Readio: Ovipositors of Cicadellid.e. 231 



be5'ond curved basal attachmont; tip bluntly rounded, chitinization medium; 

 strengthening rod extends caudad as far as third dorsal tooth from apex. 

 Toothed area on dorsal edge occupies the entire length of the apical shaft; 

 teeth forty-one to fortj'-thrce in number, rather small, in the shape of a flat- 

 tened isosceles triangle, regular in size and shape, evenly spaced; the first 

 twelve teeth bear no secondary teeth; the teeth caudad of the first twelve teeth 

 bear four to ten secondary teeth on the caudal side; tip notched with small 

 teeth on both dorsal and ventral edges, not continuous aroimd the tip; thirty- 

 five to thirtj'-seven teeth on ventral edge between preapical prominence and 

 extreme apex; ducts conspicuous, elongate, rather narrow, curving, numerous, 

 most numerous apically; open apically, along dorsal edge, near but not in 

 teeth, and in face of valve back from edge; the first twelve teeth are not 

 served by ducts. 



Genus Cicadella Latreille. 



The ovipcsitors of two species of this genus have been examined 

 and found to be similar. In each case the ovipositor consists of a 

 narrow, curved basal attachment and a wider apical shaft which 

 bears teeth along its dorsal edge, in turn bearing secondary teeth. 

 A preapical prominence is present in one species, absent in the other. 

 The tip is notched on both dorsal and ventral edges. The ducts 

 are rather inconspicuous, elongate, rather few in number, and dis- 

 tinctly curved. 



Cicadella hicroglyphica (Say). 



(PI. XXII, fig. 7; pi. XXVI, fig. 9.) 



Length, 1.66 mm.; greatest width, 0.13 mm. Curved basal attachment nar- 

 row and rodlike; apical portion consists of a broad, flat shaft, about the same 

 width for entire length, tapering only at apex, preapical prominence present 

 on the ventral edge, obtuse-angled; onl}- slightly curved; apex greatly nar- 

 rowed and acutely pointed, very lightly chitinized; strengthening rod ex- 

 tends caudad as far as last dorsal tooth. Toothed area on dorsal edge occu- 

 pies the entire length of the apical shaft ; teeth seventeen to eighteen in num- 

 ber, medium in size, somewhat triangular with the apex flattened and the 

 caudal side slightly longer than the cephalic, regular in size and shape, evenly 

 spaced, more heavily chitinized than the rest of the valve; bear a large num- 

 ber of small, irregular, secondary teeth on both edges; tip notched with small 

 teeth on both edges; a large number of very small teeth occur between the 

 tip of the preapical prominence and the extreme apex; ducts rather incon- 

 spicuous, few in number greatly curved; open apically, along dorsal edge in 

 and near teeth, and a few in the face of the valve back from the edge. 



Cicadella circellata (Baker). 



(PI. XXII, fig. 8; pi. XXVI, fig 8.) 



Length, 1.6 mm.; greatest width, 0.09 mm. Apical, flattened portion only 

 slightly wider than basal portion; preapical prominence wanting; only slightly 

 curved, tip greatly narrowed but rounded at extreme apex, chitinization 

 rather light but heavier than in C. hieroglyphica; strengthening rod extends 

 caudad as far as and beyond last dorsal tooth. Toothed area on dorsal edge 



