26 
Male Genitalia. The free arm of the saeculus is very strong, broad, 
and somewhat spoon-shaped as compared with the normally pointed one 
of Euxoa; the harpe is reduced. The juxta shows a much heavier plate, 
which at times is armed centrally with a projecting spine. 
Figure 2. Male genitalia of Chorizagrotis auxiliaris Grt. 
The genus is not a very well-defined one but the writer leaves it for 
the present, including in it, however, merely auxiliaris Grt., with its 
forms introferens, sorror, and agrestis; inconcinna Harv., which is a good 
species on genitalic characters; thanatologia Dyar, with its forms sordida, 
boretha, and perfida; and possibly terrealis Grt., which is unknown to the 
writer except by a figure. 
Protexarnis gen. nov. 
Type, Agrotis balanitis Grt. 
Eyes naked. Palpi upturned, with third joint somewhat porrected; 
second joint fringed beneath with long hairs which form a slight apical 
triangular tuft; third joint with similar tuft beneath. Front bulging and 
slightly roughened, but without central tubercle. Male antennae finely 
ciliate. Tibiae all spined; fore tibia subequal in length to first tarsal joint, 
smooth-scaled, with a complete row of strong spines on each side. Mid 
tarsi with a fourth row of lateral spines outwardly. Thorax smoothly 
clothed with single and forked hairs without much evidence of tufts. 
Abdomen somewhat depressed. 
