232 THE UNIVERSITY SCIENCE BULLETIN. 



Gnathodus punctatus Mel., Cicad. Mitt. Eur., p. 314, pi. 12, figs. 5-8, 1896. 

 Gnalhodus punctatus Edw., Hemip. Homop. Brit. Isds., p. 191, pi. 21, fig. 10, 1896. 

 Balclutha punctata Mats., Termes. Fuzet., xxv, p. 358, 1902. 



Balclutha ptinctafa Osb., Me. Agr. Exp. Sta., Bui. 238, p. 149, 1915; Bui. 248, p. 79, 

 1916. 



Balclutha punctata DeL., Tenn. St. Bd. Ent., Bui. 17, p. 96, 1916. 

 Balclutha punctata Van D., Cat. Hemip. N. A., p. 696, 1917. 



Form: Distinctly elongate, narrowing posteriorly. Length, .3.5 to 4 

 mm. Head much narrower than pronotum, vertex slightly longer on 

 middle than next the eye, over three times as wide as long, sloping, and 

 broadly rounding with front. Pronotum long, anterior margin strongly 

 convex, posterior margin slightly concave, broadest at lateral angles. 

 Elytra very long, overlapping at apex. 



Color: Greenish or yellowish-green. Vertex yellowish-green, un- 

 marked, or with three faint brownish longitudinal stripes. Pronotum 

 yellowish-green, darker on the disc, unmarked, or with five brownish 

 longitudinal stripes. Scutellum pale, often with basal angles and two 

 spots on disc fuscous. Elytra greenish with hyaline smoked tips or 

 milky-white with green nervures, always marked with black or brown 

 spots. Face yellowish-green, often washed with fuscous. 



External genitalia: Female, last ventral segment long, posterior mar- 

 gin truncate; pygofers long and narrow, spiny, equalling ovipositor. 

 Male, valve very small, just visible from under last ventral segment, 

 rounded posteriorly; plates broad, triangular, spiny margins convexly 

 narrowing to the produced and filamentous apices which nearly equal the 

 pygofers. 



Intervul male genitalia: Styles truncate anteriorly, lacking the usftal 

 anterior process, then narrowing on both sides, especially the inner, to 

 the middle, then widening to a subacute angle on the lateral margin 

 formed by a deep and fairly wide lateral incision which bears a few hairs, 

 the apical process long and narrow and curving strongly to the acute 

 tip; connective Y-shaped, the arms widest at point of attachment to 

 styles, then narrowed and bent mesad anteriorly, the stem longer than the 

 rounding arms, and widened and slightly concave basally; cedagus with a 

 large swollen base, then suddenly narrowing to a long delicate terminal 

 lash. 



Distrihution: Douglas county .seems to be the only one in 

 which this species has yet been taken. The Snow collection 

 also contains specimens from Kansas City, Mo. It probably 

 occurs throughout the eastern portion of the state. 



Hosts: Professor Osborn counts this species as of probable 

 economic importance due to its occurring in grasses and cereal 

 crops. He mentions Canadian bluegrass as a definite host. The 

 writer has taken this species on Elymus in Douglas county. 



