Polana (Varpulana) recurva, Domahovski & Cavichioli, 2020

Domahovski, Alexandre Cruz & Cavichioli, Rodney Ramiro, 2020, Three new species of Polana (Varpulana) (Hemiptera: Cicadellidae: Gyponini) from Brazil, with updated key to males and taxonomic notes on the female genitalia, Zootaxa 4767 (4), pp. 501-517 : 509

Polana (Varpulana) recurva sp. nov.

( Figs 45–66 , 71, 72 )

Diagnosis. Style ( Fig. 55 ) with apical portion of blade recurved. Aedeagus ( Figs 56, 57 ) with apodemal processes filiform; shaft with pair of processes near base and without subapical processes.

Measurements (mm). Holotype male: total length 6.2. Paratypes (male), 6.1−6.3; (female), 6.9−7.0.

Description. A s in description of the subgenus.

Coloration. Head and thorax ( Figs 45 , 71, 72 ) brown. Crown ( Fig. 45 ) with two small rounded black spots behind ocelli, near posterior margin. Pronotum ( Fig. 45 ) with eight black maculae near anterior margin. Face ( Fig. 46 ) without maculae. Proepimeron ( Fig. 47 ), with a black strip below pronotal carina. Forewing ( Fig. 48 ) brown with black markings on cross veins of discal cell and apex of anal veins; with transverse dark brown band on apical third, from R1 vein to apex of clavus; apex smoky. Legs light brown.

Male terminalia. Sternite VIII ( Fig. 49 ) 1.4 times wider than long; posterior margin broadly rounded, slightly emarginated. Valve ( Fig. 50 ) with posterior margin rounded with small median notch. Pygofer ( Fig. 51 ) 1.7 times longer times longer than maximum height; dorsal margin with short process at base; apex tapered and slightly excavate; posterior margin ( Fig. 52 ), in ventral view, with rounded protrusion near apex. Subgenital plate ( Fig. 53 ) 2.5 times longer than wide; tapered toward apex; apex rounded. Connective ( Fig. 54 ) linear, with stalk long and wide, 1.5 times longer than arms width. Style ( Fig. 54 ), in dorsal view, with outer lobe small and subacute; in lateral view ( Fig. 55 ), ventral protrusion short, as wide as long, apex serrated; blade recurved, slightly tapered toward apex; apex curved outward and acute. Aedeagus ( Figs 56, 57 ) with apodemal processes filiform and curved dorsally, shorter than shaft length; shaft curved dorsally, wider near base and tapered toward apex, with pair of processes near base and parallel to shaft, shorter than shaft apex, without subapical processes; shaft apex membranous, curved ventrally.

Female terminalia. Sternite VII ( Fig. 58 ) 1.6 times wider than long; posterolateral corners rounded; posterior margin slightly excavated laterad of rounded median lobe with small notch medially. First valvifer ( Fig. 60 ) 1.9 times higher than long. First valvula ( Fig. 62 ) with apex abruptly tapered with dorsal margin irregular. Second valvula ( Fig. 64 ) apex with approximately eight small teeth. Other characteristics as in the description of the subgenus.

Etymology. The new species name refers to the apically recurved style.

Material examined. Holotype male: “ Brasil, Paraná, S. [São] J. [José] dos\ Pinhais , 25°36’18”S \ 49°11’37”W 880m \ 01-31.III.2018 Malaise\ A.C. Domahovski leg.”, ( DZUP) . Paratypes: 1♀, same data as holotype except 01- 30.II.2018, ( DZUP); 2♀, same data as holotype except 01-30.IV.2018, ( DZUP); 1♂, same data as holotype except 05-15.XII.2018 Sweep, ( DZUP); 1♂, same data as holotype except 01-31.XII.2019, ( DZUP) .

Remarks. Polana (V.) recurva sp. nov. is most similar to P. (V.) pandara in overall coloration ( Fig. 71 ) and in having the aedeagus with apodemal processes very thin and the shaft with processes at mid-length, without subapical processes ( Fig. 56 ). However, the new species can be easily separated by the smaller size (6.1 to 7.0mm in the new species and 8.2 to 9.3 in P. (V.) pandara ) and the sinuous apical portion of the style ( Fig. 55 ), a characteristic not found in the other species of Varpulana.

Figures

FIGURES 45–57. P. (V.) recurva sp. nov., holotype male. 45, head and thorax, dorsal view. 46, head, ventral view. 47, head and thorax, lateral view. 48, forewing. 49, sternite VIII, ventral view. 50, valve, ventral view. 51, pygofer, valve, and subgenital plate, lateral view. 52, apex of pygofer, ventral view. 53, subgenital plate, ventral view. 54, style and connective, dorsal view. 55, style, lateral view. 56, aedeagus, lateral view. 57, aedeagus posterior view. Scale bars in mm.

FIGURES 58–66. P. (V.) recurva sp. nov., female terminalia. 58, apical portion of abdomen, ventral view. 59, pygofer and ovipositor, lateral view. 60, first valvifer and first valvula, lateral view. 61, enlarged view of dorsal sculpturing. 62, apical portion of first valvula. 63, second valvula, lateral view. 64, apical portion of second valvula. 65, second valvifer and gonoplac, lateral view. 66, apical portion of gonoplac. Scale bars in mm.

FIGURES 67–72. Holotypes habitus, dorsal view (left) and lateral view (right). 67, 68, Polana (V.) agualimpa sp. nov., 69, 70, Polana (V.) feitosai sp. nov.,71, 72, Polana (V.) recurva sp. nov., Scale bars = 2.0 mm.