EUCOSMIDiE. 519 



suffaserl coarse dark crimson-fuscous strigulic ; a scmioval dark 

 crinisoii-f'uscous blotch on middle of dorsum ; costal area oti 

 posterior half suffused purplish, costa with short oblique leadeu- 

 blue strigte from pairs of whitish strigulae, one from | ruuning to 

 a white dot near termeri beneath apex, apical margin suffused deep 

 ferruginous, a series of fine black dashes from beneath costa at 

 I into ocellus, which is margined posteriorly by a leaden-metallic 

 mark edged whitish on tcrmen, and beneath by a whitish line, 

 below which is a round leaden-blue wliitish-edged spot : cilia 

 leaden more or less broadly ochreous-whitish on tornal area, tinged 

 ferruginous on middle of terraen. Ilindwings 3 and 4 connate ; 

 dark fuscous ; cilia grey, darker towards base. 



HuAziL, Santarem, Obidos, Parintins, Manaos, August to Novem- 

 ber (^Farinh) ; (j ex. 



OMIOSTOLA, n. g. 



Palpi moderate, subasccnding, second joint thickened with rather 

 rough scales beneath, terminal joint very short, obtuse. Antennae 

 cJ minutely ciliated. Tliorax without crest, patagia in c? ending 

 in expansible tuft of long scales. Eore wings 7 and 8 sometimes 

 stalked. Hindsvings 3 and 4 connate, 5 approximated, 6 and 7 

 closely approximated towards base, upper margin of cell curved 

 upwards and connected with 8 in middle. 



Type ali)hitopa Meyr. ; genla Busck is also referable here. A 

 development of JEucosma. 



Omiostola alphitopa, n. sp. 



S . 15-18 mm. Head whitish, crown sometimes tinged brownish. 

 Palpi lilac, apex white. Thorax light lilac-brownish, patagial tufts 

 partly whitish. Porewings elongate-triangular, costa abruptly 

 arched about |, termen rounded, little oblique ; 7 and 8 short- 

 stalked ; dark brownish-purple ; an oblique triangular dark ferru- 

 ginous blotch from dorsum towards base reaching half across wing; 

 costal half from base and terminal area beyond a line from | of 

 costa to tornus thickly strewn ochreous-whitish dots and strigulai ; 

 costa with dark leaden oblique strignloe, on posterior half brownish- 

 ochreous and with some obli(pie deep ferrugiuous streaks between 

 these, last two blue-leaden streaks longer and united at tips, lying 

 in a triangular ochreous and deep ferruginous apical blotch ; a 

 short transverse leaden mark before termen in middle, preceded by 

 two black dots : cilia glossy dark purple-grey. Hindwings dark 

 giey ; cilia light grey, a darker subbasal line. 



JJKAZiL, (Jbidos, Manaos, September, November (ParisJi)] 2 ex. 



Omiostola macrotrachela, n. sp. 



(5 . 30-35 mm. Head, thorax dark purple-brownish, patagial 

 tufts whity-brownish. Palpi ferruginous-browniish. Porewings 

 elongate-triangular, costa gently arched, little oblique; 7 and 8 

 separate ; rather dark purplish-fuscous ; a ferruginous-blackish 



