;54i) 



edge, and bctwccti i( and tlic outer cAizr arc two fainj, dill'usc. irni,nilar lines. 

 The outer lour of tliese lines arc' continued on the hind winir, the inner and 



shortest one hcinj^r straiijht and distinct, the others nior • less waved: discal 



dot minute, lilack, much larircr, and more distinct on hind wing. Tin- outer 

 edge of fore wing is narrowly edged with hlack lutween the venules, and 

 there are small hlack dots on th(> iiin^ri. oiipnsite the ends of the veiudcs • 

 fringe; white; costa testaceous above and on tin; undei- side. IJeneath, the 

 discal dots more distinct; l)eyond the di.scal dots on fore win>rs are two black 

 lines, the outer wavy, and on the hind wings one line only is present, beiii"- 

 wavy and situated nearer the outer edge than its fellow on the ujjper side; 

 wings paler than above; tiie innermost line on the l()re wings is often obsolete. 



Length of body, 0.;^S-0.4S ; fore wing, 0.54-().(i4 ; expanse of wings, 

 1.10 inches. 



California (Edwards ; Behrens). 



This species is apparently common in the Pacific States, representing 

 and being closely allied to our eastern A. enucleata Guen.; it is also frequently 

 met with in Colorado. It was discovered by Lieutenant Carpenter, near 

 Denver, and near Kenosha House on the South Park road, four miles from 

 the Park ; elevation, 9,000 feet It was found in Clear Creek Canon l)y Mr. 

 XJhler (Hayden's Survey) in August; also at Blackhawk, July 2, Golden, 

 July 3, and Manitou, July 15 (Packard, Hayden's Survey). This species is 

 closely related to A. strigilaria from Central and Southern Europe, Russia, 

 and xVmur. 



AciDALiA ORDiNATA Walker. Plate 10, fig. Ciii. 



Acidalia ordinata Walk., Lep. Het. I3r. Mus., xxii, 72'i, 18G1. 

 Acidalia candidaria Pack., Fifth Rep. Peab. Acad. Sc, 72, lS7;i. 



Unusually glistening white, free from dark speckles. Body white. Head 

 black in front; palpi rather short, tip obtusely pointed, black a])ove and at 

 tips, beneath whitish ; antennte white, densely ciliated, Wings pure glisten- 

 ing-white, with three ochraceous lines, oblique, very slightly sinuate; inner one 

 smallest, not reaching the costa ; the middle one the widest ; submarginal 

 one more sinuate than the others, not reaching the apex. A narrow, marginal, 

 ochraceous line at base of the white unspotted friuire. Two lines of equal 

 width on hind wings, the inner one straight, l)enl a little jusl befi)re the costa; 

 the outer bent in the middle and a little inward. Beneath, entirely white; 

 costa ol fore wings tinged with pale ochraceous; lines very faintly reproduced 



