Rubacea indivisa, Gonçalves & Prando & Domahovski, 2025

Rubacea indivisa sp. nov.

( Figs 1–12 View FIGURES 1–12 )

Diagnosis. Face ( Fig. 3 View FIGURES 1–12 ) almost completely black. Male sternite VIII ( Fig. 5 View FIGURES 1–12 ) with lateroventral margins expanded, forming a lateral lobe on middle third. Male pygofer ( Fig. 6 View FIGURES 1–12 ) with dorsal margin slightly excavated. Subgenital plate ( Fig. 8 View FIGURES 1–12 ) obovate, expanded apically. Aedeagus ( Figs 11, 12 View FIGURES 1–12 ) 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 View FIGURES 1–12 ) with irregular striae. Other external morphological characters as in generic description.

Coloration. Face ( Fig. 3 View FIGURES 1–12 ) black, anterior margin of crown, antennal pits, and antennal ledges, yellow; gena with subtriangular macula, below eye, adjacent to margin, yellow. Pronotum ( Fig. 1 View FIGURES 1–12 ) with brown punctures. Other coloration characters as in generic description.

Male terminalia. Sternite VIII, in ventral view ( Fig. 5 View FIGURES 1–12 ), 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 View FIGURES 1–12 ), 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 View FIGURES 1–12 ) with lateral lobes slightly internally curved preapically. Subgenital plates, in lateral view ( Fig. 6 View FIGURES 1–12 ), extending to apical half of pygofer; obovate in ventral view ( Fig. 8 View FIGURES 1–12 ), 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 View FIGURES 1–12 ), about one-third as long as style. Style in lateral view ( Fig. 10 View FIGURES 1–12 ), with blade slightly sinuous at apical portion; apex rounded. Aedeagus ( Figs 11, 12 View FIGURES 1–12 ) 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 View FIGURES 1–12 ), 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) GoogleMaps ; Paratype: 1♂, “ Peru, Cuzco, Estrada 30C , \ 26Km W Quincemil \ 23.viii.2012 (light) \ 13º21’18”S 70º53’22”W \ 985m R.R. Cavichioli ” ( DZUP) GoogleMaps .

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 View FIGURES 1–12 ), while in R. rubacea the subapical process of the left side is bifid apically ( Figs 16–21 View FIGURES 13–24 ).