4- Bythoscopus cognatus n. sp. 



Cinereous or greenish brown, coarsely punctured, elytra subhyaline, 

 alternated with brown and white along their suture; front blackish. Length 

 5 mm. 



\'ertex tinged with yellow ; eyes and ocelli brown, front piceous or 

 brown; clypeus paler, its rounded apex yellowish; lorae black, with a yellow 

 discal spot; cheeks black, with a marginal yellow cloud below the eye. Pro- 

 notum paler on the anterior margin, disc transversely wrinkled and punctured;; 

 scutellum with the ordinary divergent pale lines and black discal dots, elytra 

 cinereous, subhyaline, with a brown cloud from the base of the anti-apical 

 areoles to tip of the clavus, sometimes extended to the apical margin, their 

 suture pale, alternated with fuscous. Wings slightly obscured, nervures 

 brown. Pectoral pieces piceous black, margined more or less broadly with 

 yellow. Legs and venter brown; connexivum, and sometimes the margin 

 of the ventral segment washed with yellow. Last ventral segment of the 

 female a little longer than the preceding, apical angles rounded, disc with a 

 broad, shallow, longitudinal depression, across which the apical margin is 

 slightly concave, teeth minute, depressed. Plates of the male stout, covered 

 with short hairs. 



Described from two males and five female examples taken at 

 Muskoka, Ont., July, 1888. A pale greenish white 9 taken at 

 Lancaster, N. Y. , May 31, 1877; is probably immature. This large 

 well marked torm can be distinguished from our other maculated 

 species by its size, uniform cinereous coloring and the form of the 

 last ventral segment of the female. 



5. Bjrthoscopus fenestratas Fitch. 



Aihysaiius feiiestratns Fitch., Homop. N. Y. State Cab. p. 60, 1S51; 



Trans. N. Y. State Agric. Soc. xviii p. 853, 1858; Rathvon, Mombert 



Hist. Lancaster, County, Pa., p. 551; Packard, U. S. Ent. Com. 



Bulletin No- 7, p. 128 (after Fitch); J. B. Smith, List Insects of N. j. 



p. 446, i8go. 

 Bythoscopus do.. Walker, List of Homop. iv, p. 1162; Provancher, Petite 



Faune Ent. du Can. iii, p. 289, 1890. 

 Pediopsis do., Yan Duzee, List Muskoka Hemip. Can. Ent. xxi, p. 9, 1889. 

 Pediopsis fiavescens Provancher, Nat. Can. iv, p. 376, 1872; Petit Faune 



Ent. du Can. iii, p. 295, 1890. 



Cinereous, or ferruginous brown, paler beneath; front usually discolored; 

 elytra more or less deeply infuscated, fenestrated with whitish hyaline. 

 Length about 4.5 mm. 



Female. — Face finely punctured, ocelli connected by a pale yellowish 

 band, above and below which is a darker shade; front dusky, sometimes 

 almost piceous, with a smooth, paler area on either side; cheeks and sides 

 of the clypeus pale; eyes and ocelli brown. Pronotum finely transversely 

 wrinkled and punctured; scutellum sometimes more deeply colored than the 

 pronotum, basal angles obscurely darker. Elytra grayish, fulvous, or even 

 deep fuscous brown; scutellar margin of the clavus, a spot near its apex. 



