CICADELLINAE : PART I. PROCONIINI 193 



Holotype male, Rancho Grande, near Maracay, Venezuela, July 8, 

 1946, in collection of the Bronx Zoo (posterior tarsi are missing from 

 the type) ; also a single female from Venezuela (MMB). 



This species is closely related to Phera maculiventris (Schmidt), from 

 which it may be distinguished by the characters mentioned in the key 

 and in the above description. 



43. Genus HOMALODISCA Stal 



Figures 180-190 

 Homalodisca StSJ, 1869a:63, Type-species: Cicada triquetra Fabricius, by sub- 

 sequent designation of Distant (I908b:80). 



Length 9.4-15.0 mm. 



Head strongly produced, its median length almost always equal to 

 or less than interocular width, and always less than transocular width, 

 anterior margin rounded in dorsal aspect, usually with a slight angle 

 at transition from crown to face, disc of crown flattened, with or with- 

 out an M -shaped elevation bordering posterior margin, with a pit 

 enclosed by the anterior angle of the M on each side, with an incom- 

 plete (complete in H. insolita (Walker)) narrow median fovea which 

 becomes broader and shallower anteriorly, disc with or without setae; 

 antennal ledges very slightly protuberant in dorsal aspect, each with a 

 shallow longitudinal depression, carinate dorsally in lateral aspect, 

 with anterior margin oblique; clypeus usually slightly flattened medi- 

 ally, occasionally depressed or convex, the dorsomedial clypeal area 

 glabrous or pubescent, not granulose (exception: H. insolita), muscle 

 impressions usually distinct ; other head characters as in Phera. 



Thorax with disc rugose and punctate (pitted in H. insolita), with or 

 without pubescence, in lateral aspect with an oblique dorsopleural 

 carina which is usually incomplete, not attaining posterior margin of 

 eye; proepimeron without ventral depressed region as in Phera; other 

 thoracic characters as in Phera. Forewing variable, from completely 

 opaque and with or without a membrane, to almost completely hyaline 

 and with a few coriaceous areas on corium near bases of anteapical 

 cells, species with hyaline wings often with one or more supernumerary 

 crossveins between veins M and Cui, other characters as in Phera. 

 Hindwing as in Phera. Legs with posterior femoral setal formula 2:0:0, 

 2:1:0 or 2:1:1; first posterior tarsomere with length rarely greater, 

 usually less than combined length of second and third tarsomeres, 

 other leg characters as in Phera. 



Male genitalia: Pygofer variable in form interspecifically, with 

 numerous dispersed microsetae and occasionally with few interspersed 

 macrosetae, usually with a process (often greatly reduced) arising on 



