OF WASHINGTON, VOLUME XI, 1909. 127 



the convolutions of the subterminal white line above, on secondaries 

 becoming narrow and indefinite. Body, legs, and abdomen beneath pale. 



Type$ IV, 4, 03; 9 IV, 5, 03, Victoria, B. C. (Ander- 

 son); and six cotypes in author's collection. Besides these are 

 eleven examples, six of 'which 1 have made cotypes in the 

 collection \J . S. National Museum. They are all males and 

 are labeled III, 23, 03 (2) ; IV, 6, 03, Wellington, B. C. 

 (Bryant); IV, 10, 03 (2), Victoria, B. C. (Anderson); III, 

 18, 03, Seattle, Wash. (Kincaid). The rest are in poor con- 

 dition, but from these same localities. 



This is the species I have repeatedly referred to, particularly 

 when describing filmata Pear, as the lachrymosa Hulst, follow- 

 ing the opinion of Rev. G. W. Taylor, as expressed when he 

 described a near relative in this group with its biciliate an- 

 tennas under the name olivacea. A recent study of lachry- 

 mosa in the Hulst collection at New Brunswick, the type of 

 which is a male from Oregon, proves it to possess simple 

 ciliate antennae, and therefore entirely distinct, though super- 

 ficially it bears a great resemblance to this species. There is 

 still another closely related species which I think I can separate 

 on structural characters, described next in order. 



Eupithecia usurpata, new species. 



Expanse, 21 to 23 mm. 



Somewhat smaller, but in shape and color much as is limnata. It is 

 best described by comparison with that species. Front darker, vertex 

 not clear whitish, mottled, or with a central dark spot as in olivacea 

 Say. Antennae bilicate, the cilia shorter, not so silken, with more of 

 a tendency to separate into fascicles. Color above and beneath an even, 

 soft, darker yellowish-brown, not mottled as in limnata, the pale cross- 

 lines and subterminal white line barely traceable, the latter entirely 

 lacking in one example. Discal dots linear black, small on secondaries 

 and beneath, much less clear than in limnata, as is the case with all 

 other markings. Abdomen pale, second segment in one example having 

 a dark line at side, all other specimens without a trace of lateral black 

 line, extending nearly to tip in limnata. A few black dashes centrally 

 and along vein 1 and in type also a row of short black dashes crosM> 

 primaries on veins, along outer border of cxtradiscal pale line. Beneath 

 paler than above, silvery in sheen, a little dusky terminally, the lines 

 above showing through faintly. The pattern of markings in all this 

 group are not easily differentiated by description, though separation 

 is not so difficult as would seem. It flies with limnata in the same 

 localities and may yet prove a variety of it, though I do not now believe 

 that it is. 



