JOHN B. SMITH. 257 



The antennae of male have the sides of the joints slightly 

 drawn out, and the bristle-tufting well marked. 



Euxoa brevistriga n. sp. 



Ashen gray with a tendency to reddish, more or less powdery. 

 Head black and white mottled, without distinct markings. Collar 

 with a series of alternate blackish and paler lines, the dark lines broad- 

 ening upward, the collar white tipped. Patagia dusky, with a darker 

 sub-marginal shade and paler edge. Disc mottled gray and whitish. 

 Primaries with a dusky shading over costal region, terminal area all 

 smoky brown. Median lines barely marked on costal region only, else 

 obsolete. Basal line traceable, geminate. S. t. line marked by the 

 sharp inner edge of the dusky terminal space ; decidedly toothed on 

 veins 3 and 4, and a little indenced on veins 6 and 7. A series of black 

 terminal lunules, followed by a pale yellowish line at base of fringes. 

 On the sub-costal vein at base there is a short blackish streak which 

 is edged by whitish. The veins are marked by blackish scales, and on 

 veins 3 and 4 there are also pale shades giving a rayed appearance, 

 characteristic of the 4-dentata series. Claviform faintly and incom- 

 pletely outlined by darker brown scales. Orbicular oval, oblique, 

 moderate in size, of the pale ground, narrowly dark edged. Reniform 

 narrow, almost crescent-shaped, of the pale ground color, outwardly 

 with a reddish shading. Secondaries white, veins a little yellowish, a 

 narrow terminal line smoky. Beneath white, blackish powdered along 

 the costal margin and at apical third of primaries, and along costal 

 margin only of secondaries ; all wings with a small blackish discal 

 lunule and a lunulate terminal line. 



Expanse, 1.35-1.50 inches = 34-37 mm. 



Hab. — Colorado, probably near Denver. 



I have two males, in good condition, collected years ago 

 by Mr. David Bruce. The specimens have been tentatively 

 associated with brevipennis, and agree with that species in 

 the robust thorax and comparatively short abdomen. They 

 differ in the almost complete obsolescence of the median 

 lines and the uniformly sharply defined dusky terminal space. 

 The antennae have the joints laterally produced or very 

 shortly pectinated, each process with a short stout bristle 

 which is set with shorter hair, A characteristic feature is the 

 short dark dash at base of subcostal, set in a pale shading. 



Euxoa angulireiia n. sp. 



Ground color dull smoky fuscous. Head with a narrow paler line, 

 below antennae, Collar with a distinct black median line and a white 

 tip. Patagia darker, tending to blackish, edged with gray. Disc of 



TRANS. AM. ENT. SOC..XXXVI. (33) NOVEMBER, 1910. 



