44 
Hemieuxoa gen. nov. 
Type, Agrotis rudens Harv. 
Eyes naked. Palpi upturned, the third joint somewhat porrect; 
second joint fringed with hair beneath, which forms apically a triangularly 
pointed tuft; third joint smooth-scaled. Front smooth. Male antennae 
ciliate. Tibiae all spined; fore tibia longer than the first tarsal joint, 
smooth-scaled, with well-developed fringe of hair on the entire outer side, 
concealing partly a few apical spines; inner side with complete row of 
spines. Mid tarsi without fourth row of spines. Vestiture of thorax scaly 
with fairly well-developed pro- and metathoracie tufts. 
Figure 22. Male genitalia of Hemieuxoa rudens Harv. 
Male Genitalia . Strikingly aberrant. Clasper with deep rounded 
excavation in middle of ventral margin ; costal margin drawn out apically ; 
corona well developed; sacculus strong, the blunt apex forming the lower 
margin of the excavation; harpe attached to sacculus by a stout raised 
rod, bent downwards, curved and partly filling the excavation; from the 
dorsal side, at the bend, a fine, straight, chitinous finger projects slightly 
over the costa of clasper. Uncus with bulbous apex, furnished with several 
short spines. Clavus absent. Juxta with a short median spine. Tegumen 
strongly upcurved at the junction with the clasper, forming a pad from 
which the peniculus arises. Vesica armed with two thin cornuti. 
Rudens Harv. and pellucidalis Grt. are the only included species; the 
genitalia of the latter show no differences from those of rudens and it is 
quite probable that one is merely a form of the other. The general appear- 
ance is rather Euxoa- like, but there are numerous characters to separate 
the genus from Euxoa . It is placed along with Anicla and Euagrotis from 
which, apart from genitalia, it differs on palpal and thoracic tuftings. 
