36 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 90 



none. The entrance of the penis is dorsal, near the proximal end. 

 Vinculum bandlike or moderately produced. Gnathos present.^ Socii 

 and uncus present or absent. First and eighth segments simple or 

 with hair pencils. 



Female genitalia : Ostium opening in median part of genital plate, 

 the latter simple or modified {Fabiola, Inga) ; signum present or 

 absent; abdomen weakly or strongly sclerotized; sometimes spinose. 



The foregoing characters will serve to distinguish this family from 

 all other Lepidoptera except a few Blastobasidae and Ethmiidae. The 

 Blastobasidae may be separated from the Oecophoridae by the widely 

 separate veins 11 and 10 of the fore wing, the proximity of veins 2 

 to 10, and the thickening of the membrane below the costa (the "stigma" 

 of Zeller). Certain of the oecophorid genera have some of the char- 

 acters of the Blastobasidae while lacking others. Endrosis possesses 

 a spinose abdomen, a character frequently encountered in the Blasto- 

 basidae,** but lacks the characters listed in the foregoing paragi-aph 

 as being tyjDical of that family. The larva of Endrosis further sug- 

 gests Blastobasidae. The Ethmiidae may be distinguished from the 

 Oecophoridae (except Oecophora and Mathildana) by the proximity 

 of vein 6 to 6 of the hind wing; and the characteristic male genitalia, 

 which exhibit a primitive segmented type of harpe. 



I have removed the genera Oecophora and BorJchausenia from our 

 American lists, as the only species formerly included are referable 

 to other genera. 



For haydenella and pseudospretello I have resurrected the names 

 Chamhersia Riley and Hofmminophila Spuler, respectively. For 

 ascriptella Busck I have erected the genus Garolana. I propose the 

 genus Mathildana for newmaneUa and have restricted Oecophora 

 to hractella and its congeners. I retain all these in the family 

 Oecophoridae. 



Larva.'' — ^With primary setae only (except in Apachea., which has 

 a few secondary hairs in group VII on most of the abdominal segments 

 and two or three on the pro thoracic shield) ; three setae on prespiracular 

 shield of prothorax ; setae IV and V approximately and directly below 

 or (frequently) ventrocephalad of the spiracle on proleg-bearing seg- 

 ments; on eighth abdominal segment seta III usually dorsocephalad 

 of the spiracle, rarely directly above, never dorsocaudad or wdth a 



*The genera of the family fall into two groups on characters of the gnathos. Agonop- 

 terix, Bibarramila, Apachea, Depressaria, Seminscopis, Martyrhilda, Machimia, Himmacia, 

 and Psilocorsis fall into a group with a spiny gnathos. The remaining genera are without 

 spines on the gnathos. This suggests a division that may be of subfamily significance. 



• The spinose abdomen is found in at least seven other oecophorid genera. They are 

 Martyringa, BorJihausenia, nofmannophila, Carolana, Pleiirota, Inga, and Semioscopis. 



'' The setal characters of group VII should be used with caution as occasional abnormal 

 specimens occur in nearly all species. A hair may be missing from the group on either the 

 first or eighth abdominal segment, but only on one side of the insect. The opposite side 

 is nearly always normal. 



