JOHN B. SMITH, SC D. 



133 



isb filled inferiorly, else concolorous. Beneath dull pale yellowish, a little 

 smoky outwardly, all wings with a blackish discal spot. 

 Expands 1.12 inches = 28 mm. 



iZft6.— GleDwood Springs, Colorado, October 16th to 23d. 



One good male, from Dr. Barnes. This is an ally of Jerruginoi- 

 des, than which it is smaller, much more obscurely marked, with 

 dusky secondaries and a dusky outer border to the primaries. The 

 antennae have the joints marked and fasciculate. 



Ortho.«iia acta n. sp. 



The ground color varies from very pale reddish-gray, with a yellow tinge to 

 almost rusty red-brown, the markings always a deeper shade of the ground color 

 so that while they are distinct they are never contrasting. Head and thorax con- 

 colorous. Basal half line distinct, single, even. T. a. line geminate, inner por- 

 tion faint, outer distinct, included space a little paler than the ground ; in course 

 oblique, with two well-marked inward angulations so that it looks like a widened 

 W. T. p. line geminate, outer portion obscure, included space a little paler, inner 

 line fairly defined, lunulate, as a whole with an even, moderate outcurve over 

 the cell and a very feebly marked incurve below. The median shade band is 

 very distinct, narrow, a little diflTuse, a little oblique from cosia between the ordi- 

 nary spots to the lower angle of the reniform, then a little inwardly oblique to 

 the inner margin nearly at its middle. S. t. line pale, preceded by a neat well- 

 defined rusty brown shading, a little irregular, as a whole parallel with the outer 

 margin. A series of small terminal lunules. Claviform moderate in size, con- 

 colorous, outline not well defined. Orbicular outlined in red-brown, concolorous, 

 large, nearly round. Reniform large, upright, only a little constricted, with nar- 

 row red-browu outline, concolorous, except for a leaden-gray inferior spot. Sec- 

 ondaries very pule yellowish, immaculate. Beneath: yellowish, with a reddish 

 tinge, powdery, secondaries paler, both wings with an extra-median dusky line 

 and a discal spot. 



Expands 1.28-1.38 inches = 32-34 mm. 



Hah. — Corvallis, Oregon, September 27th and November 3rd ; 

 Pullman, Washington, October 20th ; Corfield, Vancouver, Septem- 

 ber 9th ; Livingston, Vancouver, September 5th. 



Five S and one $ , all in fair or good condition. The wing form 

 is like that of verberata, a little more elongate and pointed than 

 bicolorago, and in the uniformly yellowish secondaries this species 

 resembles decipiens, with which, indeed, it has been confused. The 

 % antennae have the joints marked and fasciculate, the thoracic ves- 

 titure is hairy, forming no distinct tufts. From decipiens, which 

 is a large eastern species resembling a washed out ferrugmoides, 

 this species differs by the neatly marked ornamentation and smaller 

 size. 



TBANS. AM. ENT. SOC. XXXIII. MAY, 1907. 



