Saccata, Cao, Yanghui & Zhang, Yalin, 2013

Cao, Yanghui & Zhang, Yalin, 2013, Two new erythroneurine leafhopper genera and first record of Thailus Mahmood from China (Hemiptera: Cicadellidae: Typhlocybinae), with description of four new species, Zootaxa 3686 (3), pp. 363-372 : 363-364

Saccata gen. nov.

Type species: Saccata insolita sp. nov.

Description. Body medium sized, flattened. Head in dorsal view with anterior margin weakly produced, broadly rounded, as wide as pronotum; coronal suture indistinct. Face short, depressed in profile, anteclypeus and lorum broad. Mesonotum with basal triangles indistinct. Forewing with first and third apical cells wide, second and fourth apical cells narrow, fourth cell slightly longer than half length of third, without AA and AP veins. Hind wing without RA vein.

Male 2S abdominal apodemes reduced, 3S apodemes present and distinctive, arising from hind margin of third sternite, well sclerotized and darkly pigmented, visible even when abdomen is not cleared ( Fig. 1e ), pocketlike, extended to midlength of fourth sternite.

Male genital capsule spherical, pygofer side denticulate distally, with several fine setae at lower basal angle and center of lobe; dorsal appendage movably articulated to pygofer side; ventral appendage absent. Subgenital plate broadened basally, narrowing towards apex, with 2 macrosetae arising from angulate lareral projection at very base, with short peglike microsetae marginally. Style with second extension, preapical lobe prominent. Connective V-shaped, without central lobe. Aedeagal shaft tubular, with paired distal processes; preatrium long; gonopore subapical, ventral.

Etymology. The generic name is derived from the Latin word “ saccatus ” in view of the saclike shape of the abdominal apodemes. The gender is feminine.

Diagnosis. Body shape, coloration and wing venation resembling that of Accacidia Dworakowska, 1971 and Lectotypella Dworakowska, 1972b , male pygofer similar to that of Ratjalia Dworakowska, 1981 , but can be distinguished from these genera by its unique type of abdominal apodemes, situated at the hind margin of the third sternite, which are pocketlike and more tridimensional than normal lamellate second sternal abdominal apodemes, subgenital plate angulate projection bearing 2 stout macrosetae at the very base and absence of connective central lobe.

Figures

FIGURE 1. a – e, Saccata insolita sp. nov.; f – i, Variolosa meni sp. nov.; j – m, Thailus rectilinea sp. nov.; n – u, Thailus versicolor sp. nov.; a, f, j, n, r, dorsal view; b, g, k, o, s, lateral view; c, h, l, p, t, anterior dorsum (crown, pronotum and mesonotum); d, i, m, q, u, face; e, abdomen, ventral view.