24 Journal New York Entomological Society, t^oi. xxii. 



in structure and plan of markings, and the subgenus Zale which has 

 no tufts on the middle femora. Calycanthata belongs to Zale. 



20. Our species placed by Hampson in Parallelia. 



21. The secondary sexual characters are not really satisfactory 

 for general use, and in this, the Agrotid group, their use would 

 separate very closely related species, so I have gone back to Grote's 

 point of view and combined a number of Smith's genera. It will be 

 noted that Feltia and Rhisagrotis have been divided; this is largely 

 because their frontal characters seem to have been misinterpreted in 

 the past. The frontal ridge, used by Hampson for Feltia is an 

 accident, always absent in some species, and constantly present in 

 none, so far as I know. Some species of Rhizagrotis lack the raised 

 ring and in the typical group it is entirely obliterated by the central 

 horn. The principal other changes are the transfer of geniculata 

 and scandcns to Feltia on frontal characters, and the change of fen- 

 Mica from Noctua to the ypsilon group on characters of wing form 

 and tarsal spinulation. Pachnobia must include rava. 



The following subordinate groupings may be made : 



Euxoa. 



Male antennae broadly pectinate. 



Fore tibiae with very heavy blunt spines venerabiHs, gladiaria. 



Fore tibiae lightly spined typical Agrotis (exotic). 



Male antennae heavily serrate and fasciculate. 



Fore tibiae with heavy sharp claws at tip, grading into normal spines above, 



male genitalia characteristic Euxoa s. str. 



Fore tibia with one or two heavy usually blunt claws on inner, and about 

 7 graded ones, on outer side. 

 Wings narrower, more rectangular. 



Hind wings translucent atinexa, malefida. 



Hind wings opaque vohibilis. 



Wings broader, more triangular. 



Spinules of fore tibia stubby veiusta. 



Spinules of fore tibia sharp mimallonis. 



Male antennae nearly simple (genitalia characteristic) Chorizagrotis. 



Feltia. 



Male antenna: with well-developed pectinations, vestiture rather fine (^Ony- 



chagrotis) rileyana. 



Male antennae subpectinatc and heavily fasciculate, vestiture almost scaly, 



geniculata. 



