Erythrogonia hertha Medler, 1963

Carvalho, Rachel A. & Mejdalani, Gabriel, 2014, Remarkable morphological features of taxonomic interest in the female genitalia of five Erythrogonia species (Hemiptera: Cicadomorpha: Cicadellidae), Zootaxa 3872 (3), pp. 275-290 : 282

Erythrogonia hertha Medler, 1963

( Figs 33–45 )

Length: female 7.7–7.8 mm (n = 2), male 7.6–8.1 mm (n = 2).

Diagnosis. Head and pronotum dark brown to black, mesonotum red; crown with triangular pale yellow macula contiguous with oval median macula on pronotum ( Fig. 33 ). Forewings ( Fig. 33 ) red with rounded pale yellow macula basally on clavus and corium and with oblique white macula near claval apex; costal margin and basal macula bordered with dark brown to black; membrane dark brown. Male genitalia with styles longer than half length of subgenital plates; aedeagal shaft without processes; dorsal apodemes of aedeagus developed into elongate processes directed ventrally and then posteriorly, as long as pygofer. Female sternite VII ( Fig. 35 ) longer than wide, posterior margin broadly emarginate; sternite VIII ( Figs 34 and 35 ) with pair of striated sclerotized areas; first valvifers ( Fig. 36 ) without processes or additional sclerites; ovipositor valvulae without projections or additional sclerites.

Female genitalia. Sternite VII ( Fig. 35 ) longer than wide, elongate, subrectangular; posterior margin broadly emarginate and with slight notch medially, with pair of small lateral projections; lateral margins slightly concave medially; ventral surface with few irregular striae, without setae; dorsal (inner) surface with pair of transverse elevations along posterior margin, delimiting median sulcus. Sternite VIII ( Figs 34 and 35 ), in dorsal view, with pair of striated sclerotized areas above bases of ovipositor valvulae. Pygofer well produced posteriorly; posterior margin narrowly rounded; macrosetae mostly on posterior half and extending anteriorly along ventral portion. First valvifers ( Fig. 36 ) without processes or additional sclerites. First pair of valvulae ( Fig. 36 ) with basal portion slightly curved dorsally and without projections; sculptured areas ( Figs 37–40 ) as in E. phoenicea and E. calva ; dorsal margin approximately rectilinear after basal curvature; ventral margin convex medially; apex acute ( Fig. 39 ); ventral interlocking device ( Fig. 36 , VID) as in E. phoenicea and E. calva . Second pair of valvulae ( Fig. 41 ) broadened beyond basal curvature, narrowing towards narrowly rounded apex ( Fig. 45 ); ventral margin approximately rectilinear; preapical prominence ( Fig. 45 ) inconspicuous; with approximately 26 teeth; teeth ( Figs 42–44 ), denticles ( Figs 43–45 ), and ducts ( Figs 43–45 ) as in E. phoenicea and E. calva ; dorsal dentate apical portion smaller than ventral one ( Fig. 45 ); valvulae without additional sclerites. Gonoplacs as in E. phoenicea and E. calva .

Distribution. Brazil (states of Espírito Santo, Rio de Janeiro, São Paulo, and Santa Catarina).

Material examined. Brazil: state of Rio de Janeiro: one male and two females ( MNRJ); state of São Paulo: one female and one male ( MNRJ).

Figures

FIGURES 33 – 45. Erythrogonia hertha Medler. Female body (33) and genitalia (34 – 45): apex of abdomen in (34) dorsal and (35) ventral views; (36) first valvifer and valvula in lateral view; (37) basidorsal, (38) apicodorsal, (39) apical, and (40) ventral sculptured areas in detail; (41) second valvula, lateral view; (42) basal, (43) median, and (44) apical teeth and denticles in detail; (45) preapical prominence and apex in detail. PPR = preapical prominence; VID = ventral interlocking device. Only clearly visible portions of structures were colored in figures 34 and 35.