20 Mr. E. Meyiick's Descriptions of 



ochreous, patagia more or less suliused with wliitish-ochreous. 

 Abdomen fuscous. Forewings elongate, posteriorly slightly dilated, 

 costa gently arehed, in J without fold, apex obtuse, tennen slightly 

 sinuate, little oblique; brown, more or less .strigulated with dark 

 fuscous; dorsal area more or less suffused with dark fuscous, with 

 some indistinct whitish transverse strigulation towards base, and a 

 postmedian subquadrate blotch formed of four subcon fluent whitish 

 strigae not reaching half across wing; costa dark fuscous obscurely 

 strigulated with whitish suffusion, posteriorly with more distinct 

 paired white strigulae, whence arise violet-leaden oblique strigae, 

 two beyond middle riuining respectiveh' to anterior margin of ocellus 

 and termen above middle; ocellus margined laterally by thick 

 leaden-metallic streaks reaching more than half across wing and 

 closed above by a curved black streak, internally blackish closely 

 speckled with white : cilia on upper part of termen blackish speckled 

 with whitish, on lower part ochreous-whitish. Hi:idwings with 3 

 and 4 stalked ; rather dark grey ; cilia grey. 



British Guiana, Bartica and Mallali, from December 

 to March {Parish); Dutch Guiana, Paramaribo; Cuba, 

 Holguin; twenty-two specimens. 



Eucosma operta, n. sp. 



(^.11 mm. Head and thorax grey. Palpi whitish, second joint 

 with fuscous median spot and apical band. Abdomen fuscous. 

 Forewings elongate, posteriorly rather dilated, costa gently arched, 

 with moderate fold from base to beyond middle, apex obtuse, termen 

 hardly sinuate, nearly vertical; brownish-grey; basal = obscurely 

 strigulated with dark fuscous ; a dark brown triangular blotch extend- 

 ing over posterior half of costa, its apex reachmg to lower angle of 

 cell, marked with an iiTegular blackish longitudinal streak across its 

 middle, a blackish longitudinal mark on its margin above ocellus, 

 and on costa with four pairs of indistinct whitish strigulae whence 

 rise faint oblique violet-leaden strigae; ocellus margined laterally 

 by thick silvery-metallic streaks, anterior triangularly dilated 

 upwards to adjoin costal blotch, internally crossed by five fine 

 blackish dashes separated with whitish : cilia rather dark fuscous 

 finely sprinkled with whitish, towards tornus greyish. Hindwings 

 with 3 and 4 stalked; rather dark fuscous, near base thmly .scaled; 

 cilia grey, with darker subbasal shade. 



British Guiana, Bartica, in December {Parish); one 

 specimen. 



