OF WASHINGTON. 235 



Wings entirely snow-white or cream-white; veins and sculpture of 



wings indistinct var. niveifennis, n. var. 



Vertex a little convex anteriorly, frontal lobes narrow and more dis 

 tinctly separated from the vertex; wings submembranaceous at 

 apical half; radius and 3d and 4th furcals greatly undulated, 2d 

 marginal cell reniform arbuti, n. sp. 



Euphyllura arctostaphyli, n. sp. 



Length 2.4-2.8 mm. Head and thorax reddish brown, or brownish red, 

 or brownish ^yellow, abdomen blood-red, femora honey-yellow, tibiae red-, 

 dish, wings dark brown, or reddish brown, either uniformly so, or more 

 or less maculated with whitish, or with a transverse white fascia at basal 

 third. Subopaque, not pubescent ; head strongly obliquely deflexed, more 

 or less distinctly rugoso-punctate ; vertex posteriorly nearly straight, ar- 

 cuatelv narrowed each side at insertion of antennae, anterior margin 

 straight, and even not sinuate at the ocellus, at middle hardly as long as 

 half its width at base, surface 

 flat, discal impressions puncti- 

 form, moderately deep; genae 

 prominent in front of eyes caus 

 ing the vertex to appear dentate 

 each side; frontal lobes not, or 

 very indistinctly separated from 

 the vertex, nearly half as long as 

 the latter, contiguous through 

 out, not narrowed apicaliy, 

 rounded at the sides, at anterior 

 margin conjointly nearly trun- ?^.<>.-Kuph y Uura arctostaphyli. 



cate, or separately feebly round 

 ed ; eyes moderately convex, not globose; antennae a little shorter than 

 head and thorax together, nearly filiform, basal joints reddish, interme 

 diate joints pale, terminal joints usually blackish and very little thicker, 

 third joint fully one-third longer than the fourth. 



Surface of thorax finely and densely punctulate, but the sculpture is 

 often obsolete ; pronotum and dorsulum strongly ascending posteriorly, 

 the former comparatively long with the posterior edge slightly emargi- 

 nate ; dorsulum small, but little longer than pronotum and nearly three 

 times wider than long; mesonotum hardly descending posteriorly, dis 

 tinctly longer than dorsulum, without distinct markings. 



Wings about 2^ times longer than wide, suddenly widened at base, then 

 parallel, the apex suddenly and narrowly rounded near anterior costa, 

 then oblique'}' arched and gradually merging into the posterior costa ; 

 opaque, leathery, with fine, sparse transverse rugae and still more finely 

 rugulose between the rugae; costa sinuate at outer portion of anterior 

 basal cell and slightly indented at terminus of first furcal ; veins mode 

 rately prominent, becoming finer apically; cubitus a little longer than 



