126 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 93 



States and the adjacent Canadian region) where climatic conditions 

 are rather constant and Quercus garryana is the prevailing oak. Two 

 specimens from California, however, are indistinguishable from 

 eastern examples of typical fiscellaria; one is from Plumas County, 

 the other bears no additional label, and their food plant is unknown. 



The area of distribution for typical fiscellaria is much greater 

 than that of somniaria and the notable variation in a series of fiscel- 

 laria is probably effected by the more variable prevalent climatic con- 

 ditions and the presence of several kinds of food material on which 

 it feeds. Several species of Quercus, Abies, and Tsuga occur within 

 the area. 



Until more material is available, the name somniaria should be 

 applied to the northwestern variety of fiscellaria on Quercus. 



4. LAMBDINA FISCELLARIA LUGUBROSA (Hulst) 



Therina lugubrosa Hulst, Can. Ent., vol. 32, p. 106, 1900; U. S. Nat. Mus. Bull. 



52, p. 335, 1903. 

 Ellopia fiscellaria lugubrosa (Hulst) Barnes and McDunnough, Check list of 



the Lepidoptera of Boreal America, No. 4654, 1917.— McDunnough, Check list 



of the Lepidoptera of Canada and the United States of America (Part 1, 



Macrolepidoptera), No. 5146, 1938. 



Male. — Color and maculation somewhat variable, ranging from 

 a rather dull ocherous, heavily sprinkled with fuscous, to a dark, 

 suffused, smoky fuscous, with a few sparsely scattered ocherous irrora- 

 tions; occasionally with the area between the transverse lines of the 

 fore wing darker, more strongly suffused, and with a similar suffusion 

 of the hind wing extending from the transverse line basally. The 

 ocherous borders of the transverse lines are variable in intensity. 



Alar expanse, 32-38 mm. 



Genitalia like those of typical fiscellaria. 



Female. — Similar to male in color and markings. 



Alar expanse, 30-39 mm. 



Genitalia as in typical fiscellaria. 



Type. — In Rutgers College collection. 



Type locality. — Rossland, British Columbia. 



Food plants. — Abies, Tsuga. 



Distribution. — United States: Idaho (Sept.), Mains (Sept.), 

 Michigan (Sept.), Montana, Washington (Sept., Oct.), Wisconsin 

 (July, Sept.). Canada: British Columbia (Sept.), Nova Scotia 

 (Sept.). 



Fifty-four specimens examined. 



Remarks. — Examples of lugubrosa exhibit less uniformity than 

 somniaria but more than typical fiscellaria. Its range of distribution 

 and the variety of material on which it feeds are greater than those 

 of somniaria but less than those of fiscellaria. 



