72 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



O. cognatus (Van Duzee). Bythoscopus cognatus Van Duzee. 



Ent. Amer., vi, 226, 1890. 



Ashy brown, suture of elytra alternated light and dark, front 

 dark. Vertex, pronotum and scutellum reddish brown. Female 

 segment slightly concave. Length 5 mm. 



Reported as feeding on hazel in Maine. 



Portland, 5 June, 1914 (B. H. W.) ; Lyme, 16 June, 1918 (M. P. Z. and 

 B. H. W.) ; Cornwall, 5 June, 1921 (B. H. W.). 



O. fitchi Van Duzee. Athysanus fene stratus Fitch. 



Check List Hemip., 65, 1916: Homop. N. Y. St. Cab., 60, 1851. 



Pale to reddish brown, elytra infuscated, with whitish hyaline 

 spots, nervures or many of them often broadly brown. Ocelli con- 

 nected by a yellow band, vertex and front darker, yellow to brown. 

 Length 4.5 mm. 



It feeds on birch and perhaps willow, a form very similar to 

 minor. 



North Branford, 8 June, 1912 (B. H. W.) ; Guilford, 26 July, 1926 

 (M. P. Z.). 



O. pruni (Provancher). Bythoscopus pruni Provancher. 



Pei. Faune Ent. Can., iii, 290, 1890. 



Ash-colored, usually dark, face yellow, vertex with a black band, 

 elytra hyaline, veins black, a transverse band on cross nervures and 

 apex of elytra dark. Length 4-4.5 mm. 



A common species in early summer on wild plum and birch 

 throughout the New England states. 



New Haven, 7 July, 1930; Orange, 22 Tune, 1920; Portland, 25 July. 

 1920 (B. H. W.) ; Guilford, 13 July, 1920 (B. H. W.) ; Litchfield, 22 July, 

 1920 (P. G.) ; Westport, 24 June, 1921 (W. E. B.). 



O. minor (Fitch). Athysanus minor Fitch. Macropsis ocellatus 

 Provancher. 



Homop. N. Y. St. Cab., 60, 1851. 



Resembling fitchi but smaller, with elytra more uniform in color, 

 either hyaline or brownish. Female segment slightly produced 

 medially, with a pair of short teeth including a shallow notch. 

 Length 4 mm. 



Reported as feeding on birch. Specimens from Connecticut are 

 labeled "birch." , 



New Haven, 21 June, 1909 (B. H. W.) ; 9 June, 1914 (Q. S. L.) ; 

 Hamden, 30 June, 1913 (B. H. W.) (on birch) ; Rainbow, 13 June, 1916 

 (B. H. W.) ; Orange, 22 June, 1920 (B. H. W.). 



O. nigrinasi (Fitch). Athysanus nigrinasi Fitch. Pediopsis 

 flavescens Provancher. 



Homop. N. Y. St. Cab., 61, 1851. 



Variable in color, yellowish to brown, elytra marked as in 

 fcncstratus, subhyaline, with two more or less conspicuous brown- 

 ish transverse bands. Front usually black, female segment bilobed. 

 Length 4 mm. 



