68 THE UNIVERSITY SCIENCE BULLETIN. 



Idiocerus suturalis Fh. 



Idiocerus suturalis Fh., Homop. N. Y. St. Cab., p. 59, 1851. 



Bythoscopus suturalis Walk., List. Homop., iv, p. 1162, 1852. 



Idiocerus suturalis Van D., Can Eut , xxi, p. 8, 1899. 



Idiocerus suturalis Van D., Psyche, v, p. 388, 1890. 



Idiocerus suturalis G. & B., Hemip. Colo., p. 80, 1895. 



Idiocerus suturalis O. & B., Proc. Dav. Acad. Sci., vii, p. 134, 1898. 



Idiocerus suturalis Ball, Can. Ent., xxxiv, p. 311, 1902. 



Idiocerus sxtturalis Osb., 20th Kept. N. Y. St. Ent., p. 506, 1905. 



Idiocerus suturalis Osb., Me. Agr. Exp. Sta., Bui. 238, p. 95, 1915. 



Idiocerus suturalis Van D., Cat. Hemip. N. A., p. 576, 1917. 



Form: Larger than preceding species. Length, 5 to 5.75 mm. 



Color: Light yellow, with pronotum and scutellum frequently marked 

 in places with light brown, the basal angles of the latter sometimes with 

 black triangles; elytra with sutural margins broadly marked with brown 

 band which narrows to tip of clavus and then expands on membrane into 

 a smoky area. 



External geriitalia: Female, last ventral segTuent with lateral mar- 

 gins about half as long as median length, due to a broad median lobe; 

 pygofers broad and long, exceeded by ovipositor by about one-fifth their 

 length. Male, last ventral segment very narrow, median incision broad 

 and with a broad, short, triangular process; plates long and narrow, ex- 

 ceeding the short pygofers. 



Distribution: Hitherto taken only in Douglas and Logan 

 counties. 



Hosts: Willov^s seem to be the ordinary host. Van Duzee 

 reports taking specimens from poplar and birch, also. 



Idiocerus pallidus Fh. 



(PI. 4, figs. 1-3.) 

 Idiocerus pallidus Ph., Homop. N. Y. St. Cab., p. 59, 1851. 

 Bythoscopus obsoletus Walk., List. Homop., iii, p. 873, 1851. 

 Bythoscopus pallidus Walk., List Homop., iv, p. 1162. 1852. 

 Idiocerus pallidus Van D., Can. Ent., xxi, p. 8, 1889. 

 Idiocerus unicolor Osb., Proc. la. Acad. Sci., i, pt. 2, p. 126, 1892. 

 Idiocerus pallidus G. & B., Hemip. Colo., p. 76, 1895. 

 Idiocerus pallidus O. & B., Proc. Dav. Acad. Sci., vii, p. 135, 1898. 

 Idiocerus pallidus Osb., Me. Agr. Exp. Sta., Bui. 238, p. 93, 1915. 

 Idiocerus pallidus DeL., Tenn. St. Bd. Ent, Bui. 17, p. 11, 1916. 

 Idiocerus pal'Mxis Gibs., Can. Ent., xlix, p. 75, 1917. ' 



Idiocerus pallidus Van D., Cat. Hemip. N. A., p. 575, 1917. 

 Idiocerus pallidus Pent., Ohio Jl. Sci., xviii. No. 6, p. 182, 1918. 



Form : This and the following species are the largest members of this 

 genus known to occur in the state. Broad. Length, 6 to 6.5 mm. Dis- 

 tinguished from duzeei by usually having long, triangular, outer ante- 

 apical cell. 



Color: Our specimens are almost uniformly pale green with the eyes 

 reddish-brown. Elytra are frequently iridescent but not fuscous-tipped 

 as in duzeei. 



