CICADELLINAE : PART I. PROCONIINI 57 



7. Genus YUNGA Melichar 



Figures 44-46 



Yunga Melichar, 1924a:208. Type-species: Aulacizes coriacea StSl, by original 

 designation. 



Length of male 11.5-16.5 mm. 



Head moderately triangularly produced, its median length about 

 two-thirds interocular width, with anterior margin elevated and 

 rounded in dorsal aspect, sharply carinate between crown and face, 

 ocelli located slightly before a line between anterior angles of eyes, 

 each about equidistant between adjacent eye angle and median line 

 of crown; with or without a distinct median M -shaped elevation 

 bordering posterior margin, without a longitudinal carina laterad 

 of each ocellus; with a broad shallow median fovea which is widest 

 opposite ocelli; antennal ledges with a longitudinal fovea, in lateral 

 aspect carinate dorsally and with anterior margin abruptly declivous 

 (exception: T. coriacea (St&l)); clypeus depressed medially, with 

 muscle impressions distinct or not; lower portion of face pubescent; 

 clypellus protuberant, the contour of its lower portion at right angle 

 to profile of clypeus. 



Thorax with pronotal width greater than transocular width of head, 

 lateral margins convergent anteriorly, disc rugose or rugose and punc- 

 tate, posterior margin concave, dorsopleural carinae complete, oblique 

 and very slightly bisinuate; scutellum transversely striate on posterior 

 portion. Forewing with only inner apical cell membranous, veins 

 elevated and distinct, texture coriaceous, with clavus and occasionally 

 basal portion of corium punctate, claval veins parallel, occasionally 

 with supernumerary claval crossveins, with an apical plexus of veins 

 in corium and with supernumerary apical veins to costal margin. 

 Hindwing with apex extending almost to apex of forewing, vein 

 R2+3 entire. Hindlegs with femoral setal formula 2:0:0; first tarsomere 

 with length equal to or less than combined length of second and third 

 tarsomeres. 



Male genitalia: Pygofer moderately produced, posterior margin 

 variable interspecifically in form, with numerous dispersed microsetae 

 at least on posterior and posteroventral portions, without processes but 

 with a pair of sclerotized lobes in conjunctiva IX-X. Plates fused al- 

 most throughout their length, extending about as far posteriorly as apex 

 of pygofer, each subtriangular, with numerous dispersed microsetae. 

 Style extending slightly farther posteriorly than apex of connective, 

 without a preapical lobe, the apex narrowly rounded or acute. Connec- 

 tive Y-shaped, the arms short and not widely divergent, stem broadened 

 posteriorly, not keeled. Aedeagus elongate, symmetrical, somewhat 

 variable in form, with or without paired processes on shaft. Paraphyses 



