XHALESA. — HALISIDOTA. 145 



Genus THALESA. 



Type. 



Thalcsa, Schaus, Journ. N. York Eat. fcioc. iv. p. 136 (1890) citrina. 



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

 anteniuc of male bi pectinate witli nmderate branches, of feuiale witii short 

 branches; tibiiuwith the spurs moderate; abdonien dorsally clothed with rougli 

 hair at base. Fore wing with vein .'} from ^veli before angle of cell : 4, ."> from 

 angle; ti from np])er 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. 



PhaUena citrina, Sepp, Ins. Surinam, pi. 53 (1848) ; Kirby, Cat. llet. 



p. 208. 

 Char idea scruha, Herr.-Schaff. Aussereur. Schmett. f. 280 (18r)5) ; Druce, 



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



d" . Yellow ; head and thorax slightly marked with brown ; legs 

 with fuscous streaks ; abdomen whitish below. Pore 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: 



if^i'^'^i /%^r-v v^ ^^ oblique, almost straight, 



fMm Kv>^ ^^ medial line expanding at 



coata and with a silvery spot 



¥\g. S^.-Thalesa citrina, S. \. beyond 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 tine brown lino on inner margin. 



Hah. Panama (C7i«?H^JiO<i), 2 $ , Godman-Salvin Coll, ; Amazons, 

 llio Purus {Trail), 1 d , Para {Bates), 1 $ . Exp., S 30, $ 40 

 millim. 



Larva, lleddish 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, 

 Inya vera. 



Genus HALISIDOTA. 



lype. 



//a//.sif/o<ff, Iliibn. Verz. ]). 170(1827) fc.-i.tel/aris. 



Lojjkocampa, llarr. Ins. Mass. p. 259 (1841) carijw. 



Euhaliddotu, Grote, Proc. Ent. Soc. I'hilad. v. p. 243 (1805)... atomosa. 



Muiiona, Suliaus, P. Z. S. 1894, p. 233 iridcsccns. 



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



Lep. 1895} in\(/r?if(t/a. 



Euschauaia, Dyar, Can. Ent. xxx. p. 81 (1898) arycntata. 



I'roboscis well developed ; palpi upturned and not reaching vertex of head, 

 VOL. III. ' L 



