Tiodus sakakibarai Paladini & Cavichioli, 2017

Paladini, Andressa & Cavichioli, Rodney Ramiro, 2017, A new species of Tiodus (Hemiptera, Cercopidae) with a key to species of the genus, Zootaxa 4281 (1), pp. 242-245 : 243-244

Tiodus sakakibarai Paladini & Cavichioli sp. nov.

( Figures 1–8 )

Measurements (mm). Total length, 11.6 mm; length of pronotum, 2.3 mm; width of pronotum, 4.0 mm; length of tegmina, 8.3 mm; width of tegmina, 2.2 mm.

Diagnosis. Postclypeus orange, moderately inflated, slightly angulated in profile; tegmina black with two reddish orange transverse transcommissural bands; aedeagus robust, not bifid.

Description. Head: black ( Figs 1–2 ); compound eyes brown, rounded and arranged transversely; vertex smooth and rectangular, lacking median carina; ocelli brown, closer to each other than to compound eyes; tylus smooth and rectangular, lacking median carina; antennae black with scape orange, pedicel setose, basal body of flagellum subcylindrical with one arista as long as flagellum; postclypeus orange, inflated, slightly angulated (forming an obtuse angle) in profile, with one longitudinal carina strongly marked and produced; rostrum extending to mesocoxae. Thorax: reddish orange with basisternum black; pronotum black with anterolateral margins reddish orange, hexagonal, lacking median carina, anterior margin straight, anterolateral margins straight, posterolateral margins slightly sinuous, posterior margin grooved; scutellum black with a light central concavity, lacking horizontal grooves; tegmina black, each with two reddish orange transverse transcommissural bands, one between basal and median third and another on apical third, apical reticulation well developed; hindwings hyaline with orange brown venation, vein Cu1 not thickened at base; legs orange with tibiae and tarsi black; metathoracic tibiae each with two lateral spines (basal spine equal in size to spines of apical crown; apical spine larger than spines of apical crown); apical crown of spines on tibia consisting of two rows; basitarsi each with one row of spines covered by long setae; subungueal process absent. Abdomen: pale to brownish-orange.

Male genitalia. Genital chamber with finger-like process on posterior margin of pygofer ( Fig. 3 ); subgenital plates long and wide with rounded apex, free for almost entire length ( Fig. 4 ); parameres long and slender, with finger-like apex and rounded process at apical third, without spine or spine-like processes, dorsal margin rounded ( Figs 5–6 ); aedeagus robust with shaft straight, slightly enlarged at median third, shaft with processes: single dorsal process located on the beginning of apical third; bifid process on apex of shaft, finger-like in lateral view and Cshaped in dorsal view; and two flap-like lateral processes located on median third. ( Figs 7–8 ).

Female. Unknown.

Remarks. The color pattern of this species is unique in the genus. The male genitalia differ from the other species by the absence of a paramere spine and the entire (not bifid) aedeagus shaft. The postclypeus shape and angle; the general shape of the aedeagus, principally the single process on the apical third and the two processes on the apex; and the elongated parameres with a thinner apex are characters that justify placement of this species in the genus Tiodus .

Etymology. The species is named in honor of Dr. Albino Morimasa Sakakibara for his great contributions to the knowledge of the Auchenorrhyncha.

Examined material: Holotype: Peru, Puno 20 Km SW de San Gaban 13.612S 70.446W, 1221m, 21.VIII.2012, Cavichioli, Melo, Rosa & Santos leg. [ MUSM].

Figures

FIGURE 1 – 8. Tiodus sakakibarai n. sp. 1. Holotype habitus, dorsal view. 2. Holotype habitus, lateral view. 3. Male genital chamber, lateral view. 4. Subgenital plates, ventral view. 5. Paramere, lateral view. 6. Paramere, dorsal view. 7. Aedeagus, lateral view. 8. Aedeagus, dorsal view.