of the wing, while 

 between this and the iiuier angle of the wing is a rather deep hollow subdivided into two sinuses; 

 in 9 outer edge moderately convex, not scalloped. In S the outer margin beyond the extra- 

 discal line is .somewhat darker than the rest of the wing, and with scattered obscure dusky strigie, 

 while along the middle of the wing is a hoary jHirplish or lilac discoloration, which in 9 is 

 wanting. 



Hind wings of the .same hue as the anterior pair, but reddish pink in the middle of the wing 

 extending frotn near the base of the wing to the extradi.scal line, but not reaching the costal or 

 inner edge, which is pale ocherous. and of the same hue as the outer edge of the wing beyond 

 the extradiscal line. A large black discal spot, a little larger and rounder in 9 than in 1 . The 

 extradical line is definite and a little curved in i , in 9 much wider and more diffuse, and merging 

 into the pink area. Beneath, the fore wings are stained deep roseate in the middle, including the 

 large discal spot: extradiscal line pink behind, becoming wider, more diffuse, and tawny ocherous 

 toward and on the costa. 



Hind wings beneath with no pink and no lines, the extradiscal being obsolete or quite faint, 

 and when visible broad and diffuse. In the S the a))domen is slightly ringed with dark ocherous. 

 The genital armature is as represented on PI. lix, tigs. 3, 3rt; as there is no other species of the 

 genus known, the specific characters can not be drawn up with precision. 



Expanse of fore wings, i 90 mm.; 9 120 mm. Length of a fore wing. <J inuim; 9 .5.") mm. 

 Breadth of a fore wing, $ 20 mm.; 9 25 mm. Length of hind wing, $ 24 mm.; 9 S-t mm. 

 Breadth of hind wing, S 10 mm; 9 25 mm. 



Gcograplucal dhirlhutlun. — Jalapa. Mexico (O. T. Barrett); Mexico (H. Edwards). The 

 following localities are given by Druce: Costa Rica (Van Patten, Gabb, Mus. Druce); Panama, 

 Yolcan de Chiriqui (Arce in Mus. Druce); Colon (Boucard, Mus. Druce); Guiana. Surinam, Brazil, 

 Trinidad, West Indies. He adds that the examples from Costa Rica are the darkest and agree 

 fairl}' well with Cramer's figui-e. The .specimens from Panama agree well with those described 

 bv" Grote and Robinson, which Mr. Edwards apparently received from the eastern coast of INIcxico. 

 It is recorded from South America by Sepp and by StoU; from the Brazilian coast at Rio by Bur- 

 meister. Peters states that it is tolerablj- common at Novo Friburgo, a town 3(i miles north- 

 west of Rio de Janeiro, and he adds that its southern range extends to La Plata. 



IlalnU. — Regarding the breeding habits of this interesting moth Mr. Otis "W. Barrett writes, 

 under date of May 12, iy<iO, '• Eggs of SyssphinxmoUna are hatching to-day" (twelve da}'s incu- 

 bation); "'oddest looking fellows imaginable." 



H(l(f. — It is very large compared with that of Anisota, being 2 nun. in length and 1.8-1.9 mm. 

 in width. It is clo.sely similar in shape and nearly- as large as those of Eacles iinperialis and 

 C. reg(ili'<, being flattened, oval, elliptical. The surface with obscurely hexagonal areas, and from 

 a central boss arises a slender, fine hair, which projects into the interior of the egg, precisely as 

 described under Eaeles imperialis. 



