South American Micro- Lepidoptera. 217 



above and below middle of termen. Hind wings with tornus promi- 

 nent ; dark fuscous ; a fine short irregular whitish line from dorsum 

 before tornus parallel to termen; cilia whitish-fuscous, mth dark 

 fuscous basal line. 



Bolivia, Songo, 6500 feet; one specimen. Allied to 

 fabriciana, but much shorter-winged. 



Brenthia acmogramma, n. sp. 



cJ ?. 13-14 mm. Head dark fuscous, white before and behind 

 eyes. Palpi white, with subapical ring of second joint, and base 

 and an anterior streak of terminal joint blackish, in c^" with blackish 

 scale-tuft from basal joint beneath. Antennal ciliations of c? 1- 

 Thorax dark fuscous, with a whitish mark on inner side of shoulder. 

 Abdomen dark fuscous. Forewings elongate-triangular, costa gently- 

 arched, apex rounded, termen slightly rounded, hardly oblique; 

 rather dark fuscous ; base and a subbasal shade lighter, sometimes 

 whitish-tinged; a slightly curved transverse lighter shade at J, 

 more or less mixed with whitish suffusion; moderately broad 

 partially confluent transverse fasciae of whitish irroration in middle 

 and at f , between which in disc is a narrow-transverse spot of 

 ground colour outlined with white, preceded by a dark fuscous 

 spot and followed by two small ones, second fascia forming a small 

 whitish spot on costa beyond | ; patches of pale violet-blue-metallic 

 irroration on costa at ^ and J, and beneath costa at J; a black 

 marginal band round apex and termen, anterior edge irregular, 

 deeply indented near upper end and sometimes in middle also, 

 including a pale violet-blue-metallic praemarginal continuous line 

 with eight or nine fine acute projections inwards : cilia fuscous with 

 dark fuscous subbasal line, above tornus with a small whitish spot 

 on outer half. Hindwings dark fuscous; an oblique-oval lighter 

 fuscous spot in disc before middle; an inwardly oblique whitish 

 mark from costa at f ; a short indistinct whitish transverse line 

 from tornus ; a transverse white streak towards termen in middle ; 

 a transverse violet-blue-metallic streak across apex, and a dot near 

 termen below middle; cilia fuscous, with dark fuscous subbasal 

 line, and broad oblique white apical, median, and tornal patches. 



Bolivia, Songo, 6500 feet; four specimens. Finding 

 that my series of supposed South American examples of 

 pavonacella was assuming a heterogeneous aspect, I made 

 a more critical examination, and conclude that I have no 

 reason to believe that pavonacella occurs in South America 

 at all, being represented there by a group of closely alhed 

 similar species, mistaken for it by myself and others. 



