Neozygina argentiniensis, Dietrich & Dmitriev, 2007

Dietrich, C. H. & Dmitriev, D. A., 2007, Revision of the New World leafhopper genus Neozygina Dietrich & Dmitriev (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini), Zootaxa 1475, pp. 27-42 : 39

Neozygina argentiniensis n. sp.

( Figs. 1S, 4D–F)

Diagnosis. Length of male 2.6–2.9 mm, female 2.8–3.3 mm. Ground color stramineous, heavily marked with brown; dorsum mostly brown; temporal sutures white; mesonotum except basal triangles yellow; forwing brown, veins and costal brochosome field pale; mesepisternum and abdominal sternites mostly brown. Male pygofer ( Fig. 4D) with dorsal appendage arising near base of lobe, slightly elevated above margin, straight in lateral and dorsal view, extended nearly to apex of pygofer; ventral appendage arising preapically, well developed, extended dorsomesad. Aedeagus ( Figs. 4E, F) with preatrium absent; shaft tubular, in lateral view slen- der, nearly straight through most of length; paired subbasal processes approximately half length of shaft, slender, straight, close to each other throughout length, divergent from shaft in lateral view; distal processes arising slightly basad of gonopore, moderately long, slender, curved ventromesad; apex bifid, forming pair of short somewhat flattened processes curved dorsolaterad; gonopore apical.

Material examined. Holotype male, ARGENTINA: Catamarca, 2km N Belén, Quebrada Belén at dam, 3,590ft., 27.6159°S, 67.0130°W, 17/ 19-X-1997 (M.E. Irwin, F. D. Parker, S. Roig, Malaise trap in dry hillside ravine, MEI 97-39) [ INHS] . Paratype: 1 female, same data [ INHS] . Additional material: 2 males, 2 females, CHILE: Los Andes, V Region & Reg. Metropolitana, Santiago, June-July 2003 (José Mondaca, in traps) [all INHS] .

Notes. This species differs from other South American Neozygina in having the distal projections of the aedeagus curved away from the midline. The specimens from Chile are paler in color and have the aedeagal processes more slender than those from Argentina, but are tentatively considered conspecific.