South American Micro-Lepidoptera. 27 



3 and 4 connate, 5 very closely approximated ; dark grey ; cilia 

 grey, with darker subbasal shade. 



British Guiana, Bartica, in January and February 

 {Parish) ; five specimens. Allied to alhimacula, Wals. 



Argyroploce nomaea, n. sp. 



(^ $. 9-10 mm. Head, palpi, thorax, and abdomen dark leaden- 

 grey. Forewings elongate -triangular, costa gently arched, apex 

 obtuse, termen rounded, little oblique ; dark leaden-grey ; markings 

 blackish-fuscous; small spots along costa, separated by groups of 

 two or three very fine indistinct whitish strigulae; some scattered 

 marks and strigulae on basal area; an irregular streak from | of 

 costa to j*; of dorsum, sharply angulated in disc ; central fascia 

 narrow, oblique, nearly straight or slightly curved, in one specimen 

 thicker on lower half ; ocellus containing three black dots, and closed 

 above by a rounded-triangular blotch : cilia grey, with dark fuscous 

 subbasal line. Hindwmgs with 3 and 4 connate; dark fuscous; 

 cilia wliitish-grey, with dark fuscous subbasal line. 



British Guiana, Bartica, from December to February 

 {Parish) ; six specimens. 



Argyroploce cycladica, n. sp. 



J'. 12 mm. Head, palpi, and thorax grey, patagia terminating 

 in expansible tufts of broad scales. Abdomen dark grey. Fore- 

 wings elongate, posteriorly dilated, costa gently arched, apex 

 obtuse, termen rounded, nearly vertical; grey, mostly suffused 

 with glossy blue-leaden between the markings ; markings blackish- 

 fuscous, finely edged with white laterally and above ; some small 

 marks and spots along costa; an irregular subcostal streak from 

 base to | ; a large rounded blotch extending on dorsum from near 

 base to middle, and reaching more than half across wing ; a smaller 

 rounded praetornal blotch, not reaching half across wing; an 

 irregular rather thick bisinuate streak from above middle of disc 

 to near termen above middle : cilia grey, on termen with blackish 

 basal line. Hindwings with 3 and 4 connate; dark fuscous; cilia 

 whitish-grey, with dark fuscous subbasal line ; dorsum with a short 

 much thickened lobe clothed with scales. 



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

 specimen , 



