CICADELLINAE : PART I. PROCONIINI 217 



between anterior eye angles, each equidistant from latter and median 

 line, with a slight M -shaped elevation bordering posterior margin, 

 with a partial median fovea extending from posterior margin anteriorly 

 about half length of crown. Thorax with posterior portion of scutellum 

 weakly transversely striate. Forewings hyaline, not suffused with amber, 

 claval veins separate posteriorly. Hindlegs with length of first tarsomere 

 greater than combined length of second and third. Male pygofer in 

 lateral aspect strongly produced and with posterior margin broadly 

 rounded, with numerous evenly dispersed microsetae over most of 

 surface and with a few interspersed macrosetae, ventral process very 

 long and slender, acute apically, extending as far posteriorly as posterior 

 pygofer margin; plates very short, separate throughout their length, 

 each triangular, sharply rounded at apex, with a number of microsetae 

 located mostly along mesal and lateral margins; style short, extending 

 farther posteriorly than apex of connective, with a weak preapical 

 lobe, apex narrowly rounded; connective shallowly U-shaped, the arms 

 moderately divergent, with a median carina, aedeagus asymmetrical, 

 with a large dorsal process bearing a pair of much smaller processes 

 near its apex, and with a pair of ventral shaft processes which are 

 asymmetrical in form and location; paraphyses absent. Other struc- 

 tural characters as in generic description. Female unknown. Color of 

 anterior dorsum tan (type) to black, with or without (type) a median 

 dull yellow spot on crown; face yellow (type) or gray; thoracic venter 

 and pleura tan (type) or gray. 



Holotype inale, Maroni River, French Guiana, on indefinite loan 

 to USNM from NCS; one additional male. New River, British Guiana 

 (BM) and a female from French Guiana (ZIMH). 



This species is closely related to D. despecta Melichar, but differs in 

 its lack of spots on crown and pronotum, in the shape of the con- 

 nective, and especially in the form of the pygofer and the length of the 

 pygofer processes, both of which are longer than in D. despecta. 



Dichrophleps truncata, new species 

 Figure 201 



Length of male 14.0 mm. Head with crown more broadly rounded 

 anteriorly in dorsal aspect than in D. tenebrosa, new species, ocelli each 

 slightly closer to adjacent anterior eye angle than to median line. Fore- 

 wings hyaline suffused with amber, claval vein with posterior fork occur- 

 ring more basally than in tenebrosa, and giving off a few supernumerary 

 crossveins which extend mesally and do not attain cormnissural margin. 

 Hindlegs with femoral setal formula 2:1:1, first tarsomere with length 

 greater than combined length of second and third. Male pygofer in 



260-649—68 15 



