412 rxoric MiCEOi.EPiDOPrERA. 



arched, apex rounded, termen rounded, little oblicjue ; violet-grey ; 

 a large deep olive-green patch extending on dorsum from base to | 

 and reaching | across wing, its upper edge parallel to costa, 

 posterior edge irregular ; costal area above this suffused with 

 whitish from base to bej'ond ^; a slender ferruginous costal streak 

 from 5, gradually dilated, towards apex suffused with whitish and 

 marked with two blackish marks, passing into a fine whitisli 

 terminal line, extreme terminal edge black: cilia ochreous-Avhitish, 

 on tornus grey, towards costa suffused with ferruginous (imperfect), 

 llindwings blackish ; cilia grey, with dark grey subbasal shade. 

 liiuxisH Guiana, Eartica, in January (^Parish) ; one specimen. 



Stenoma neastra, n. sp. 



c? . 11mm. Head, thorax, and abdomen dark fuscous, face 

 whitish. Palpi grey, internally white. Aiitennal ciliations l^. 

 l"'orewings elongate, posteriorly rather dilated, costa gently arched, 

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

 ])urple-blackish ; a white line from middle of costa to |- of dorsum, 

 somewhat angulated in middle : cilia white, on costa and tornus 

 dark grey, on termen with basal third indistinctly barred with 

 dark fuscous. Hind wings with 3 and 4 coincident, 5 conuu^'e ; 

 dark fuscous becoming blackish posteriorly ; a moderate ii;?egulur 

 white spot in disc beyond middle; cilia grey, witlo. dark fuscous 

 basal line, and white patches at apex and tornus. 



liRiTisH Guiana, Mallali, in March (Parish)"^ one specimen. 

 Allied to chionoyramymi. This would be referalj'ie to Orphnolechki 

 Meyr., but I am not able to maintain that getius, sinceThsislence 

 on the structural distinction separates closely allied species, and 

 groups together others which are not allied. ( In the aggregate of 

 species grouped under Stenoma the stalking ^f .Veins 2 and 3, or '2-4, 

 or the anastomosing or confluence of 2/and 1 c (a frequent character 

 which has been generally overlooked) in the forewings, or the 

 stalking of vcin.s 6 and 7, or 8 and 9, or 10 and 11 of forewiugs, 

 or the stalking or coincidence of veins 3 and 4 of hindwings, are 

 all specific characters only, and not always constant even as such, 

 recurring in unrelated groups of the genus, and disguising natural 

 affinity instead of expressing it. This will be seen by inspection 

 of the following descriptions of species, which are grouped according 

 to approximate natural affinity, and these points of structure noted. 

 Hence I consider Walsingham's genera AeJemoses, Cataratd, 

 AihJeta, Zetesima, Menestomorjiha, and Mothonica as all untenable, 

 and to be suppressed. 



Stenoma argotoma, n. sp. 



c? . 12-13 mm. Head white. Palpi white, second joint with 

 dark fuscous streak on basal |, terminal joint with base and a 

 subapical ring black. Anton nal ciliations 2^. Thorax dark ashy- 

 grey, shoulders white. Abdomen grey. Forewings elongate, 

 rather narrow, costa anteriorly gently, posteriorly slightly arched, 



