South American Micro-Lepidoptera. 231 



sprinkled with dark grey; four transverse fasciae each made up of 

 three appressed irregular white lines edged with dark fuscous scales, 

 expanded dorsally and connected on or near dorsal edge, fourth 

 just before apex, leaving a dark fuscous apical dot : cilia grey, 

 round apex with blackish subbasal line edged with whitish. Hind- 

 wings dark grey ; cilia grey, 



British Guiana, Bartica, in January (Parish); one 

 specimen. 



Acrocercops cirrhantha, n. sp. 



cJ. 9 mm. Head silvery-whitish, crown yellowish. Palpi with 

 appressed scales, white. Thorax ochreous-yellow. Basal joints 

 of middle and posterior tarsi with bristly hairs above, but middle 

 tibiae smooth. Forewings very narrow, parallel-sided, short- 

 pointed; deep ochreous-yellow; from base to | of wing indistinct 

 whitish striae crossmg dorsal f, with some blackish specks on 

 margins of these ; three elongate groups of blackish scales on posterior 

 half of costa, two posterior containing very fine white dashes on 

 costal edge ; a fine silvery-white black-edged line along termen : 

 cilia deep ochreous-yellow, towards tornus grey, at apex whitish 

 above a projecting blackish line, in middle of termen with a blackish 

 basal dot. Hindwings dark grey ; cilia grey. 



British Guiana, Bartica, in January (Parish) ; one 

 specimen, 



Acrocercops achnodes, n. sp. 



cj ?. 12 mm. Head on crowTi light yellowish centrally suffused 

 with dark grey, face white. Palpi white, second joint mixed with 

 black towards apex, with rough projecting tuft beneath, terminal 

 joint with blackish submedian and subapical rings. Thorax 

 whitish, mixed or strigulated with dark fuscous. Abdomen pale 

 greyish becoming ochreous-tinged towards base, with oblique 

 lateral dark fuscous marks, anal tuft in ^ white. Forewings 

 extremely narrow, parallel-sided, short-pointed; basal f white, 

 with irregular transverse strigulae or broken striae of blackish 

 irroration; apical f light ochreous tinged with grey, with a few 

 black scales, at f with an acutely angulated transverse white line 

 margined on upper half anteriorly by a thick black mark and 

 posteriorly -with black irroration ; an oblique slightly curved silvery 

 praeapical line from a white dot on costa ; a black apical dot : cilia 

 light grejrish, round apex whitish with two dark grey lines (imperfect). 

 Hindwings grey ; cilia light grey. 



Ecuador, Huigra, 4500 feet, in June (Parish) ; four 

 specimens. 



