﻿— 225 — 



ocelli, a dusky line on the base of the front and on the posterior 

 margin of the dorsal segments of the abdomen, and in having the 

 elytra of a deeper brown color. 



This large, plainly colored species is most closely related to 

 variabilis, to which it is allied by the form of its ultimate ventral 

 segment, its convex face and sloping pronotum, otherwise it is quite 

 distinct. Its rediscovery at Ottawa, by Mr. Harrington, is interest- 

 ing as placing in its systematic position one more of Walker's nu- 

 merous vmcertain species. 



3. Bythoscopus distinctus n. sp. 



Pale yellow, or cinereous punctured with fuscous above, yellow beneath; 

 elytra subhyaline maculated with brown 9, or fuscous with a commissural 

 and large costal spot hyaline r^\ apical areoles four, anti-apicals two. Length 

 3.5—4.5 mm. 



?.rale. — Vertex, pronotum and scutellum punctured witii fuscous. Pro- 

 notum more or less clouded withni the posterior and lateral margins. Scu- 

 tellum marked with a triangular spot within the basal angles, the transverse 

 impressed line, two points before this and sometimes the median line black. 

 Elytra fuscous, darker on the clavus and apex of the corium and marked 

 with a whitish spot before the apex of the clavus and a larger costal spot on 

 the anti-apical areoles, costal nervure yellow. Wings subhyaline, nervures 

 fuscous. Beneath pale yellow, clouded with blackish on the pleural pieces; 

 legs pale, spines of the tibiae brown; tergum fuscous, segments edged with 

 yellow. Genitalia whitish, pygofers embrowned. 



Female. — Commonly paler than the male, with fewer fuscous punctures 

 above; on the elytra the hyaline spots are more extended, or they may be 

 entirely subhyaline with two brown spots on the conmiissural margin of the 

 cla\us and a shade on the apex of the corium. 



In this species the vertex is short, the face, but feebly convex, the apex 

 of the clypeus rather narrow, rounded, and the margins a little reflexed, and 

 the head, pronotum and scutellum, are covered rather sparingly with large 

 punctures. Last ventral segment of the female long, cylindrical, with a dis- 

 tinct, but iiarroiv median groove, its apical margin feebly rounded and mi- 

 nutely notched on the middle. 



Described from five male and nine female examples. Buffalo, 

 one example swej)t from low bushes of Populiis orandidentata July 

 10. 1S89. Lancaster, N. Y., July and August. Niagara Falls, on 

 oak M. C. Van Duzee. Maryland, June nth, and Illinois. Uhler. 

 Mt. Balsam, N. C, July, 1890, W. J. Palmer, Jr. 



Although a very distinct species, the pale females bear some 

 resemblance to cognatiis, from which they may be distinguished by 

 the number of elytral areoles and the narrow groove of the ultimate 

 ventral segment. 



