274 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 50. 



dark line on discocellular; the sub terminal consisting of a few small 

 white spots. 



Expanse. — At apices 19 mm.; at middle of outer margin 24 mm. 



Habitat. — St. Jean, Maroni River. 



Type.— Cat. No. 19702, U.S.N.M. 



TRACHYSMATIS, new genus. 



J/a/c. — Antennae minutely serrate with short cilia. Palpi up- 

 curved, slender, smooth; the second jomt reaching above vertex; the 

 third almost as long as second. Body slender, the thorax clothed with 

 spatulate scales; legs smooth. Wings narrow. Forewings: Outer 

 margin slightly sinuous; vein 2 near lower angle of cell; 3 from lower 

 angle; 4 and 5 slightly above angle, apart; 6 below upper angle; 7, 

 8, 9 stalked from upper angle; 10 and 11 free. Hind win^gs inbent 

 opposite cell; veins 3 and 4 shortly stalked; 5 near lower angle; 

 6 and 7 from upper angle. 



Ty2)e of genus. — Tracliysmatis ignobilis Schaus. 



TRACHYSMATIS IGNOBILIS, new species. 



Male. — Head, thorax, and forewings olive broAvn. Abdomen and 

 hind wings fuscous broA^m. Fore wings: iVntemedial and post- 

 medial lines indicated by darker shading, almost black on ante- 

 medial; a black shade across discocellular; the postmedial is followed 

 by famt ochreous shading; sub terminal line wavy, pale tinged, in- 

 distinct. Wings below dark grey. 



Expanse. — 11 mm. 



Habitat. — Trinidad River, Panama. (Collected by August Busck.) 



Type.— Cat. No. 19703, U.S.N.M. 



TRACHYSMATIS MOGIA, new species. 



Male. — Head, collar, thorax, and forewings light greenish grey. 

 Palpi, abdomen, and hind wings brown grey, more darldy irrorated. 

 Forewings: A fuscous shade at base of costa; a famt antemedial 

 shade; a dark postmedial shade, broad, slightly outcurved at end of 

 cell, inclosing a large black spot on discocellular; a fuie dark sub- 

 terminal shade, expanding on costa. Wings below dull grey. 



Expanse. — 12 mm. 



Habitat. — Cayenne, French Guiana. 



Type.— Cat. No. 19704, U.S.N.M. 



COMPSENIA, new genus. 



Male. — Antennae pubescent, ciliate. Palpi obliquely ascending, 

 long, second joint hairy, third joint uptm"ned, linear, smoother. 

 Legs smootlily scaled. Forewings: Apex acute; termen incurved 

 below apex, produced at vein 4; vein 3 close to lower angle; 4 and 5 



