Readio: Ovipositors of Cicadellid^. 255 



visible; the two ^■alves of the pair are joined one to the other by a heavily 

 chitinized connection present on the dorsal edge of the basal area, occupying 

 about a fourth of the entire length and a half of the width. 



Genus Acinopterus Van Duzec. 



The ovipositors of three species of this genus have been examined 

 and found to be very similar. In each case the ovipositor is greatly 

 curved, the basal portion only slightly narrower than the apical 

 portion, which bears teeth along its dorsal edge. The primary teeth 

 are few in number, and differ in number and in the number of sec- 

 ondary teeth they bear in the various species. The margin of the 

 valve between the primary teeth is notched with small teeth. The 

 tip in each case is notched with small teeth on both dorsal and 

 ventral edges. The area of ducts may or may not be conspicuous, 

 when visible granular in appearance with duct openings visible. 

 The two valves of the pair are joined one to the other by an elon- 

 gate, curved, chitinous connection present on the dorsal edge of 

 the basal area. 



Acinopterios acuminatus Van Duzee. 



(PI. XXIV, fig. 6; pi. XXXII, fig. 3.) 



Length, 1.5 mm.; greatest width, 0.12 mm. Apical portion only slightly 

 wider than basal portion, tapers slightly caudad; bears a small preapical 

 prominence on the ventral edge; greatly curved, chitinization moderately 

 light; strengthening rod extends caudad as far as last or next to last dorsal 

 tooth of large size. Toothed area on dorsal edge occupies somewhat less than 

 the apical half; primary teeth seven in number, small, rounded, regular as to 

 size and shape, unevenly .spaced; bears three to four small secondary teeth 

 on the caudal edge, margin of valve between primary teeth bears numerous 

 small, regular, secondary teeth; tip notched with small teeth on both dorsal 

 and ventral edges, not continuous around the tip, about fifteen present on the 

 ventral edge; area of ducts conspicuous, granular in appearance, circular 

 duct openings visible; open along ventral apical edge (seven), at extreme 

 apex (two), along dorsal edge of toothed area, and in the basal region; the 

 two valves of the pair are joined one to the other by a distinct, curved, heavily 

 chitinized connection present on the dorsal edge of the basal area. 



Acinopterits viridis Ball. 



(P!. XXXII, fig. 1.) 



Length, 1.7 mm.; greatest width, 0.16 mm. Apical portion only slightly 

 wider than basal portion, nan-owed caudad at apex, bears no preapical promi- 

 nence; greatly curved, tip narrowed, ends in rounded extreme apex, chitiniza- 

 tion light; strengthening rod extends caudad almost to apex. Toothed area 

 on dorsal edge occupies the apical third; only two primary teeth present, 

 these located near the base of the toothed area, small, rounded, bear two to 

 three small secondary teeth on their caudal edges; the margin of the valve is 

 notched with many small, regular secondary teeth; tip is notched on both 



