24 SYNOPSIS OF THE GENUS CHLOROTETTIX 



notched two-thirds the way to base, sides of apical half straight, 

 then concavely rounded to form a roundingly angled lobe either 

 side. Plates exposed in the opening of the notch. Pygofers 

 clothed with many hairs on apical half. 



Described from a single female collected at Clarksville, Ten- 

 nessee, June 30, 1915, which is in good condition and so distinct 

 from any of the other species of the genus that it seems best to 

 treat it as new. Type in author's collection. 



Chlorotettix balli Osborn. 



(Figs. 22: a, b, c.) 



Chlorotettix balli Osborn, la. Acad. Sci., 5, p. 246, (1897); Osborn, la. Acad. Sci., 

 5, p. 235, (1897); Osborn, Rept. N. Y. Sta. Ent., 20, p. 539, (1904); DeLong, 

 Tenn. State Ent. Bull., 17, p. 87, (1916). 



Resembling spatulatus in genital characters, last ventral seg- 

 ment of female with spatulate process, but with a much longer 

 vertex. Length 7-7.25 mm. 



Vertex one-half longer on the middle than next the eyes, sub- 

 angulate; front narrowing in almost straight lines to the clypeus 

 which is broader and shorter than in spatulatus, base and tip 

 slightly convex, sides parallel. Pronotum strongly emarginate 

 behind. Elytra hyaline, the veins indistinct. 



Color: Yellowish green, head and pronotum usually darker 

 green, the tip of vertex, margin of venter, and tergum in most 

 specimens suffused with ochraceous. 



Genitalia: Last ventral segment of female long, with a deep 

 notch extending almost to the base and including a spatulate 

 process. The notch is deeper and wider than in spatulatus, and 

 more open at the base of the process. The process is not enlarged 

 at the apex, and reaches only half way to the tips of the sub-acute 

 lateral margins of the segment. Male valve large, longer than in 

 spatulatus, obtusely angled. Plates narrowing more rapidly 

 behind the middle, tips upturned, scarcely acute; a row of 

 bristles along the outer margin; pygofers long, exceeding plates, 

 pointed at tip. 



Specimens are at hand from Ohio, Iowa and Tennessee. The 

 species has also been reported from New York. The type spec- 

 imens in the collection of Dr. Herbert Osborn have been examined. 



