[June, 



the different genera into which the numerous species of this Sub- 

 Family may be grouped. More extended experience has caused me to 

 somewhat modify my views, and to introduce some new genera ; there- 

 fore, before enumerating the species contained in each genus, I shall 

 briefly give the characters by which such genus may be distinguished 

 from the others ; and at the end of the list of species in each genus, 

 I shall make a few remarks on such species as possess points of interest 

 or obscurity, and lastly describe any new species. 



1. POLIETES, Eond. 



JJIacrosoma, R. Desv. 

 Aricia, pt., Auctt. 

 Gen. oh. — Eyes hairy, contiguous in males; arista plumose; 

 margins of facial groove ciliated from the vibrissa? to the base of the 

 third joint of the antennae ; alulets large, the lower scale twice as long 

 as the upper ; abdomen short and rounded ; bristles on the back of 

 thorax and iibdomen small and soft ; anal vein terminating a short 

 distance from the margin of the wing. 



1. LAEDAEIA, Fab. 2. ALBO-LIKEATA, Fall. 



floralis ?, Desv. 



2. HYETODESIA. 



Yetodesia, E-ond. 

 Aricia, pt., Auctt. 



Gen. cli. — Eyes hair}*, contiguous or approximate in the males ; 

 arista plumose or sub-plumose ; facial groove bare, or nearly so ; 

 alulets generally large, but variable in size, the lower scale however 

 always longer than the upper ; abdomen oval or oblong ; anal vein 

 prolonged, but not reaching the margin of the wing. 



Sect. 1 — Legs entire!// Hack. 



7. OBSCUEATA, Meig. 



1. incana, Wdm. 



2. ltjcorum, Fall. 



3. MAEMOEATA, Zett. 



4. SEETA, Meig. 



5. DISPAR, Fall. 



nivalis, Zett. 



6. mi: i a. sp. n. 



Sect. 2 — Legs parti ij pale (fulvous or rufous) 



8. YAEIABILIS, Fall. 



9. loxgipes, Zett. 

 atra, Fall. 



10. TJMBEATICA, Meig. 



11. SEMICINEREA, Mei< 



12. LJETA, Fall. 



13. peedita, Meig. 



trimacula ?, Bouche. 



14. eeeaxs, Meig. 



15. signata, Meig. 



1G. LASIOPHTHALMA, Macq. 



17. vaga^s, Fall. 



IS. ERRATICA, Fall. 



19. basalis, Zett. 



20. eueipalpis, Macq. 



21. ABDOMLNALIS, Zett. 



22. simplex, Wdm. 



posticata, Meig. & Zett. 



23. SCITELLAEIS, Fall. 



populi, Meig. 

 variegata, Meig. 

 21. pallida, Fab. 



