Plexigryllacris, Ingrisch, 2018

Ingrisch, Sigfrid, 2018, New taxa and records of Gryllacrididae (Orthoptera, Stenopelmatoidea) from South East Asia and New Guinea with a key to the genera, Zootaxa 4510 (1), pp. 1-278 : 268

publication ID 10.11646/zootaxa.4510.1.1

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gen. nov.

Plexigryllacris View in CoL gen. nov.

Type species: Plexigryllacris megastyla sp. nov.

Diagnosis. The new genus is erected for the strong modification of the male abdominal apex. The ninth abdominal tergite has the posterior area divided into three lobes, one central lobe with bifid tip and a pair of long, spinose, lateral lobes. Between those lobes a large membranous surface expands, in which a pair of long projections is embedded that might interact with the lateral projections of the ninth tergite during copulation. These projections that arise from the membranous zone encircled by the ninth tergite are probably the strongly modified remnant of the tenth abdominal tergite. The subgenital plate consists of a short base, monstrous large styli and a short and narrow medial lobe. The number of spines of the fore and mid tibiae with only three pairs of long ventral spines plus the pair of apical spurs, the absence of a ventro-apical spine on the hind tibia, and the shape of the medial lobe of the male subgenital plate with slightly bilobate tip speak for a relationship with the genus Papuogryllacris .

Etymology. The name of the new genus refers to the complex abdominal apex of the males; from Latin plexus (complex, elaborate, complicated).

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