THALBSA. HALI81D0TA . 



145 



Genus THALESA. 



Type. 



Thalcaa, Schaus, Journ. N. York Eat. Soc. iv, p. 136 (189G) citrina. 



Proboscis fully developed ; palpi upturned, not reaching vertex of head ; 

 antenntu of male bipectinate with moderate branches, of female with short 

 branches ; tibije with the spurs moderate ; abdomen dorsally clothed with rough 

 hair at base. Fore wing with vein 3 from well before angle of cell ; 4, 5 from 

 angle; 6 from upper angle ; 7, 8, 9 stalked ; 10, 11 from cell, male with the 

 inner margin much lobed. Hind wing with the cell long ; vein 2 from long 

 before angle ; 3 and 5 from angle, 4 absent ; 6, 7 from upper angle ; 8 rarely 

 present as a short spur not reaching costa. 



1472. Thalesa citrina. 



Phalcena citrina, Sepp, Ins. Surinam, pi. 53 (1848) ; Kirby, Cat. Het. 



p. 208. 

 Charidea seruba, Herr.-Schaff. Aussereur. Schmett. f. 280 (1855) ; Druce, 



Biol. Centr.-Am., Het. i. p. 93 (part.) ; Kirby, Cat. Het. p. 208. 



S . Yellow ; head and thorax slightl)'^ marked with brown ; legs 

 with fuscous streaks ; abdomen whitish below. Fore wing with 



numerous irregularly-waved 

 fine brown lines ; the ante- 

 medial line defined on outer 

 side by a brownish patch 

 from costa to median nervure ; 

 an oblique, almost straight, 

 :dJ), medial line expanding at 



costa and with a silvery spot 



F{^. ^91.- Thalesa citrina, S- 1- heyond it at lower angle of 



cell ; a subterminal black 

 point above vein 5 ; the lobe of inner margin dark brown. Hind 

 wing yellowish white. 



$ with fine brown line on inner margin. 



If ah. Panama {Champion), 2 $ , Godman-Salvin Coll. ; Amazons, 

 Kio Purus (TraU), 1 d , Para (Bates), 1 $ . E^cp., c? 30, $ 4a 

 millim. 



Larva. Reddish brown ; head crimson with darker sutures ; the 

 first two somites with long white forwardly directed hair arising 

 from pale tubercles ; the other somites with dorsal and lateral 

 brushes of pinkish and brown hair ; some lateral yellow marks ; 

 the terminal somite with some long white hair directed backwards, 

 and a pair of yellow brushes. Cocoon and pupa brown. Food-plant, 

 Inga vera. 



Genus HALISIDOTA. 



Type. 



Halisidota, Hiibn. Verz. p. 170 (1827) tessellaris. 



Lophocampa, Harr. Ins. Mass. p. 259 (1841) carycB. ■ 



Euhalisidota, Grote, Proc. Ent. Soc. Philad. v. p. 243 (1865)... atomosa. 



Munona, Schaus, P. Z. S. 1894, p. 233 iridescens. 



Schausia, Dyar, Can. Ent. xxix. p. 212 (1897) (nee Karsch, 



Lep. 1895) argentata. 



Euschausia, Dyar, Can. Ent. xxx. p-. 81 (1898) argentata. 



Proboscis well developed ; palpi upturned and not reaching vertex of head, 

 VOL. III. l 



