Angucephala freytagi, Gonçalves & Takiya & Mejdalani, 2015

Gonçalves, Clayton Corrêa, Takiya, Daniela Maeda & Mejdalani, Gabriel, 2015, Description of a second species of Angucephala DeLong & Freytag (Hemiptera: Cicadellidae: Iassinae: Gyponini), Revista Brasileira de Entomologia (Rev. Bras. Entomol.) 59 (4), pp. 285-289 : 288-289

Angucephala freytagi sp. nov.

( Figs. 1–9 , 18–20 )

Diagnosis: Male sternite VIII ( Fig. 2 ) posterior margin mesally emarginate; pygofer ( Fig.3 ) with ventrobasal lobe and apex broadly rounded; styles ( Fig. 5 ), in lateral view, with apex foot-like, with dorsal pointed toe and angled ventral heel; aedeagal shaft ( Fig. 7 ), in lateral view, broad.

Description: Male: total length 13.2 mm.

Male terminalia: Sternite VIII ( Fig. 2 ) posterior margin with a median emargination, forming two small lobes. Pygofer lobes

( Fig. 3 ) with ventral margin with a conspicuous rounded lobe at basal half; inner surface with finger-shaped process arising dorsally, near base of anal tube, extending ventrally; pygofer apex broadly rounded. Valve laterally fused to pygofer, approximately three times wider than long; posterior margin with a slight median reentrance. Subgenital plates ( Figs. 3, 4 ) less sclerotized medially; apex rounded, without setae. Connective ( Fig. 6 ) about one-fourth of the length of style apophysis. Styles ( Figs.5, 6 ) elongate; with tuft of setae at median third of outer lateral margin; preapical portion, after ventral tooth, short, apex, in lateral view, foot-like, with dorsal pointed toe and angled ventral heel. Aedeagus ( Figs. 7–9 ) with shaft, in lateral view, broad; apical lobed processes subquadrate with ventral margin serrated.

Female: unknown.

Etymology: This species is named after Dr. Paul H. Freytag (Entomology Department, University of Kentucky) in recognition of his great contributions to leafhopper taxonomy.

Holotype: ECUADOR: Napo: Yanayacu Biological Station, 5 km SW Cosanga, 2100 mslm, Jan 19 2009, S0 ◦ 35.967 Ɩ \ W78 ◦ 53.419 Ɩ, Hg vapor light, Geert Goemans , DNA voucher DZRJ ENT 2420 , male ( EPCN).

Notes: Angucephala freytagi sp. nov. is very similar to A. mellana . However, the new species may be differentiated from the latter by the following characteristics: (1) posterior margin of male sternite VIII with a median emargination ( Fig. 2 ), in A. mellana the posterior margin is broadly rounded ( Fig. 11 ); (2) male pygofer, in lateral view, slightly narrowed at apical third and apex broadly rounded ( Fig. 3 ), in A. mellana the apical third is narrowed and apex is acute ( Fig. 12 ); (3) style with apical portion short and apex foot-shaped ( Figs. 5, 6 ), in A. mellana the apical portion is long and apex pointed ( Figs. 14, 15 ); and (4) shaft of aedeagus, in lateral view, broad ( Fig. 7 ), in A. mellana narrow ( Fig. 16 ).

Figures

Figs. 1–9. Angucephala freytagi sp. nov., male holotype.1. Right forewing.2. Sternite VIII, ventral view.3. Pygofer,anal tube, valve, and subgenital plate, lateral view.4. Right subgenital plate, ventral view. 5. Right style, lateral view.6. Connective and styles, dorsal view. 7. Aedeagus, lateral view.8. Aedeagus, caudal view. 9. Aedeagus, dorsal view.

Figs. 18–23. Angucephala freytagi sp. nov., male holotype. 18. Habitus dorsal. 19. Habitus lateral. 20. Head, frontal view. Angucephala mellana DeLong & Freytag, 1975, male holotype. 21. Habitus dorsal. 22. Habitus lateral. 23. Head, frontal view.

Figs. 10–17. Angucephala mellana DeLong & Freytag, 1975, male holotype. 10. Right forewing. 11. Sternite VIII, ventral view. 12. Pygofer, valve, and subgenital plate, lateral view. 13. Right subgenital plate, ventral view.14. Right style, lateral view. 15. Connective and style, dorsal view. 16. Aedeagus, lateral view. 17. Aedeagus, caudal view.