Neozygina apicalis, Catalano, María Inés, Paradell, Susana & Dietrich, Christopher H., 2013

Catalano, María Inés, Paradell, Susana & Dietrich, Christopher H., 2013, Three new species of Neozygina Dietrich & Dmitriev (Hemiptera, Cicadellidae, Typhlocybinae) from Argentina, with a key to South American species, Zootaxa 3652 (1), pp. 156-162 : 157-159

Neozygina apicalis sp. nov.

( Figs. 1 A–H)

Description. Length of male 2.9 mm. Ground color stramineous, infused with light brown; mesonotum with basal triangles dark brown; forewing without distinct markings (fig. 1A).

Male: Second sternal apodemes (2S) (fig. 1B) not reaching posterior margin of third segment. Pygofer (fig. 1C) with conspicuous microsetae, single macroseta near base of dorsal appendage; dorsal appendage arising near base of lobe, straight in lateral view, curved mesad in dorsal view, extended nearly to apex of pygofer; ventral appendage arising preapically, well developed, extended dorsomesad. Subgenital plate (fig. 1D) with basolateral angle acute; submarginal row of three macrosetae; marginal row of microsetae from subbasal angle to apex. Style (fig. 1E) with preapical lobe rounded, enlarged; apex truncate with lateral angle short, acute, medial angle ~90º, with small preapical denticuli. Connective (fig. 1F) broadly U-shaped. Aedeagus (figs. 1G–H) with preatrium absent, dorsal apodeme T-shaped in posterior view; shaft slightly compressed, paired subbasal ventral processes less than half length of shaft, close to each other throughout length, divergent from shaft in lateral view; paired distal processes arising slightly distad of gonopore, long, slender, extended ventrolaterad; pair of short apical dorsal processes directed anteroventrad; apex in posterior view slender, not bifurcate; gonopore subapical.

Material examined. Holotype male, ARGENTINA: P.N. Chaco 70m 26°48´50”S 59°36´52”W, Chaco province, 11–13 January 2008 (Dietrich et al col. Malaise trap) [MLP]. Paratypes: 1 male and 1 female, same data as holotype [INHS]; 2 males: ARGENTINA: Las Tipas 966 m 26º37’53.16”S 65º23’03.28”W, Tucumán province, 16 November- 4 December 2011 (Virla col. Malaise trap) [1 male in MLP; 1 male in IML].

Etymology. The specific name refers to the position of the aedeagal processes apical to gonopore.

Note. This species closely resembles N. argentiniensis but has the dorsal appendage of the pygofer shorter, and two pairs of apical processes arising slightly distad of the gonopore.

Figures

FIGURE 1. Neozygina apicalis sp. nov. A, male, dorsal habitus; B, second sternal apodemes; C, pygofer, lateral view; D, subgenital plate; E, style; F, connective; G, aedeagus in lateral view; H, aedeagus in posterior view. Scale = 0.1 mm.