Polana (Polana) insolita, Domahovski, 2025

Polana (Polana) insolita sp. nov.

( Figs 1C, D View FIGURE 1 , 4 View FIGURE 4 )

Diagnosis. Style ( Fig. 4J View FIGURE 4 ), in lateral view, blade narrow, slightly widening subapically; ventral margin smooth. Aedeagus ( Fig. 4K, L View FIGURE 4 ) with preatrium strongly developed; pair of basolateral processes with basal half wide, apical portion with two acute processes directed dorsally; shaft curved anterad, flattened in lateral view; basal portion 3x wider than the apical half; apical portion bifid, membranous, with lateral margin sclerotized bearing row of short spiniform processes.

Measurements. Holotype male: total length 7.3 mm. Paratypes: males, 6.4–7.0 mm (n = 5).

Coloration. Head and thorax ( Figs 1C, D View FIGURE 1 , 4A–D View FIGURE 4 ) yellowish-brown. Crown ( Fig. 4A View FIGURE 4 ) with two small rounded black spots behind ocelli, near posterior margin; coronal suture black. Face ( Fig. 4B View FIGURE 4 ) without macula. Pronotum ( Fig. 4A View FIGURE 4 ) with eight black maculae near anterior margin. Proepimeron ( Fig. 4C View FIGURE 4 ) with a black macula near posterior corner of eye. Mesonotum ( Fig. 4A View FIGURE 4 ) with pair of black macula near lateral angle. Forewing ( Figs 1C, D View FIGURE 1 , 4D View FIGURE 4 ) yellowish-brown; veins brown outlined; black markings on base of clavus, cross veins of discal cells, apex of A1 and Pcu, and cross veins of apical cells.

Description. Equal to the description of Polana inflexa sp. nov.

Male terminalia. Sternite VIII ( Fig. 4E View FIGURE 4 ) rectangular, 1.6x longer than wide; posterior margin straight. Valve ( Fig. 4F View FIGURE 4 ) 2.4x wider than long; integument thickening present only on anterior margin; posterior margin straight. Pygofer ( Fig. 4G View FIGURE 4 ) 1.5x longer than high; basodorsal processes without subapical tooth; macrosetae dispersed on dorsoapical quadrant; ventral margin straight; apex rounded. Subgenital plate ( Fig. 4G View FIGURE 4 ) short, extending to half length of pygofer; in ventral view ( Fig. 4H View FIGURE 4 ) ovate, outer margin rounded with short setae on apical half; apex rounded. Connective ( Fig. 4I View FIGURE 4 ) linear, long, extending to apical fourth of style; stem with lateral margins weakly sclerotized; dorsal keel small. Style ( Fig. 4I View FIGURE 4 ), in dorsal view, outer lobe reduced; in lateral view ( Fig. 4J View FIGURE 4 ) blade narrow, slightly widening subapically; ventral margin smooth; apex with small process curved dorsally. Aedeagus ( Fig. 4K, L View FIGURE 4 ) with preatrium strongly developed; pair of basolateral processes with anterior half wide, tapering distally forming two acute processes directed dorsally: the apical 3x longer than the subapical; shaft curved anterad, flattened in lateral view; basal portion 3x wider than the apical half; apical portion bifid, membranous, with lateral margin sclerotized bearing row of short spiniform processes.

Female. Unknown.

Etymology. The new species name comes from the Latin word “ insolitum ” meaning unusual. It refers to the strange shape of aedeagus.

Material examined. Holotype male, BRAZIL, MATO GROSSO DO SUL: “ Brasil, Mato Grosso do \ Sul, Porto Murtinho , Faz. \ Campo Florido \ 09.xii.2012 sweep \ M. Savaris & S. Lampert ” ( DZUP) . Paratypes: 1♂, same holotype data, except Luiz de Queiroz trap ( DZUP) ; 3♂, “ Brasil, Mato Grosso do \ Sul, Porto Murtinho \ 11.II.2012 (Arm. lum. \ Luiz de Queirós , luz \ negra) M. Savaris ” ( DZUP) ; GOIÁS: 1♂, “Brasil, GO, Novo Mundo, \ Armadilha Malaise \ 13.9292ºS 49.9716ºW, \ 282m, 03.IV.2011 ” ( DZUP) GoogleMaps .

Remarks. Polana insolita sp. nov. is easily separated from all from all species o the subgenus Polana due to the unusual form of the aedeagus, especially the pair of basally wide basolateral processes and with two acute processes apically; and the membranous apex of the shaft, with lateral margins sclerotized bearing rows of short spiniform processes.