Neozygina bifurcata, 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 : 159

Neozygina bifurcata sp. nov.

( Figs. 2 A–H)

Description. Length of male 2.8–3.0 mm. Ground color stramineous, infused with brown; anteclypeus, lateral margin of frontoclypeus and mesonotal triangles brown; forewing brown, veins pale, brochosome field yellowish (fig. 2A).

Male: Second sternal apodemes (2S) (fig. 2B) reaching fourth segment. Pygofer (fig. 2C) with conspicuous microsetae, two macrosetae near base of dorsal appendage; dorsal appendage arising near base of lobe, straight in lateral and dorsal view, not reaching apex of lobe; ventral appendage arising preapically, well developed, extended dorsomesad, sinuate, apex extended mesad in dorsal view. Subgenital plate (fig. 2D) with basolateral angle obtuse; with submarginal row of three macrosetae; marginal row of microsetae from subbasal angle to apex. Style (fig. 2E) with preapical lobe quadrangular, enlarged; apex truncate with lateral angle short, acute, medial angle 90º, without preapical denticuli. Connective (fig. 2F) Y-shaped with stem and arms short. Aedeagus (figs. 2G–H) with short preatrium, dorsal apodeme T-shaped in posterior view; shaft compressed, paired subbasal ventral processes less than half length of shaft, parallel to each other throughout length, divergent from shaft in lateral view; paired distal processes arising dorsad of gonopore, long, slender, extended ventrolaterad with bifurcate apices; apex in posterior view bifid, forming pair of short, rounded apical dorsal processes; gonopore subapical.

Material examined. Holotype male, ARGENTINA: P.N. Chaco, Laguna Yacaré 60m 26°47´50”S 59°36´49”W, Chaco province, 10–13 January 2008 (Dietrich et al col. Malaise trap) [MLP]. Paratype: 1 male, same data as holotype [INHS].

Etymology. The specific name refers to the shape of the distal aedeagal processes.

Note. This species closely resembles N. antlera but has the aedeagus with basal processes, and the apex bifid (typical of South American species).

Figures

FIGURE 2. Neozygina bifurcata 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.