350 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.47. 



Type.— Female, No. 16436, U.S.N.M.; Taboga Island, February, 

 1912 (Biisck). 



This may prove to be the female of T. infantilis Schaus (Cossus 

 infantilis Schaus)^, though very dissunilar in appearance. 



ARBELA NECREROS, new species. 



Soft dark brown; a broader, darker blackish shade band, oblique 

 from costa before apex to inner margin before middle; reticulations 

 obsolete; a narrow gray line on angle of inner margin at base. Hind 

 wing sooty blackish, subtranslucent, the veins appearing darker. 

 Beneath, all blackish, reticulations only faintly shown. Expanse, 

 27 mm. 



T?/2^e.— Female, No. 16437, U.S.N.M.; Trmidad River, March, 1912 

 (Busck). 



Family HEPIALID^. 



HEPIALUS MOMUS Druce. 



1. La Chorrera, May, 1912 (Busck). 



DALACA ASSA Druce. 



1. Trinidad River, March, 1912 (Busck). 



» Ann. Mag. Nat. Hist., (8), vol. 7, 1911, p. 632. 



