Readio: Ovipositors of Cicadellid.^. 237 



Gypona octo-lineata (Say). 



(PI. XXIII, fig. 1; pi. XXVIII, fig. 8.) 



Length, 2 iiun.; greatest width, 0.48 mm. Consists of a rather narrow basal 

 portion, which widens out into a broad, apical portion, which narrows caudad 

 to the apex, point of greatest width about midway; no preapical prominence; 

 shghtiy curved, tip greatly narrowed with the extreme apex broadly rounded, 

 chitinization moderately heavy; strengthening rod extends caudad almast to 

 apex. Toothed area on dorsal edge occupies about a half of the apical length; 

 teeth numerous, rather small, rounded, irregular in size, shape- and spacing; 

 bear no secondary teeth; tip bears small teeth on both dorsal and ventral 

 edges, not continuous around the tip, thirteen on ventral edge; ducts con- 

 spicuous, large, numerous, apparently arising from a common cavity in the 

 center of the valve, most numerous at the tip; open along ventral apical edge, 

 at extreme apex, and along the dorsal edge for the entire length, though very 

 few in basal region. 



Gypotia biniaculata Spangberg. 



(PI. XXVIII, fig. 5.) 



Length, 3.17 mm.; greatest width, 0.42 mm. About the same width for en- 

 tire length, bears a broadly rounded, heavily chitinized prominence on the dor- 

 sal edge somewhat less than midway of the length, tapers caudad toward apex; 

 slightly curved, tip gradually naiTOwed, ending in a blunt point, chitinization 

 hea\-y, much hea\ ier than in G. octo-lineata; strengthening rod extends caudad 

 almost to apex. Toothed area on dorsal edge occupies about one-third of 

 apical length; teeth numerous, rather small, rounding, iiTegular in size and 

 shai)e; bear no secondaiy teeth; tip notched on dorsal edge and at extreme 

 apex with small teeth, none present on ventral edge; ducts conspicuous, very 

 large, rather straight; open apically and along dorsal and ventral edges for 

 the length of the toothed area, a few also open in the basal region. 



Gypona angulata Spangberg. 



(PI. XXVIII, fig. 6.) 



Length, L75 mm.; greatest width, 0.35 mm. Apical portion somewhat wider 

 than basal, point of greatest width about midway, tapers caudad to apex; 

 only slightly curved, tip gradually narrowed with the extreme apex rounded, 

 chitinization moderately heavy; strengthening rod extends caudad to within 

 a short distance of tip. Toothed area extends from the prominence on the 

 dorsal edge to the apex; teeth numerous, small and indistinct, rather flatly 

 rounded, verj' irregular in size, shape and spacing; bear no secondary teeth; 

 no teeth on tip; ducts consi;Hcuous, large, numerous, broadly curving, most 

 numerous apicall}^; open apically, along ventral apical edge, along dorsal 

 edge of toothed area, and a few in the basal portion of the valve. 



Gypona pectoralis Spangberg. 



(PI. XXVIII, fig. 7.) 



, Length, L83 mm.; greatest width, 0.42 mm. Very broad and heavy for 

 entire length, point of greatest width about midway, where there is a broadly 

 rounded prominence on the dorsal edge, narrows caudad to apex; slightly 

 curved, tip greatly narrowed with extreme apex rounded, chitinization very 



