30 Journal New York Entomological Society, t^^o'- xxiii. 



Oregon, received from Dr. Wilson. In this very distinct species the 

 costal nervure is broadly expanded, especially in the male, reaching 

 a width of nearly one millimeter. 



8. Platypedia intermedia new species. 



Size and aspect of ampliata but with larger and narrower elytra ; supra- 

 antennal plates narrower and more oblique than in ampliata, not at all ex- 

 panded or depressed against the front; humeral angles less produced and more 

 rounded, the sides anteriorly regularly and feebly rounded. Last ventral 

 segment of male short and broad, the apex sinuated ; valve longer (4 mm.) 

 and narrower ; uncus rather slender, nearly straight below, arcuated above, 

 its apex subacute but not at all unturned. Last ventral segment of female 

 with a deep incision which is much broader posteriorly than in ampliata. 

 Elytra 8 by 19 mm., costal nervure broad but of equal width to the apex of 

 the costal areole, this areole about 2J/2 by 11 mm.; marginal areole much 

 widened apically (about >^ mm.) ; second ulnar transverse, its inner margin 

 nearly rectilinear, the feeble angle at about one third the distance from the 

 apex; apical areoles eight. Length of insect 18 mm., expanse 22, mm. 



Described from numerous examples of both sexes taken in Marin 

 and Sonoma Counties, Calif., in April and May. 



9. Platypedia areolata Uhler. 



Uhler, Proc Acad. Nat. Sci. Phila., XIII, p. 285, 1862 (Cicada). 



Mr. W. T. Davis has kindly sent me a specimen compared with 

 the type from east of Fort Colville which enables me to locate the 

 name on our larger pale form which seems to be common from the 

 Bay Region of San Francisco northward through Washington. It 

 varies in length from 17 to 20 mm. with an expanse of about 52 mm. 

 The color is more dull and obscure than in pntuami with very little of 

 the steel-blue tint, the pale markings are more yellowish, rarely tinted 

 with orange. The last ventral segment of the male is narrower and 

 almost triangularly produced at apex; the uncus is a little sinuated, 

 nearly parallel-sided to the apical third, then narrowed to an obtuse 

 tip ; costal nervure broad but scarcely expanded ; second ulnar areole 

 transverse, the inner margin nearly straight as in intermedia; 

 marginal areole a little widened in the male ; supra-antennal plates 

 transverse, scarcely oblique. 



I have examined a good series of this form taken by Dr. F. E. 

 Blaisdell in Marin and Sonoma Cos. and another series in the col- 



