THE CANADIAN ENTOMOLOGIST. S3 



present, and a number of reflexed veinlets to the costa. Female segment 

 short, lateral angles rounding, posterior margin rounding, with a deep, 

 narrow, median slit extending almost to the base. 



Colour : Vertex and pronotum lemon-yellow, a pair of faint strifes 

 adjoining the median line on disc of vertex, and a few milky irrorations on 

 disc of pronotum. Scutellum orange, with three ivory points on apical 

 portion. Elytra milky, washed with pale brown, omitting a definite band 

 across the second cross nervure, and an irregular broader one before apex. 

 Nervures brown, shading to black on the white bands, and reflexed 

 veinlets. 



Described from a single female from near the Catalina mountains, in 

 Arizona. In venation and general appearance this species approaches the 

 genus Platymetopius, but it lacks the structure of vertex and front found 

 in that genus, and seems more closely related to blandus and its allies. 



Scaphoideus pellucidus, n. sp.— Size and form of blandus nearly, 

 darker, and with a much longer vertex. Length, $ 5.75 mm.; $ 5 mm. 



Vertex strongly, acutely angular, the margins straight, and the disc 

 flat or slightly depressed, distinctly longer than the pronotum. Head, as 

 seen from the side, with the vertex margin produced and foliaceous. 

 Front concave above, convex below, broad above, margins angularly 

 narrowing to the antennae, then gradually sloping to the constricted 

 clypeus. Elytra long and slender, venation obscure, spaces between the 

 nervures and along the margins irregularly divided by cross nervures and 

 pigment lines. 



Colour : Vertex lemon-yellow, the margins before the eyes and the 

 median line narrowly white and closely lined with black, usually a pair of 

 broad sanguineous stripes outside the median black ones, and often 

 extending across the pronotum in highly-coloured specimens. Pronotum 

 olive-brown on disc, mottled with milky, anterior margin shading to 

 yellow. Elytra washed with iridescent olive brown, becoming fuscous 

 toward the apex and costa. Whole surface interspersed with numerous 

 irregularly oval pellucid spots in sharp contrast. 



Genitalia : Female segment moderately long, posterior margin 

 rounding, with the median fourth roundingly produced and semicircularly 

 notched : male : valve obtusely triangular, plates gibbous at base, then 

 triangularly produced, with the apices acute. 



Described from eight examples from Stanford and Colfax, California. 

 The foliaceous vertex renders this a strikingly distinct species in the genus. 



