34 
Male Genitalia . Clasper of even width throughout, corona present; 
saccuius weak; harpe much as in Agrotis, but placed rather more apically; 
no editum. Clavus moderate. Juxta pointed at base. Uncus thin, 
pointed. Vesica armed apically with small spine. 
Includes only the single North American species, longidens Sm. The 
nature of the frontal process is reminiscent of that of Nocloa and quite 
unique among our North American species. 
Agrotis Ochs. 
1816, Schmett. Europ. IV, 66 (type, scgetum Sehiff.). 
Scotia Hbn., 1822, Verz. bek. Schmett. 226 (type, cinerea Sehiff,). 
Agronoma Hbn., 1822, Verz. bek. Schmett. 227 (type, vestigialis Rott.). 
(i eoryx Hbn., 1822, Verz. bek. Schmett. 227 (type, segetum Sehiff.). 
Porosagrotis Sm. Bull. 38, U. S. N. M. 11 (type, vetusta Wlk.). 
Eyes naked. Palpi upturned, with the third joint conical, more or less 
porrect; second joint normally fringed with long hairs below (occasionally 
heavily but smoothly scaled); third joint smooth-scaled, without tufts. 
Front normally roughened or w T ith slight prominence (occasionally smooth). 
Male antennae bipectinate in the basal half at least (occasionally fascicu- 
late). Tibiae all spined, fore tibia subequal in length to first tarsal joint, 
smooth scaled, with a complete row of well-developed spines on each side, 
the terminal spine of each row being strongest. Mid tarsi with at least a 
partly developed fourth row of spines situated on outer side laterally. 
Vestiture of thorax heavily overlaid with forked hairs; thoracic tufting 
scarcely evident, at times a slight divided posterior tuft; abdomen strongly 
hairy at base. 
Figure 12. Male genitalia of Agrotis vetusta Wlk, 
Male Genitalia. Corona present; harpe a somewhat recurved hook, 
attached to apex of saccuius; costa at base with a slightly raised, oval, 
chitinous plate, contiguous to the base of harpe (? editum of Pierce). 
Uncus long, narrow, strap-like. Clavus minute. Juxta pointed at base. 
Vesica armed apically with a lunate, scobinate plate. 
The writer includes under this generic heading the following North 
American species: vetusta Wlk., daedalus Sm., orthogonia Morr., patula 
Wlk., gladiaria Wlk., robustior Sm., venerabilis Wlk., vancouverensis Grt., 
gravis Grt., musa Sm. (not examined), atha Stkr., volubilis Harv., aenei- 
pennis Grt., obliqua Sm., malefida Gn., ypsilon Rott., and manifesta Morr. 
