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

description: Polana (Polana) sinopensis sp. nov.
(Figs 1G, H, 7, 8)
Diagnosis. Style (Fig. 7J), in lateral view, blade narrow, slightly widening subapically; ventral margin smooth. Aedeagus (Fig. 7K, L) with pair of basolateral processes widened medially, apex acute extending to apical third of shaft; shaft, approximately cylindrical, curved basally and straight distally, subapical portion expanded laterally; apical portion bifid, with each ramus bifurcate.
Measurements. Holotype male: total length 7.2 mm. Paratypes: males 7.0– 7.4 mm (n = 26); females 7.5–8.3 mm (n = 33).
Coloration. Head and thorax (Figs 1G, H, 7A–D) yellowish-brown. Crown (Fig. 7A) coronal suture black. Face (Fig. 7B) without maculae. Pronotum (Fig. 7A) with six black maculae near anterior margin. Proepimeron (Fig. 7C) with pronotal carina yellow. Mesonotum (Fig. 7A) lateral angles brown; two pairs of faint yellow spots, one on basolateral corner and one near scutoscutellar suture. Forewing (Figs 1G, H, 7D) yellowish-brown; veins weakly brown outlined, mostly on apical half; apex of clavus smoky, forming a faint brown stripe extending to subapical cells; black markings on base of clavus, cross veins of discal cells, apex of A1 and Pcu, and cross veins of apical cells.
Description. Similar to the description of Polana inflexa sp. nov. except: Head (Fig. 7B), in ventral view, clypeus slightly inflated, 1.3x wider than long at base, lateral margins sigmoid, strongly convergent apically. Forewing (Fig. 7D) M vein with segment after the divergence between R+M and before the cross vein m-cu1 more than 3x longer than the length of m-cu1.
Male terminalia. Sternite VIII (Fig. 7E) rectangular, 1.5x longer than wide; posterior margin slightly produced medially. Valve (Fig. 7F) 2.5x wider than long; integument thickening present only on anterior margin; posterior margin rounded. Pygofer (Fig. 7G) 1.7x longer than high; basodorsal processes with subapical tooth; macrosetae dispersed on posterodorsal quadrant; ventral margin rounded; apex truncated. Subgenital plate (Fig. 7G) extending to apical third of pygofer; in ventral view (Fig. 7H) ovate, outer margin rounded with hair-like setae on apical two-thirds; apex rounded. Connective (Fig. 7I) linear, long, extending almost to style apex; stem with lateral margins weakly sclerotized; dorsal keel small. Style (Fig. 7I), in dorsal view, outer lobe rounded; in lateral view (Fig. 7J) blade narrow, slightly widening subapically, curved dorsally at half length; ventral margin smooth; apex with small process curved dorsally. Aedeagus (Fig. 7K, L) with preatrium reduced; atrial portion elevated; pair of basolateral processes widened medially, apex acute extending to apical third of shaft; shaft, approximately cylindrical, shaft curved basally and straight distally, subapical portion expanded laterally; apical portion bifid, with each ramus bifurcate.
Female terminalia. Sternite VII (Fig. 8A, B) 1.5x wider than long; posterolateral corners broadly rounded; posterior margin deeply excavated on median third forming three rounded shallow notches. Pygofer (Fig. 8A, B) about 1.7x longer than maximum height; macrosetae dispersed on ventroapical half and apex of dorsal margin; apex rounded. Internal sternite VIII membranous. Ovipositor similar to the description of Polana inflexa sp. nov. except: First valvifer (Fig. 8C) 2.5x higher than long, almost elliptic, dorsal margin rounded. First valvula (Fig. 8C, D) 6x higher than long, basal portion produced anterad, slightly tapered and rounded; lateral carina with inconspicuous rounded teeth. Second valvula (Fig. 8E, F), 4.6x higher than long; dorsal margin with few very small subapical teeth. Gonoplac (Fig. 8G, H), about 3.2x longer than high.
Etymology. The epithet refers to the City of Sinop where the specimens were collected.
Material examined. Holotype male, BRAZIL, MATO GROSSO: “ SINOP - M. Grosso \ Brasil X-1975 \ M. Alvarenga Leg. ” (DZUP). Paratypes: 26♂, 33♀, same holotype data (5♂, 5♀, DZRJ; 21♂, 28♀, DZUP). Additional material: 33♂, 46♀, same holotype data “1975 or 1976” (DZUP).
Remarks. The style of the new species is similar to that of P. inflexa sp. nov. and other species on the genus but this species can be easily separated due to the aedeagus (Fig. 7K, L) with a pair of short and wide basolateral processes, and the shaft with the subapical portion expanded laterally and the apex bifid, with each ramus also bifurcate.
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 190-192, DOI: 10.11646/zootaxa.5584.2.2, http://zenodo.org/record/14830758