88 ARCTIAD.E. 



7*:. Nola apera. (riate XIX. fig. H.) 



yold opera, Dnice, Biol. Centr.-Am.. Ilet. ii. p. 404 (1807). 

 Ao/a involuta. Dvar. ,1. N. Y. Ent. Soc. vi. p. 42 (lh98). 

 h'ola cxposlfa. Dvnr, J. N. Y. Eiit. Soe. vi. p. 43 (1898). 



(rrev, slightly tinged -with brown : palpi fuscous at sides. Fore 

 wing iVroratcd with black scales ; small tufts of scales near base 

 Miurat middle and upper angle of cell ; costa with .some brown 

 points; traces of a curved antemedial line; an oblique postmedial 

 .series of dark points ; an obscure subterminal line with slight black 

 streaks on the veins ; a terminal series of dark points. Hind wing 

 whitish, tinged with fuscous towards termen. 



ffah. CvLrFORxiA, Los Angelos, type t J involuta in U.S. Nat. 

 Mus. ; Arizona, type f e.vposita in U.S. Nat. Mus. ; Mexico, .Talapa 

 (TriijiJIo), 1 cT, :i 2, type; I'anama, Chiriqui (Chcuupion), 1 c? , 

 (Jodman-Salvin Coll.; JJulivia, Chaco ; Peru, Vilcan. Kvp. 1<5 

 millim. 



Larva, Dyar, Psyclif. vi. p. 110 (hi/emails) & p. 248 {mimiseula). 

 Egg pale' green, spheroidal, much flattened at base, with large 

 contiguous depressions ; diameter -33 millim. 



Larva, 2nd stage : hea'd, cervical shield, and anal plate black ; body 

 thick : warts small, dark brown, bearing three or four short blackish 

 hairs ; colour pale whitish with diffused brown subdorsal shade. 

 3rd and 4th stages : head pale brown with black ocelli. 

 5th stage : body flattened, with three rows of large shining sub- 

 dorsal dark brown warts, the 3rd row pale, bearing spreading, long, 

 thin, white and blackish hairs ; row 1 subdorsal, two on each segment 

 on somites 1-3 ; 2 lateral, 3 subveutral with some very minute 

 warts, 4 below. Cervical shield largo, deep brown, with a whitish 

 dorsal line bisecting it; colour dirty white; a pair of broad deep 

 brown subdorsal bands, somewhat irregular, narrow on somites 2 

 and 3, and connected by a transverse bar over the dorsum on 

 somite 6 and sometimes also on somite 4 : length o millim. 



Gth stage : body wider than high, rounded, hardly tapering ; four 

 pairs of abdominal prolegs ; wart 1 very large, oblong ; 2 and 3 

 large ; 4 very small, subvcntral. Colour varying much ; ground- 

 colour nearly white or tinged with reddish ; body shaded with 

 blackish brown ; a double dorsal, two waved lateral, and a straight 

 substigmatal line ; the shading may be reduced to a few reddi.sh 

 streaks, ))ut on somites 2 and 3 tliere is always a patch of white 

 bordered by a waved subdorsal black lino ; warts pale, except rows 

 1 and 2 on somites 4-11, which are cinnamon-brown or blackish ; 

 cervical shield deej) brown, bisected; spiracles black; hair of irre- 

 gular length, longest at extremities, blackish. 

 Food-plant, Saliv. 



