Readio: Ovipositors of Cicadellid.e. 229 



Bythoscoptis miscellus (Stal). 



(PI. XXV, fig. 11.) 



Length, 1.27 iniu.; greatest width, 0.08 mm. About the same width for 

 entire length; distinctlj^ curved, tip narrowed abruptly from a slight promi- 

 nence on the dorsal edge about eight-ninths of the length to a broadly rounded 

 e.xtreme apex; chitinization medium heavj', somewhat lighter than in B. 

 apicnlis; strengthening rod extends caudad as far as fourteenth doi-sal tooth 

 from the apex. Toothed area on dorsal edge occupies a little less than the 

 apical third; teeth numerous, small, rather sharjily pointed, irregular, un- 

 evenly si)aoed: bear no secondary' teeth; the tip is notched with teeth which 

 are continuous around the tip, ten to eleven on the ventral edge; ducts con- 

 spicuous, elongate, few in number; one group opens apically, another at the 

 basal end of the toothed area, and another in the basal rod about midway; 

 the tw^o valves of the pair are joined one to the other by a distinct, elongate, 

 chitinized connection jiresent on the dorsal edge about midway. 



Subfamily CICADELLINiE Van Duzee. 



Genus Oncometopia Stal. ^ 



The ovipositors of two species of this genus have been examined 

 and found to be simihir, though having some very distinct differ- 

 ences. The ovipositor of 0. iindata more closely resembles the 

 ovipositor of Homalodisca triquetra than it does the ovipositor of 

 0. lateralis. In the ovipositors of this genus we find a narrow, 

 curved, rodlike basal attachment, and a broad, fiat, apical shaft 

 bearing teeth along its dorsal edge, and a preapical prominence on 

 its ventral edge. The primary teeth in each case bear secondary 

 teeth. The tip is notched with small teeth on both edges; the ducts 

 are conspicuous, elongate, numerous, and distinctly curved. 



Oncometopia' undat a (Fabricius) . 



(PI. XXII, fig. 3; pi. XXVI, fig. 4.) 



Length of toothed area, L8 mm.; greatest width, 0.27 mm. Narrow and 

 rodlike at base, widens beyond base into flat, broad apical shaft, which is 

 about the same width for entire length and tapers only at the apex; pre- 

 apical prominence present, conspicuous, broadly rounded; apical shaft slightly 

 curved, tip broadly rounded, chitinization medium; strengthening rod extends 

 caudad as far as last doi-sal tooth. Toothed area on dorsal edge occupies 

 entire length of broadened shaft; teeth thirty-one to thirty-two in number, 

 of medium size, of a general triangular shape with the caudal side much 

 longer than the cephalic side; apices rounded, regular, evenly spaced, more 

 heavily chitinized than the rest of the valve; possess secondary teeth on both 

 caudal and cephalic edges, one to four on cephahc edge and two to five on 

 caudal edge, those on the caudal edge much larger than those on the cephalic 

 edge; tip notched with small teeth on both dorsal and ventral edges, not con- 

 tinuous around the tip, fifteen teeth present on ventral edge between preapical 



