Readio: Ovipositors of Cicadellid.e. 227 



medium in. size, broad ami rounded, regularly spaced except basally, where 

 they are farther apart; bear no secondary teeth; no teeth present at the 

 apex, area of ducts conspicuous, granular in appearance, circular duct open- 

 ings visible, none open ventrallj-, six apically, and many dorsally; the two 

 valves of the pair are joined one to the other by an elongate, narrow, chitin- 

 ized connection present on the doi-sal edge of the basal. area. 



Genus Macropsis Lewis. 

 The ovipositors of two species of this genus have been examined 

 and found to be very similar. They are long, narrow and rodlike, 

 about the same width for entire length, slightly curved, and narrow 

 only at the apex to an obtuse point. The two valves of the pair are 

 not identical as to length, shape of tip, and teeth found at tip. The 

 toothed area occupies only a small part of the length at the apex. 

 The teeth are few in number, rather large, rounded, and may or 

 may not bear secondary teeth. The tip is notched with small teeth 

 in both species. The ducts are elongate, conspicuous, few in num- 

 ber, and located only apically. 



Macropsis viridis (Fitch). 



(PI. XXVI, fig. 1.) 



Length, 2.3 mm.; greatest width, 0.05 mm. Very long, narrow, rodlike, 

 about the same width for entire length, the two valves of the pair are not 

 identical in length, shape of tip, and teeth found at tip; slighth' curved, nar- 

 rows at apex to obtuse point, rather heavily chitinized, strengthening rod 

 extends caudad as far as second dorsal tooth. Toothed area occupies but a 

 small portion at the apex, the longer valve bears two large teeth on its dorsal 

 edge and eleven small, inconspicuous teeth along its ventral edge, the shorter 

 valve bears three large teeth along its dorsal edge and eleven small teeth 

 along its ventral edge, none of these teeth bear secondaiy teeth; the extreme 

 apex of the longer valve is entirely devoid of teeth, while the ventral teeth 

 of the shorter valve extend to the apex, ducts are conspicuous, few in num- 

 ber, elongate, all opening apically, two to four openings visible. 



Macropsis suturalis (Osborn and Ball). 



(PI. XXVI, fig. 2.) 



Length, 2.1 mm.; greatest width, 0.05 mm. Very long, narrow, rodlike, 

 about the same width for entire length; the two valves of the pair are not 

 identical, but differ in length, shape of tip, and teeth at tip; slightly curved, 

 narrows at tip to an obtuse point, chitinization moderately heavy, some- 

 what lighter than in M. viridis; strengthening rod extends caudad as far as 

 fifth dorsal tooth. Toothed area includes only the apical portion ; the longer 

 valve bears on its dorsal edge two large, heavily chitinized teeth at the tip 

 and three large, somewhat less heavily chitinized teeth back from the tip; 

 on its ventral edge are seventeen small teeth which are continuous around 

 the tip; the shorter valve bears three large, heavily chitinized teeth at the 

 tip, three less heavily chitinized teeth back from the tip, both groups being 



