Polana (Varpulana) naja, Domahovski, Alexandre Cruz & Cavichioli, Rodney Ramiro, 2017

Domahovski, Alexandre Cruz & Cavichioli, Rodney Ramiro, 2017, Six new Brazilian species of Polana (Varpulana) (Hemiptera: Cicadellidae: Gyponini) with key to males, Zootaxa 4244 (4), pp. 535-555 : 542-545

Polana (Varpulana) naja sp. nov.

( Figs 44–59 , 100 )

Diagnosis. Forewing ( Fig. 47 ) with median black maculae on costal margin. Style ( Fig. 53 ) with ventral protrusion of blade elongated. Aedeagus ( Figs 54, 55 ) with atrial processes short and membranous; shaft elongated, curved dorsally with anteapical pair of spiniform processes at posterior surface.

Description (male). Length 6.3, (n=5), female, (paratype) 7.0mm, (n=5). Head ( Fig. 44 ) in dorsal view with median length approximately four-tenths interocular width. Other characteristics as in generic description.

Coloration. Head and thorax ( Figs 44 ) brownish. Face ( Fig. 43 ) without maculae. Crown ( Fig. 44 ) with two small rounded black spots behind ocelli, near posterior margin. Prothorax with proepimeron ( Fig. 46 ), with a black strip below pronotal carina. Forewings ( Fig. 47 ) brown with black markings on: cross veins of discal cell, apex of anal veins, and a larger maculae on costal margin at half length of wing; transverse dark brown band on apical third. Legs yellow.

Male terminalia. Sternite VIII ( Fig. 48 ) 1.4 times wider than long; posterior margin broadly rounded. Pygofer ( Fig. 49 ) 1.9 times longer than maximum height; dorsal margin with short process at base; apex tapered and rounded; posterior margin ( Fig. 50 ), in ventral view, with a rounded protrusion. Subgenital plate ( Fig. 51 ) 2.8 times longer than wide; apical third tapered; apex subacute. Connective ( Fig. 52 ) Y-shaped, with rami shorter than stalk; stalk elongate. Style ( Fig. 52 ), in dorsal view, with outer lobe small and rounded; in lateral view ( Fig. 53 ), ventral protrusion elongated, approximately four times longer than maximum width, apex curved ventrally and serrated; blade elongated, same height along its entire length, apical third bent dorsally, apex with acute tip. Aedeagus ( Figs 54, 55 ) with atrial processes short, elongated and membranous, one-fifth of shaft length; shaft elongated, flattened in lateral view and with apex wide in posterior view, an anteapical pair of spiniform processes arising from posterior surface on apical fifth, apex with membranous projection directed ventrally.

Female terminalia. Sternite VII ( Fig. 56 ) 1.5 times wider than long; posterolateral corners rounded; posterior margin with broad median lobe, slightly more produced posteriorly than lateral angles, and with very small Vshaped notch at middle. Pygofer ( Fig. 57 ) 1.6 times longer than maximum height. First valvifer ( Fig. 58 ) 2.4 times higher than long. First and second valves ( Figs 58, 59 ) as in the generic description.

Etymology. The new species name refers to the shape of the aedeagus in posterior view, which resembles an elapid snake of the genus Naja .

Material examined. Holotype male: " Brasil, Minas Gerais,\ Itamarandiba-\ aeroporto 09–16.II.2013 \ Malaise \ G. Melo leg." ( DZUP) ; Paratypes: 4 ♂, same data as the holotype ( DZUP) ; 1 ♂, " Encruzilhada BA \ Brasil IX-1975 \ M. Alvarenga " ( DZUP) ; 1 ♂, S.[São] Gonçalo Rio Abaixo ,\ MG (Est. Amb.\ Peti-Cemig) 10.V.2002 \ A.F. Kumagai col." ( DZUP) ; 1 ♂, same data except 14.VI.2002 ( DZUP) ; 1 ♂, same data except 05.VII.2002 ( DZUP) ; 1 ♂, same data except 30.VIII.2002 ( DZUP) ; 1 ♂, same data except 13.IX.2002 ( DZUP) ; 1 ♂, same data except 04.X.2002 ( MZUSP) ; 1 ♀, same data except 11.X.2002 ( DZUP) ; 1 ♂, same data except; 01.XI.2002 ( MZUSP) ; 1 ♀, same data except 06.XI.2002 ( DZUP) ; 1 ♂, 1 ♀, same data except 08.XI.2002 ( DZUP) ; 1 ♀, same data except 10.I.2003 ( DZUP) ; 1 ♀, same data except 24.I.2003 ( DZUP) ; 1 ♂, same data except 28.II.2003 ( MZUSP) ; 1 ♀, same data except 02.V.2003 ( MZUSP) ; 2 ♂, same data except 11.VII.2003 ( MNRJ) ; 1 ♂, same data except 27.VI.2003 ( MNRJ) ; 1 ♀, same data except 19.IX.2003 ( MNRJ) ; 1 ♀, same data except 19.XII.2003 ( MNRJ) .

Remarks. Polana (V.) naja sp. nov. is most similar to P. (V.) sapitanduva sp. nov. in having the aedeagal shaft, elongated and curved with a pair of short processes on the posterior surface. However, the new species can be easily separated from other species of Varpulana by the very short and membranous atrial processes and the aedeagal shaft with apex flattened in lateral view and wide in posterior view.

Figures

FIGURES 44 – 55. P. (F.) naja sp. nov., holotype male. 44, head and thorax, dorsal view. 45, head, frontal view. 46, head and thorax, lateral view. 47, forewing. 48 – 55, male terminalia: 48, sternite VIII, ventral view. 49, pygofer, valve and subgenital plate, lateral view. 50, apex of pygofer, ventral view. 51, subgenital plate, ventral view. 52, style and connective, dorsal view. 53, style, lateral view. 54, aedeagus, lateral view. 55, aedeagus posterior view. Scale bars: 44 – 46 = 1.0 mm, 47 = 2.0 mm, 48 – 4 9 = 0.5 mm, 50 – 55 = 0.25 mm.

FIGURES 56 – 59. P. (F.) naja sp. nov., female paratype terminalia: 56, sternite VII and pygofer, ventral view. 57, pygofer and valvulae, lateral view. 58, first valvifer and first valvulae, lateral view. 59, second valvulae, lateral view. Scale bars: 56 = 1.0 mm, 57 – 59 = 0.5 mm.

FIGURES 97 – 102. Holopypes habitus, dorsal view (up) and lateral view (down). 97, P. (F.) bahiensis sp. nov. 98, P. (F.) grossii sp. nov. 99, P. (F.) intricata sp. nov. 100, P. (F.) naja sp. nov. 101, P. (F.) sapitanduva sp. nov. 102, P. (F.) vulgaris sp. nov. Scale bars = 1.0 mm.

FIGURES 32 – 43. P. (F.) intricata sp. nov., holotype male. 32, head and thorax, dorsal view. 33, head, frontal view. 34, head and thorax, lateral view. 35, forewing. 36 – 43, male terminalia: 36, sternite VIII, ventral view. 37, pygofer, valve and subgenital plate, lateral view. 38, apex of pygofer, ventral view. 39, subgenital plate, ventral view. 40, style and connective, dorsal view. 41, style, lateral view. 42, aedeagus, lateral view. 43, aedeagus dorsal view. Scale bars: 32 – 34 = 1.0 mm, 35 = 2.0 mm, 36 – 37 = 0.5 mm, 38 – 43 = 0.25 mm.