90 THE UNIVERSITY SCIENCE BULLETIN. 



Scutellum yellow with black transverse impression. Elytra green, ner- 

 vures broadly black, apical cells smoky. 



External genitalia: Female, last ventral segment long, convex, lateral 

 margins tapering posteriorly and posterior margin with median half 

 roundingly produced; pygofers long and narrow, forming a keel medially, 

 exceeding ovipositor and clothed with very coarse large hairs. Male, 

 plates short, wide at base, apices quite acutely produced, less than half the 

 length of the long and narrow pygofers; lateral margins of plates and the 

 pygofers with large, coarse hairs. 



Internal male genitalia: Styles short, anterior end acutely pointed, 

 distal half broad, apex truncate with laterally directed tooth; connective 

 T-shaped with short cross piece and long stem, dorsally directed, to meet 

 oedagus, the two parts seeming to be distinct pieces; oedagus consisting of 

 two L-shaped pieces, the short branches directed dorsad and th.e long 

 slender ones caudad and generally crossing each other; a pair of L-shaped 

 processes with thickened terminal portions extend down from the anal 

 tube to the oadagus. 



Distribution: Taken in Douglas, Cherokee, Pottawatomie 

 and Riley counties. 



Hosts: Swept from grasses in low places. 



Kolla geometrica (Sign.). 



(PI. 8, figs. 5-6.) 



Tettigonia geometrica Sign., Ann. Soc. Ent. Fr., ser. 3, ii, p. 12, pi. 1, fig. 12, 1895. 

 Tettigonia psittacella Fowl., Biol. Centr. Am., Homop., ii, p. 290, pi. 19, fig. 26, 1900. 

 Tettigonia geometrica Ball, Proc. la. Acad. Sci., viii, p. 59, pl.*5, fig. 2, 1901. 

 KoUa geometrica Dist., Ann. Mag. Nat. Hist., ser. 8. i : p. 530, 1908. 

 Tettigonia yeometrica Osb., Ohio Nat., ix. p. 461, 1909. 

 Kolla geometrica DeL., Tenn. St. Bd. Ent., Bui. 17, p. 23, 1916. 

 KoUa geometrica Van D., Cat. Hemip. N. A., p. 599, 1917. 

 Kolla geometrica Ols., Bui. Am. Mus. Nat. Hist., xxxviii, p. 5, 1918. 

 KoUa geometrica Ols., Bui. Brooklyn Ent. Soc., xiii, p. 119, 1918. 

 Cicadella geomttrica Lathr., S. C. Agr. Exp. Sta., Bui. 199, p. 32, 1919. 



Form.; Like bifida in structure but smaller. Length, 4.5 to 5 mm. 

 Vertex about twice as long as wide, bluntly rounded. Pronotum as in 

 bifida, wider than the head. Elytra long, not as broad as in bifida, vena- 

 tion simple, lacking cross veins before apical cells. 



Color: Vertex black, with two yellow apical spots and median and 

 basal yellow bands. Face black. Pronotum and scutellum as in bifida 

 but with narrower bands and therefore a larger green discal portion. 

 Elytra green, except for smoky apical cells, with three spots in front of 

 these and costal margin light. 



External genitalia: Female, last ventral segment about as in bifida, 

 perhaps not produced quite as much on posterior margin. Male, plates 

 as in bifida though perhaps more acutely pointed. 



Internal male genitalia: Styles relatively shorter and broader than 

 in bifida; oadagus with upright arms of the L relatively longer than in 



