1907.] NATURAL SCIENCES OF I'lIILADELPHIA. 479 



female ol)li(iuely truiioatccl, scarcely simiuted. Length S nun., wiilth 

 across the elytra 3 nmi. 



Described from one pair taken on Mt. Washinfjton by Mrs. Annie 

 Trumbull Slosson. It affords me pleasure to dedicate tiiis interesting 

 species to Mrs. Slosson as a slight recognition oi licr valuable services 

 to entomology in bringing to light so many new and rare insects. 



This species may readily be recognized by its uniformly dark 

 color, slender form and narrow elytra witii the appendix but slightly 

 developed. 

 Helicoptera variegata n. sp. 



Larger than pallida and opaca; grayish varied with pale fuscous 

 brown. \'ertex shorter than in any other Helicoptera known to me, 

 about the length of the eye in its greatest superior diameter, regularly 

 rounded before, disk pale with a longitudinal furrow, edge reflexed, 

 darker. Front narrow, contracted l)asally, the sides almost sinuated, 

 distinctly tricarinate and with the clypeus pale brownish shading to 

 darker basally and along the carinae, more or less distinctly irrorated 

 with i)ale; clypeal suture quite strongly angulated. Pronotum shorter 

 and more deeply emarginate than in pallida, the produced anterior 

 margin rounded between the eyes, lateral carinse broadly rounded 

 outwardly, median carina feeble but almost attaining the anterior 

 margin in one example, upper surface of the pronotum brown or fer- 

 ruginous brown, closely irrorated with pale, below the carinate edge 

 deep black, bordered with white. Mesonotum brown or ferruginous, 

 irrorated with pale, becoming darker before the pale apex and marked 

 with a darker line without the base of the lateral carinse close to the 

 basal angles. These carina feeble, especially the median. Elytra 

 brown varied with gray patches, most conspicuous of which is one 

 along the base of the inner claval area, about four very irregular and 

 indefinite ones along the median line of the coriiun and another adjoining 

 the blackish apex of the clavus; the dark areas irrorate with pale in 

 places and the nervures more or less irrorated, those at the apex pale; 

 about three fuscous points in the costal area and three others approxi- 

 mate in the apical field. Wings smoky, darker toward their apex, the 

 nervures fuscous. Beneath testaceous varied with pale brown; disk 

 of the ventral segments sometimes fuscous. Legs pale brown with the 

 knees still paler. Sides of the genital segment of the female quite 

 deeply angularly emarginate. Length 8 to 10 mm. ; width across the 

 elytra about 4 mm. 



Described from one female example taken by Mr. W. Metcalf at 

 Ottawa, Ontario, and a pair somewhat longer and paler taken by Mrs. 



