510 FXOTIC MICBOLEPirOPTERA. 



on insect-refuse in the web ; this interestino- hahit is analogous to 

 that of Brachmia ccerojiihaga also discovered by Mr. Fletcher. 



Stenoma ptycliocentra, n. sp. 



5 . 13 mm. Head wliite, hack of crown grey. Palpi white, 

 second joint grey except apex, terminal joint with base and a sub- 

 aj)ical ring dark fuscous. Thorax and abdomen grey. Forewings 

 elongate, costa gently arched, apex rounded, termen rounded, 

 slightly oblique ; 2 and 3 stalked: light glossy grey ; costal edge 

 ochreous-whitish ; a black basal dot in middle ; plical stigma 

 conspicuous, black; a rather thick blackish line from | of costa to 

 dorsum near tornus, hardly curved in middle ; area beyond this 

 somewhat darker grey ; a marginal row of indistinct blackish dots 

 round ajiex and termen : cilia ochreous-whitish, on tornus pale 

 grey. Hindwings with 3 and 4 stalked ; dark grey ; cilia whitish- 

 grey, with grey subbasal shade. 



Fkench Guiana, li. Maroni ; one specimen. 



Stenoma niphacma, n. sp. 



S . 15 mm. Head white, collar dark fuscous. Palpi white, 

 secoud joint with dark fuscous streak on basal |, terminal joint 

 dark fuscous except a submedian band and extreme tip. Antennal 

 ciliations 2^. Thorax dark fuscous, posterior margin white. 

 Abdomen grey. Forewings elongate, rather narrow, costa ante- 

 riorly gently arched, then nearly straight, apex rounded-obtuse, 

 termen somewhat rounded, little oblique ; 2 and 3 coincident ; dark 

 slaty-fuscous ; costal edge white from | onwards ; a white slightly 

 irregular line from before middle of costa to | of dorsum ; a narrow 

 white apical patch, attenuated to below middle of termen, marked 

 with three blackish dots on apical edge : cilia white, on tornus 

 dark grey. Hindwings with 3 and 4 stalked ; rather dark grey; 

 cilia pale grey, with darker subbasal shade, at apex suffused 

 with whitish. 



Feench Guiana, St. Jean, E. Maroni, in July ; one specimen. 



Stenoma periaula, n. sp. 

 5. 16 mm. Head white, crown grey except posteiior margin 

 of collar. Palpi white, second joint with dark fuscous streak 

 except at apex and ochreous-tinged anteriorly, terminal joint with 

 base and subapical ring dark fuscous. Thorax dark grey, shoulders 

 white. Abdomen rather dark grey. Forewings elongate, rather 

 narrow, costa anteriorly gently, ])osteriorly slightly arched, apex 

 rounded, termen rounded, somewhat oblique ; 2 separate ; dark 

 violet-grey ; costal edge wliite throughout, more strongly towards 

 base ; a hardly curved white line from middle of costa to before | 

 of dorsum ; a white line with waved anterior edge running round 

 apex and termen, marked with a series of small black dots on 

 marginal edge : cilia white, basal half narrowly barred with grey, 

 on tornus wholly grey. Hindwings with 3 and 4 stalked ; rather 



