244 Mr. Edward Meyrick's Description of 



Hapalonoma, n. g. 



Head smooth; ocelli present; tongue developed. Antennae 

 almost 1, in (J simple, basal joint elongate, without pecten. Labial 

 palpi very long, recurved, second joint expanded with rough hairs 

 above towards apex, beneath with fringe of long rough projecting 

 hairs, terminal joint longer than second, moderate, acute. Maxillary 

 palpi very short, filiform, appressed to tongue. Posterior tibiae 

 clothed with hairs above. Fore-wings with 16 furcate, 2 from 

 towards angle, 6 to apex, 7 absent, 1 1 from beyond middle. Hind- 

 wings 1, elongate-trapezoidal, apex rounded, termen hardly sinuate, 

 ciUa over 1 ; 3 and 4 connate, 5 rather approximated, 6 and 7 closely 

 approximated towards base. 



Hapalonoma argyracta, n. sp. 



cj $. 9-10 mm. Head and thorax whitish. Palpi white, towards 

 base grey. Abdomen dark grey. Fore-wings elongate, narrow, 

 costa gently arched, apex rounded-obtuse, termen rounded, some- 

 what oblique ; white or ochreous-whitish, with some scattered dark 

 fuscous scales ; a blackish streak along basal third of costa ; elongate 

 blackish costal marks beyond middle and at f , latter edged beneath 

 with ferruginous; a dark fuscous dot above middle of disc, some- 

 times with some dark suffusion round it ; some variable dark fuscous 

 suffusion or irroration towards dorsum, in one specimen forming 

 distinct spots at J and middle; a silvery-metallic subdentate sub- 

 marginal line round posterior part of costa and termen, preceded by 

 an angulated whitish line and then by a band of light brownish 

 suffusion, with an interrupted black dash on angle of line, costa 

 and apex beyond this ferruginous : ciUa grey, towards tomus 

 whitish, round costa and apex with a sharp blackish subbasal line, 

 base within this light ferruginous. Hind-wings dark grey; cilia 

 grey, round apex with base whitish. 



British Guiana, Bartica, in December and January 

 (Parish) ; four specimens. 



Ethirostoma, n. g. 



Head smooth; ocelli present; tongue developed. Antennae |, 

 in (J simple, basal joint elongate, without pecten. Labial palpi 

 very long, recurved, second joint clothed above with dense scales 

 expanded towards apex, and beneath tufted with long rough pro- 

 jecting scales, terminal joint as long as second, moderate, acute. 

 Maxillary palpi very short, filiform, appressed to tongue. Posterior 

 tibiae clothed with hairs above. Fore-wings with 16 furcate, 2 from 



