NORTH AM ERICA X LKPIDORTERA. 43 



immaculate. Primaries sparsely black powdered, all the maculation imperfect. 

 Basal line vajjuely marked on the costa only. T. a. line ohsoletely peminate, the 

 inner line faintly indicated, the outer line made up of blackish scales, almost 

 upright save below the siibmedian vein, where it is outcurved. T. p. line gemi- 

 nate, the outer line marked in the costal region only, inner line dark brown, 

 outcurved over the cell and oblique below that point, where also the line becomes 

 outwardly denticulate on the veins. The s. t. line is indicated by a scries of ir- 

 regular, vague fuscous spots. A series of brown or blackish terminal lunules. 

 A small longitudinal black mark at base, scarcely reaching to t. a. line. Clavi- 

 form small, with a narrow black outline, paler tlian ground color. The cell 

 before and between the ordinary spots is more or less completely black-filled. 

 Orbicular oval, irregular, incompletely outlined, open to the costa, whitish filled. 

 Eeniform small, upright, scarcely kidney-shaped, whitish, with the centre of 

 ground color. Secondaries white, the veins fuscous powdered, a fuscous discal 

 lunule and a fuscous terminal line. Beneath white, fuscous powdered, both pairs 

 of wings with discal dots and more or less complete outer transverse lines. Ex- 

 pands 34-35 mm. ; 1.36-1.40 inches. 



Hah. — Colorado, Bruce; No. 51. 



Two male specimens are before me, differing somewhat in the 

 ground color. In the darker specimen the basal space, costal region 

 and s. t. space are sojnewhat paler. The body is robust, the vesti- 

 ture shaggy and somewhat loose, and the antennae are unusually 

 long, reaching three-fourths of the distance to the apex of the wing. 

 The tuft of bristles to each joint is unusually long, quite diflerent 

 from the other species referred to the genus. The species is a very 

 interesting one, strongly resembling some of the Carneades series. 

 It will be easily separable from the other described species by the 

 pale clay ground color. 



Peridroilia ilij^ra n. sp. (PI. i, lower centre figure)— Dark, blackish pow- 

 dery over a smoky brown base. Head, thorax and abdomen almost concolorous, 

 the latter somewhat lighter in shade. Primaries with all the markings present, 

 and all more or less broken or interrupted. Basal half line black, geminate, the 

 included space whitish powdered, terminating inferioi'ly in a reddish ocherous 

 blotch at the base of the wing. T. a. line geminate, defining lines blackish, in- 

 termediate sfiace with intermixed whitish and ocherous scales; neai-ly upright, 

 an outcurve above the costal and below the submediau vein. A blackish, diffuse 

 and vague median shade line. T. p. line geminate, inner defining line lunulate- 

 the outer hardly distinct from the s. t. space, the interval whitish and ocherous 

 powdered, this powdering extending into the median space a variable distaiice, 

 and either the ocherous or the white scales may predominate. S. t. line whitish 

 or ocherous, irregular, interrupted, preceded by more or less evident black lu- 

 nules. A series of black terminal lunules. Claviform small, black marked, with 

 a more or less obvious powdering of wliite and ocherous scales. Orbicular ir- 

 regular, oblique, narrowly ringed with black, within which is a white annulus, 

 the ce!itre concolorous or whitish powdered. Reniform large, kidney-shaped, 

 narrowly black-ringed, within which a series of white or ochery scales indicates 



TRANS. AM. ENT. SOC. XXI. FEBRUARY. 1894. 



