37 
and with a bunch of apical bristles. Clavus lacking. Juxta emarginate 
at base. Aedoeagus with its apical edge serrate (in our North American 
species) and the vesica armed with a small apical, slightly serrate, chitinous 
plate. 
The only North American species definitely included is fennica Tausch. 
which, though superficially rather dissimilar to praecox L., is almost 
identical in genitalia (vide Pierce, op. eit., PI. XVI) and other structural 
details, including the narrow wings. 
Rather than create a new genus for larga Sm. without a better knowl- 
edge of the Mexican fauna it is provisionally placed here, on account of 
the strong similarity of genitalia. It is to be noted, however, that the 
vestiture is hairy and that the fourth row of tarsal spines is lacking. In 
general appearance larga and fennica are very dissimilar, the former, in 
this respect being closer to lobato Barnes than to anything else. 
Protogygia gen. nov. 
Type, Agrotis lagena Grt. 
Eyes naked. Palpi upturned, the third joint conical and slightly 
porrected; second joint fringed below with long hairs and scales; third 
joint rather smooth-scaled. Front roundedly protuberant, at times 
slightly roughened. Male antenna; ciliate. All tibia; spined, fore tibia 
either subequal to or shorter than first tarsal joint, smooth-scaled, with 
complete lateral rows of spines, terminating in a heavier spine. Tarsi 
lacking the fourth row of spines found in Agrotis. Vestiture of thorax 
rather smooth, scaly, with at times a rather distinct metathoracic scale- 
Figure 15. Male genitalia of Protogygia lagena Grt. 
Male Genitalia. Clasper long, narrow, at times with a spine-like 
projection on ventral margin near base; corona present; harpe attached 
to apex of sacculus and much as in Agrotis; editum absent. Uncus narrow, 
curved, with pointed apex. Clavus well developed, rather broad, leaf- 
like. Juxta rounded at base. Aedoeagus strengthened apically by a 
narrow, curved, chitinous band, vesica armed with a short cornutus with- 
out base. 
