Rubacea indivisa, Gonçalves & Prando & Domahovski, 2025

Gonçalves, Clayton Corrêa, Prando, Jádila Santos & Domahovski, Alexandre Cruz, 2025, Review of the genus Tenuacia DeLong (Insecta: Hemiptera: Cicadellidae: Gyponini), including two new species and Rubacea DeLong raised to generic status, Zootaxa 5604 (3), pp. 361-372 : 366

Rubacea indivisa sp. nov.

( Figs 1–12 )

Diagnosis. Face ( Fig. 3 ) almost completely black. Male sternite VIII ( Fig. 5 ) with lateroventral margins expanded, forming a lateral lobe on middle third. Male pygofer ( Fig. 6 ) with dorsal margin slightly excavated. Subgenital plate ( Fig. 8 ) obovate, expanded apically. Aedeagus ( Figs 11, 12 ) shaft with subapical processes unbranched, elongated and slender, directed dorsally with apices acute.

Total length. Males, 9.0–9.1 mm (n = 2).

Description. Frons ( Fig. 3 ) with irregular striae. Other external morphological characters as in generic description.

Coloration. Face ( Fig. 3 ) black, anterior margin of crown, antennal pits, and antennal ledges, yellow; gena with subtriangular macula, below eye, adjacent to margin, yellow. Pronotum ( Fig. 1 ) with brown punctures. Other coloration characters as in generic description.

Male terminalia. Sternite VIII, in ventral view ( Fig. 5 ), approximately 1.1x wider than long; lateroventral margins expanded, forming a lateral lobe on middle third; posterior margin slightly emarginated. Valve, in ventral view, with posterior margin rounded. Pygofer, in lateral view ( Fig. 6 ), approximately 2.6x longer than high; basidorsal process elongated and slender, directed ventrally; dorsal margin slightly excavated; basiventral margin broadly rounded; apex strongly tapered, but rounded; in dorsal view ( Fig. 7 ) with lateral lobes slightly internally curved preapically. Subgenital plates, in lateral view ( Fig. 6 ), extending to apical half of pygofer; obovate in ventral view ( Fig. 8 ), expanded apically; approximately 3.5x longer than maximum width; lateral margins slightly rounded; dorsal and outer lateral surface with hair-like setae throughout apical two-thirds; apex rounded. Connective, in dorsal view ( Fig. 9 ), about one-third as long as style. Style in lateral view ( Fig. 10 ), with blade slightly sinuous at apical portion; apex rounded. Aedeagus ( Figs 11, 12 ) shaft with subapical processes asymmetrical, elongated and slender, directed dorsally, left process one-third longer than the right process, apices acute.

Female. Unknown.

Etymology. The name of the species alludes to the processes of the aedeagus, which are undivided ( Figs 11, 12 ), unlike the processes of Rubacea rubera , which are bifid.

Material examined. Male holotype: “ Peru, Pasco Department,\ P.N. Yanachaga Chemillén ,\ Puesto de Control Huampal ,\ 1050m., 05.x.2002 \ 10°11’08”S, 075°34’25”W,\ D.M. Takiya ” “DNA voucher:\ Entomologia DZRJ\ ENT2422” ( MUSM) ; Paratype: 1♂, “ Peru, Cuzco, Estrada 30C , \ 26Km W Quincemil \ 23.viii.2012 (light) \ 13º21’18”S 70º53’22”W \ 985m R.R. Cavichioli ” ( DZUP) .

Notes. Rubacea indivisa sp. nov. is very similar to R. rubacea . However, the new species differs mainly in having non-bifurcated subapical processes of the aedeagus ( Figs 11, 12 ), while in R. rubacea the subapical process of the left side is bifid apically ( Figs 16–21 ).

Figures

FIGURES 1–12. Rubacea indivisa sp. nov., male holotype. 1, habitus, dorsal view. 2, habitus, lateral view. 3, head, ventral view. 4, forewing. 5, sternite VIII, ventral view. 6, pygofer, valve and subgenital plate, lateral view. 7, right pygofer lobe, dorsal view. 8, subgenital plate, ventral view. 9, connective and style, dorsal view. 10, style, lateral view. 11, aedeagus, lateral view. 12, aedeagus, caudal view. Scale bars: 1, 2, 4 = 2 mm; 3 = 1 mm; 5–12 = 0.5 mm.

FIGURES 13–24. 13–21, Rubacea rubera (DeLong, 1977) comb. nov., male holotype (OSU). 13, habitus, dorsal view. 14, habitus, lateral view. 15, labels. 16, aedeagus, lateral view. 17, aedeagus, posterior view. 18, enlarged view of the apical portion. 19–21, Rubacea rubera (DeLong, 1977) comb. nov., male specimen from Cuzco, Peru (DZUP), 19, aedeagus, lateral view. 20, aedeagus, posterior view. 21, enlarged view of the apical portion. 22–24, Tenuacia macera DeLong, 1977, male paratype (OSU). 22, habitus, dorsal view. 23, habitus, lateral view. 24, labels. Scale bars = 2 mm.