608 EXOTIC MICROLEPIDOPTERA. 



French Guiana, St. Jean, K, Maroni ; two specimens. Very 

 similar to leucodeJta, but in that species the white apical patch and 

 dorsal blotch are larger, the thorax almost wholly white, and veins 

 7 and 8 stalked. 



Baeonoma orthozona, n. sp. 



5 • 13-14 ram. Head white, back of crown fuscous. Palpi 

 fuscous, terminal joint white. Thorax white, anterior half rather 

 daik fuscous. Abdomen dark gre3\ Forewings elongate, modez"ate, 

 sliglitly dilated posteriorly, costa gently arched, apex rounded- 

 obtuse, termen slightly rounded, rather oblique ; dark fuscous ; a 

 small white spot on base of dorsum ; a moderately broad straight 

 white transverse median fascia ; a moderate subtriangular white 

 spot on costa at | : cilia dark fuscous. Hind wings rather dark 

 grey; cilia light grey, with darker subbasal shade. 



J. 11-12 mm. Antennal ciliations 1. Forewings rather dark 

 fuscous ; median fascia broad ; costal spot replaced by a broad 

 white terminal fascia, only narrowly separated from preceding ; 

 cilia white. Other characters as in 5 • 



French Guiana, R. Maroni; seven specimens (4 c? , 3 $ ). I 

 believe these, though at first sight very different-looking, to be 

 sexes of the same species, but in case of error I constitute the $ s 

 type. 



Baeonoma mastodes, n. sp. 



cJ 2 • 15-19 mm. Head white. Palpi white, second joint 

 fuscous except apex. Antennal ciliations of c? 2|. Thorax white, 

 anterior tliird or half usually fuscous or dark fuscous (in five 

 specimens). Abdomen grey. Forewings elongate, moderate, some- 

 what dilated posteriorly, costa gently arched, apex rounded-obtuse, 

 termen somewhat rounded, rather oblique ; white ; a rather thick 

 suffused dark fuscous streak along costa from Ijase to beyond 

 middle ; a rounded-triangular dark fuscous blotch on middle of 

 dorsum, reaching half across wing ; a slight spot of fuscous irro- 

 ration on end of cell ; a variable rounded blotch of dark fuscous 

 irroration or suffusion extending over termen : cilia fuscous, some- 

 times mixed with whitish, becoming whitish on costa and tornus. 

 Hindwings grey; cilia whitish-grey, with grey subbasal shade, 



French Guiana, R. Maroni; seven specimens. The variation in 

 colour of thorax is curious ; it is not sexual, but the two specimens 

 with wholly white thorax are both 5 . 



Baeonoma helotypa, n. sp. 



J 2 . 14-18 mm. Head and thorax white. Palpi white, more 

 or less suffused with dark fuscous, ' sometimes wholly. Antennal 

 ciliations of 6 2|. Abdomen dark grey. Forewings elongate, 

 moderate, posteriorly^ somewhat dilated, costa gently arched, apex 

 rounded-obtuse, termen obliquely rounded; white; some undefined 

 fuscous suffusion towards dorsum beyond middle, only in one c? 



