Tretogonia bergi Young 1968

Dellapé, Gimena, 2016, Description of the female terminalia of twelve species of Proconiini and a key to genera from Argentina (Insecta: Hemiptera: Cicadellidae), Zootaxa 4117 (2), pp. 211-225 : 220

Tretogonia bergi Young 1968

Diagnosis. Male: pygofer processes, in ventral view, curved strongly mesally at base and subparallel apically; style truncate apically; aedeagus with a pair of elongated basal processes.

Female terminalia. Abdominal sternite VII, in ventral view ( Fig. 9 ), with lateral margins slightly convergent posteriorly, lateroposterior margins subtriangular, and posterior margin with a median long shallow emargination; surface with scattered microsetae. Pygofer, in lateral view, not produced posteriorly; surface with scattered microsetae and a few macrosetae on posterior and ventral regions. First valvifers, in lateral view, subsquare; with small spiniform processes on ventral region. First ovipositor valvulae, in lateral view, rectilinear beyond basal curvature; dorsal sculptured area formed mostly by linear processes arranged in oblique lines; ventral sculptured area formed mostly by scale-like processes; apex acute ( Fig. 21 ), with denticles on dorsal and ventral margins. Second valvulae, in lateral view, broadened beyond basal curvature; dorsal margin of blade bearing 28 to 30 continuous teeth, each tooth subtriangular with posterior side longer, with denticles on anterior and posterior margins ( Fig. 33 ); ducts extending toward teeth; apex rounded ( Fig. 45 ), with denticles on dorsal and ventral margins; preapical ventral prominence conspicuous. Gonoplacs, in lateral view, with spiniform processes on ventral margin; apex rounded.

Material examined. ARGENTINA. Misiones: 3♂. Corrientes: Ituzaingó, 2♂; Goya, 1♂; Paso de la Patria, 1♂ ( MACN); Mburucuyá, 15♂ 2♀, 23/XI/1957, Biraben col.; 2♂, on rice, Trujillo col. Entre Ríos: La Paz, 1♀, II/ 1930, Bosq col. ( MLP); Federación, 30°58´6´´S 57°56´38´´W, 1♂, 4/I/2008, light trap, Dietrich C.H. col. ( INHS).

Distribution. Brazil, Paraguay, Uruguay and Argentina: Formosa ( Young 1968), Corrientes, Entre Ríos ( Remes Lenicov & Tesón 1985), Misiones ( Paradell et al. 2012).

Figures

FIGURE 1 – 12. Abdominal sternite VII (ventral view): 1 — Aulacizes basalis, 2 — Aulacizes conspersa, 3 — Aulacizes insistans, 4 — Aulacizes obsoleta, 5 — Aulacizes quadripunctata, 6 — Cicciana latreillei, 7 — Pseudometopia amblardii, 8 — Stictoscarta sulcicollis, 9 — Tretogonia bergi, 10 — Tretogonia cribata, 11 — Tretogonia dentalis, 12 — Tretogonia notatifrons. Scale: 1 mm.

FIGURE 13 – 24. First valvulae of ovipositor, apex (lateral view): 13 — Aulacizes basalis, 14 — Aulacizes conspersa, 15 — Aulacizes insistans, 16 — Aulacizes obsoleta, 17 — Aulacizes quadripunctata, 18 — Cicciana latreillei, 19 — Pseudometopia amblardii, 20 — Stictoscarta sulcicollis, 21 — Tretogonia bergi, 22 — Tretogonia cribata, 23 — Tretogonia dentalis, 24 — Tretogonia notatifrons. Scale: 0.1 mm.

FIGURE 25 – 36. Second valvulae of ovipositor, teeth of dorsal margin (lateral view): 25 — Aulacizes basalis, 26 — Aulacizes conspersa, 27 — Aulacizes insistans, 28 — Aulacizes obsoleta, 29 — Aulacizes quadripunctata, 30 — Cicciana latreillei, 31 — Pseudometopia amblardii, 32 — Stictoscarta sulcicollis, 33 — Tretogonia bergi, 34 — Tretogonia cribata, 35 — Tretogonia dentalis, 36 — Tretogonia notatifrons. Scale: 0.1 mm.

FIGURE 37 – 48. Second valvulae of ovipositor, apex (lateral view): 37 — Aulacizes basalis, 38 — Aulacizes conspersa, 39 — Aulacizes insistans, 40 — Aulacizes obsoleta, 41 — Aulacizes quadripunctata, 42 — Cicciana latreillei, 43 — Pseudometopia amblardii, 44 — Stictoscarta sulcicollis, 45 — Tretogonia bergi, 46 — Tretogonia cribata, 47 — Tretogonia dentalis, 48 — Tretogonia notatifrons. Scale: 0.1 mm.