Polana (Polana) torta Domahovski, 2025, sp. nov.
Creators: name: Domahovski, Alexandre Cruz
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Polana
Polana torta

description: Polana (Polana) torta sp. nov.
(Figs 1I, J, 9)
Diagnosis. Style (Fig. 9J), in lateral view, blade foot-shaped; ventral margin produced forming a serrated rounded lobe. Aedeagus (Fig. 9K, L) with pair of basolateral processes as long as shaft, wider on basal fourth; shaft without processes apex weakly sclerotized and strongly recurved to left side.
Measurements. Holotype male: total length 7.4 mm.
Coloration. Head and thorax (Figs 1I, J, 8A–D) yellowish-brown. Crown (Fig. 9A) coronal suture black. Face (Fig. 9B) without maculae. Pronotum (Fig. 9A) without maculae. Proepimeron (Fig. 9C) with pronotal carina yellow and a small black spot near posterior angle of eye. Mesonotum (Fig. 9A) with pair of small yellow spot on lateral angle. Forewing (Figs 1I, J, 9D) yellowish-brown smoky, brown stripe extending from apex of clavus to R1 vein; black markings on base of clavus, cross veins of inner discal cell, apex of A1 and Pcu, and cross veins of apical cells.
Description. Similar to the description of Polana inflexa sp. nov. except:
Head (Fig. 9B), in ventral view, clypeus 1.1x longer than wide, lateral margins approximately parallel. First tarsomere not examined (lost).
Male terminalia. Sternite VIII (Fig. 9E) rectangular, 1.6x longer than wide; posterior margin straight. Valve (Fig. 9F) 2.5x wider than long; integument thickening present only on dorsal margin, posterior margin slightly rounded. Pygofer (Fig. 9G) 1.6x longer than high; basodorsal processes without subapical tooth; macrosetae dispersed on dorsoapical quadrant; ventral margin straight; apex rounded. Subgenital plate (Fig. 9G) extending to apical third of pygofer; in ventral view (Fig. 9H) ovate, outer margin rounded with short setae on apical half; apex rounded. Connective (Fig. 9I) Y-shaped, almost extending to apex of style; anteroventral margin with a median protrusion extending anterad; stem wider apically; dorsal keel small. Style (Fig. 9I), in dorsal view, outer lobe reduced; in lateral view (Fig. 9J) blade foot-shaped; ventral margin produced forming a serrated rounded lobe; apex with small process curved dorsally. Aedeagus (Fig. 9K, L) with preatrium short; dorsal apodeme rounded; pair of basolateral processes as long as shaft, wider on basal fourth, apex acute; shaft without processes, uniformly curved; apex weakly sclerotized and strongly recurved to left side.
Female. Unknown.
Etymology. The new species name comes from the Latin word “ tortus ” meaning twisted. It refers to the recurved apical portion of aedeagus.
Material examined. Holotype male, COSTA RICA: “ Costa Rica - Estácion \ Biológica La Sirena - \ PN Corcovado - \ 21m 8º28’48”N \ 83º35’22”W \ 11 a 14/II/2011 \ RR Cavichioli leg.” (DZUP).
Remarks. The new species is similar to Polana mala, due to the apically foot-shaped style and the aedeagus lacking processes on the shaft. However, P. torta sp. nov. bears longer subgenital plates and the blade of the style is longer and more robust.
description: Published as part of Domahovski, Alexandre Cruz, 2025, Five new species of Polana (Polana) (Hemiptera: Cicadellidae: Gyponini) from Brazil and Costa Rica, and new combinations in the genus, pp. 179-204 in Zootaxa 5584 (2) on pages 193-194, DOI: 10.11646/zootaxa.5584.2.2, http://zenodo.org/record/14830758