176 



THE UNIVERSITY SCIENCE BULLETIN. 



stout, slightly exceeded by the ovipositor, sparsely spined. Male, valve 

 large, triangular, apex very obtuse or truncated, sides notched; plates 

 twice the length of the valve, margins rounding basally to the middle, 

 then nearly parallel to the truncate apices which nearly or quite equal the 

 robust and short pygofers. 



Distribution: Probably occurs throughout the state as 

 shown by the following map : 



Hosts: Osborn and Ball give Elymus canadensis as the host 

 of this species. 



Euscelis curtisii (Fh.). 



Amblycephalus curtisii Ph., Homop. N. Y. St. Cab., p. 61, 1851. 



Tettigonia curtisii Walk., List Homop., iv, p. 1159, 1852. 



Jassvs nervatus Prov., Nat. Can., iv, p. 378, 1872. 



Deltocephalus curtisii Prov., Pet. Faune Ent. Can., iii, p. 278, 1889. 



Athysanus curtisii Van D., Psyche, v, p. 290, 1890. 



Athysanus curtisii Osb., Proc. la. Acad. Soi., i, pt. 2, p. 126, 1892. 



Athysanus curtisii O. & B., Proc. la. Acad. Sci., iv, p. 221, 1897. 



Athysanus curtisii O. & B., Proc. Dav. Acad Sci., vii, p. 91, pi. 5, fig. 1, 1898. 



Athysanus curtisii O. & B., Ohio Nat., ii, p. 251, 1902. 



Athysanus curtisii Osb., 20th Kept. N. Y. St. Ent., p. 529, 1905. 



Athysanus curtisii Osb., U. S. Dept. Agr., Div. Ent, Bui. 108, p. 91, fig. 22, 1912. 



Athysanus curtisii Osb., Me. Agr. Exp. Sta., Bui. 238, p. 125, 1915. 



Athysanus curtisii DeL., Tenn. St. Bd. Ent., Bui. 17, p. 62, 1916. 



Euscelis curtisii Van D., Cat. Hemip. N. A., p. 660, 1917. 



Euscelis curtisii Pent., Ohio Jl. Sci., xviii, No. 6, p. 185, 1918. 



Form: Short and stout. Length, 3 to 3.5 mm. Vertex one-half longer 

 on middle than against eye, about as wide as long, broadly rounding with 

 front, right-angled apically. Pronotum slightly longer than vertex, lat- 

 eral margins very short, humeral margins distinct, long, posterior margin 

 very slightly emarginate. Elytra broad and short, usually equalling or 

 exceeding the abdomen, venation simple. 



Color: Vertex yellow with two large black spots before the middle 

 and sometimes black marks apically. Pronotum with broad, shining, 

 black anterior band, a wide median yellow band and a narrow, black pos- 



