Geitogonalia piei, Cavichioli & Rendón-Mera & Domahovski & Mejdalani, 2018

Cavichioli, Rodney R., Rendón-Mera, Diana I., Domahovski, Alexandre C. & Mejdalani, Gabriel, 2018, Three new Brazilian species of the sharpshooter genus Geitogonalia Young (Hemiptera: Cicadellidae: Cicadellini), Zootaxa 4531 (4), pp. 578-588 : 582-584

Geitogonalia piei sp. nov.

( Figs 15–21 )

Diagnosis. Aedeagus ( Figs 20, 21 ) with preatrial process directed anteriorly; shaft very short, with pair of apical long and thick horn-shaped processes curved dorsally, longer than atrium and shaft together.

Measurement (in mm; 1 ♂). Length of body 7.5.

Male. Coloration. Anterior dorsum (crown, pronotum, and mesonotum) yellowish-green ( Figs 15, 16 ). Crown with narrow black stripe along posterior margin. Pronotum with orange transverse band posteriorly. Mesoscutellum yellow posteriorly. Forewing ( Figs 15, 16 ) yellowish on basal fifth; corium and clavus green; membrane dark brown; veins mostly yellow to greenish-yellow; apex and appendix dark brown. Face ( Fig. 17 ) pale yellow; apical segment of rostrum almost black. Thorax lateral and ventral portions pale yellowish-green. Legs pale yellow. Abdomen black.

Structure. Head ( Figs 15–17 ) moderately produced anteriorly, median length of crown approximately 1/2 of interocular width and 3/10 of transocular width; coronal suture distinct along its posterior half. Other features as in G. buccina sp. nov.

Male genitalia. Pygofer ( Fig. 18 ), in lateral view, well produced posteriorly, posterior margin subquadrangular with lateral angles rounded; without processes; macrosetae distributed on posterior third and near dorsal margin; long and thin setae present ventrally and medially on anterior half. Valve ( Fig. 19 ), in ventral view, with lateral margins rounded, strongly constricted medially only on posterior margin. Subgenital plate ( Fig. 19 ), in ventral view, triangular, not fused to its counterpart basally, outer lateral margin basally almost parallel to inner lateral margin, then narrowing gradually towards apex, with uniseriate row of macrosetae intercalated with many and very long setae; in lateral view, not extending posteriorly as far as pygofer apex. Connective, style, and paraphyses resembling those of G. tetracorni sp. nov. Aedeagus ( Figs 20, 21 ) symmetrical; preatrial process directed anteriorly; dorsal apodeme about 2/3 as long as rest of aedeagus, sinuous, base wide, narrowing apically, apex curved anteriorly; shaft very short, with pair of apical long and thick horn-shaped processes curved dorsally, longer than atrium and shaft together.

Female unknown.

Etymology. The new species is named in honor of Prof. Dr. Márcio Roberto Pie of the Departamento de Zoologia, Universidade Federal do Paraná, who collected the holotype.

Material examined. Holotype Ƌ: Southern Brazil, state of Paraná: “Brasil, Paraná / PE [Parque Estadual] do Marumbi / 48°55’W 25°26’S / III/2001 Pie M. leg.” (DZUP).

Remarks. The first author examined the connective, style, and paraphyses of the only known male of this new species, which are very similar to those of G. tetracorni sp. nov. ( Figs 27, 28 ) and G. buccina sp. nov. ( Figs 6, 7 ). However, due to an accident, they were lost after the initial examination and, unfortunately, could not be illustrated. This species is similar in color to the other two new species, but is easily distinguished from them by the short aedeagus ( Figs 20, 21 ) and the absence of the black stripe on the pronotum ( Fig. 15 ).

Figures

FIGURES 15–21. Geitogonalia piei sp. nov., male holotype: 15–16. Habitus, dorsal and lateral view, respectively. 17. Head, frontal view. 18. Pygofer, lateral view. 19. Valve and subgenital plate, ventral view. 20. Aedeagus, lateral view. 21. Aedeagus, ventral view. Scale bars in mm.

FIGURES 22–30. Geitogonalia tetracorni sp. nov., male holotype: 22–23. Habitus, dorsal and lateral view, respectively. 24. Head, frontal view. 25. Pygofer, lateral view. 26. Valve and subgenital plate, ventral view. 27. Connective and style, dorsal view. 28. Paraphyses, dorsal view. 29. Aedeagus, lateral view. 30. Aedeagus, posterior view. Scale bars in mm.

FIGURES 1–9. Geitogonalia buccina sp. nov., male holotype: 1–2. Habitus, dorsal and lateral view, respectively. 3. Head, frontal view. 4. Pygofer, lateral view. 5. Valve and subgenital plate, ventral view. 6. Connective and style, dorsal view. 7. Paraphyses, dorsal view. 8. Aedeagus, lateral view. 9. Aedeagus, ventral view. Scale bars in mm.