CICADELLINAE : PART I. PROCONIINI 145 



width greater than transocular width of head, lateral margins sub- 

 parallel, without dorsopleural carinae, scutellum not striate on posterior 

 portion. Forewings brachypterous, in rest position attaining base of 

 tergum VI, without a membrane, svirface strongly coriaceous with 

 venation obscured, with a few elevated rugosities near middle of wing. 

 Male genitalia much as in ^S*. brevis (Walker) (fig. 1 32), pygofer obliquely 

 truncate apically, thickly beset with small microsetae; plates extending 

 almost as far posteriorly as pygofer apex, separate throughout their 

 length ; styles as in brevis (Walker) ; aedeagus with shaft narrow in 

 lateral aspect, with a slight convexity near midlength of dorsal margin, 

 with an unpaired retrorse process near midlength of ventral margin, 

 without an anteapical constriction in shaft in posteroventral aspect; 

 paraphyses closely associated with aedeagal shaft basally. Color of 

 anterior dorsum and forewings dull brown, abdomen and legs black. 



Holotype male and one additional male, Macas, Oriente, Ecuador 

 (J. B. Rorer), July (USNM). 



This species differs from both S. brevis (Walker) and S. acutalis Sig- 

 noret in the much narrower aedeagal shaft and in the unpaired ventral 

 shaft process. It is named in honor of Dr. Janusz Nast of the Polish 

 Academy of Sciences, who has been extremely cooperative in making 

 available specimens from his institution, and in a number of other ways. 



31. Genus OCHROSTACTA Stal 



Figures 135, 136 



Ochrostacta StM, I869a:61. Type-species [Tettigonia] diadema Burmeister, by 



subsequent designation of Kirkaldy, 1907d:88. 

 Andamarca'M.tWcha.v, 1926a:336. Type-species: Tettigonia physocephala Signoret, 

 by original designation and monotypy. New synonymy. 



Length 9-12.5 mm. 



Head strongly produced, anterior margin rounded to face, ocelli 

 located before line between anterior angles of eyes, each about equi- 

 distant between adjacent eye angle and median line, crown inflated, 

 surface varying interspecifically from glabrous to very coarsely pitted 

 and with anterolateral projections, without an M -shaped elevation 

 bordering posterior margin, without a longitudinal carina laterad of 

 each ocellus, without setae, lateral clypeal sutures extending onto 

 crown or not, not attaining ocelli when present; antennal ledges not 

 foveate, in lateral aspect carinate dorsally, anterior margins steeply 

 declivous; clypeus convex or flattened, muscle impressions distinct or 

 completely absent, transclypeal suture distinct or obscure; face not 

 pubescent; clypellus not produced, its contour continuing profile of 

 clypeus. 



