8 PROCEEDINGS OF THE NATIONAL MUSEUM Vol. 117 



from North America, but also occurs in Europe, and probably will be 

 found in Asia as well. The fact that the island species M. relegata 

 (Meyrick) is the only one recorded from the South American fauna is 

 a matter of collecting, or lack of it, and undoubtedly other species will 

 be found.* The gelechiid genera Apothetoeca Meyrick and Pseudarla, 

 new genus, are New World types while the genus Gnorimoschema 

 Busck is widely distributed throughout most of the world. 



Key to Genera 



1. Forewing divided 2 



Forewing not divided 3 



2. Forewing with veins 3, 4, and 5 separate Platyptilia 



Forewing with veins 3, 4, and 5 stalked Stenoptilia 



3. Hindwing with veins 7 and 8 stalked or united 4 



Hindwing with veins 7 and 8 separate 15 



4. Hindwing with veins 7 and 8 united Giorgia 



Hindwing otherwise 5 



5. Forewing with vein 7 absent Elasmopalpus 



Forewing with vein 7 present 6 



6. Forewing with vein 7 out of the stalk of 8 and 9 7 



Forewing with vein 7 free 9 



7. Forewing with veins 3 and 4 coincident Juania 



Forewing with veins 3 and 4 separate 8 



8. Forewing with veins 4 and 5 short stalked; labial palpus at least three times 



as long as head Crambus 



Forewing with veins 4 and 5 connate or closely approximate; labial palpus 

 not three times as long as head Fernandocrambus 



9. Hindwing with veins 4 and 5 stalked 10 



Hindwing with veins 4 and 5 otherwise 11 



10. Harpe with spinous process from ventral edge: signum absent . . Scoparia 

 Harpe without such spinous process; signum present Oeobia 



11. Hindwing with veins 4 and 5 closely approximate for about one-third their 



lengths from base 12 



Hindwing with veins 4 and 5 divergent from base 13 



12. Forewing with veins 3, 4, and 5 about equidistant at base . . . Nomophila 

 Forewing with vein 3 much farther from 4 than 4 is from 5 . . . Pyrausta 



13. Frons produced Loxostege 



Frons smooth, rounded 14 



14. Hindwing with veins 4 and 5 connate; labial palpus more than twice as long 



as head Mnesictena 



Hindwing with veins 4 and 5 closely approximate at base; labial palpus not 

 more than twice as long as head Pionea 



* In my volume IV on the Meyrick types of Microlepidoptera, I have transferred 

 to this genus five South American species, recorded from Argentina, Colombia, 

 Ecuador, and Peru. 



