Exogonia Melichar, 1926

Mauro-Barr, T. T., Carvalho, R. A., Felix, M. & Mejdalani, G., 2009, Taxonomy of the Neotropical leafhopper genus Exogonia with description of seven new Brazilian species (Hemiptera: Cicadellidae: Cicadellini), Zootaxa 2046 (1), pp. 43-68 : 44

Genus Exogonia Melichar, 1926

( Figs 1–80 )

Type-species: Tettigonia assimilis Signoret , by subsequent designation of China (1938: 183).

Diagnosis. Leafhoppers with anterior margin of crown varying from rounded to narrowly rounded ( Figs 2 , 59 ), crown with epicranial, temporal, and frontogenal sutures usually visible. Pronotum generally with width approximately equal to transocular width; lateral margins convergent anteriorly ( Fig. 2 ); dorsopleural carinae complete and oblique; posterior pronotal margin concave medially. Male pygofer strongly produced posteriorly, apical margin convex, usually with pair of ventral processes on apical portion bearing numerous setae ( Figs 3 , 11 ); subgenital plates triangular ( Fig. 4 ); stalk of connective with median keel ( Fig. 72 ); aedeagus expanded apically ( Fig. 6 ); paraphyses with two pairs of rami ( Fig. 8 ), one directed anteriorly and other posteriorly (except in E. leucampix , with single pair of rami). Second valvulae of ovipositor ( Fig. 19 ) with dorsal margin interrupted abruptly on basal portion.

Figures

FIGURES 1–8. Exogonia capixaba sp. nov., male holotype: (1) body, lateral view; (2) head, pronotum, and mesonotum, dorsal view; (3) pygofer, lateral view (illustrated mounted on a temporary slide with glycerin); (4) subgenital plate, ventral view; (5) connective and style, dorsal view; (6) aedeagus and basal portion of gonoduct, lateral view; (7) paraphyses, lateral view; (8) paraphyses, dorsal view.

FIGURES 9–16. Exogonia flavomaculata sp. nov.: (9) body of male holotype, lateral view; (10) head, pronotum, and mesonotum of male paratype, dorsal view; (11-16) male holotype: (11) pygofer, valve, and subgenital plate, lateral view; (12) subgenital plate, ventral view; (13) connective and style, dorsal view; (14) aedeagus and basal portion of gonoduct, lateral view; (15) paraphyses, lateral view; (16) paraphyses, dorsal view.

FIGURES 17–19. Exogonia flavomaculata sp. nov., female paratype: (17) sternite VII, ventral view; (18) pygofer, lateral view; (19) second valvula, lateral view (the arrow indicates the truncate basal limit).

FIGURES 20–27. Exogonia longinqua sp. nov.: (20, 21) male paratype: (20) body, lateral view; (21) head, pronotum, and mesonotum, dorsal view; (22-27) male holotype: (22) pygofer, lateral view; (23) subgenital plate, ventral view; (24) connective and style, dorsal view; (25) aedeagus and basal portion of gonoduct, lateral view; (26) paraphyses, lateral view; (27) paraphyses, dorsal view.

FIGURES 28–35. Exogonia luteovittata sp. nov.: (28) body of female paratype, lateral view; (29) head, pronotum, and mesonotum of male paratype, dorsal view; (30–35) male holotype: (30) pygofer, lateral view; (31) subgenital plate, ventral view; (32) connective and style, dorsal view; (33) aedeagus and basal portion of gonoduct, lateral view; (34) paraphyses, lateral view; (35) paraphyses, dorsal view.

FIGURES 36–38. Exogonia luteovittata sp. nov., female paratype: (36) sternite VII, ventral view; (37) pygofer, lateral view; (38) second valvula, lateral view.

FIGURES 39–46. Exogonia paranaensis sp. nov., male holotype: (39) body, lateral view; (40) head, pronotum, and mesonotum, dorsal view; (41) pygofer and subgenital plate, lateral view; (42) subgenital plate, ventral view; (43) connective and style, dorsal view; (44) aedeagus and basal portion of gonoduct, lateral view; (45) paraphyses, lateral view; (46) paraphyses, dorsal view.

FIGURES 47–49. Exogonia paranaensis sp. nov., female paratype: (47) sternite VII, ventral view; (48) pygofer, lateral view; (49) second valvula, lateral view.

FIGURES 50–57. Exogonia paulista sp. nov., male holotype: (50) body, lateral view; (51) head, pronotum, and mesonotum, dorsal view; (52) pygofer, lateral view; (53) valve and subgenital plate, ventral view; (54) connective and style, dorsal view; (55) aedeagus and basal portion of gonoduct, lateral view; (56) paraphyses, lateral view; (57) paraphyses, dorsal view.

FIGURES 58–65. Exogonia una sp. nov., male holotype: (58) body, lateral view; (59) head, pronotum, and mesonotum, dorsal view; (60) pygofer, lateral view; (61) valve and subgenital plate, ventral view; (62) connective and style, dorsal view; (63) aedeagus and basal portion of gonoduct, lateral view; (64) paraphyses, lateral view; (65) paraphyses, dorsal view.

FIGURES 66–75. Exogonia hyalinosparsa (Melichar, 1932): (66) body, lateral view; (67-69) crown, pronotum, and mesonotum, dorsal view; (70-75) male genitalia: (70) pygofer, lateral view; (71) subgenital plate, ventral view; (72) connective and style, dorsal view; (73) aedeagus and basal portion of gonoduct, lateral view; (74) paraphyses, lateral view; (75) paraphyses, dorsal view. Specimens from Paraná State.

FIGURES 76–80. (76–79) Exogonia hyalinosparsa (Melichar, 1932), female genitalia: (76, 77) sternite VII, ventral view; (78) pygofer, lateral view; (79) second valvula, lateral view. (80) E. leucampix (Signoret, 1853), anterior dorsum.