94 INSECUTOR INSCITI^ MENSTRUUS 



domen yellowish fuscous above with white underside. Anal 

 tuft yellowish. Legs yellowish white. 



Alar expanse: 19-22 mm. 



Habitat : Cayuga, Guatemala ; Maroni, French Guiana ; Juan 

 Vinas, Costa Rica (W. Schaus) ; British Guiana (C. W. 

 Beebe) ; Porto Bello, Panama (August Busck). 



U. S. N. M., Type No. 22316. 



Very close to G. stella Busck, but smaller, with less mottled 

 f orewings and less yellowish hindwings. without the dark mar- 

 ginal line. Very similar in pattern to Stenoma diatribe Wal- 

 singham, though with less pronounced costal spots. 



Dorata nigritella, new species. 



Labial palpi dirty white sprinkled with brown and black 

 scales. Head and thorax dirty white. Forewings dirty white 

 sufifused with dark fuscous and black scales in longitudinal 

 streaks along the veins, which are imperfectly indicated 

 thereby ; dorsal edge dark fuscous ; cilia blackish brown. Hind- 

 wing very dark brownish fuscous, nearly black. Abdomen still 

 darker, nearly black, with extreme tip ochreous. Legs dark 

 fuscous. 



Alar expanse : 26-28 mm. 



Habitat: Venadio, Sinaloa, Mexico (gift of B. P. Clark). 



U. S. N. M., Type No. 22317. 



The small size and the very dark hindwings on abdomen 

 easily distinguish this species. The forewings have vein 2 

 obsolete, but otherwise the species conforms with the other 

 species of the genus. 



Acrolophus robertus, new species. 



Antenna pectinate ; light ochreous. Labial palpi very long 

 recurved, reaching to posterior tip of thorax, evenly clothed 

 with rather short yellowish brown scales with dark brown 

 bases. Thorax dark brown, each hair tipped with yellow. 

 Ground color of f orewing light yellowish brown, a well-defined 

 conspicuous downwardly curved band of dark brown from base 

 of costa down to the fold and up to apical third of costa ; on 

 the bottom of this curve is a pure white semicircular spot on 



