Peracca Griffini, 1897

Ingrisch, Sigfrid, 2020, New subgenera and species of Agraeciini (Orthoptera, Tettigoniidae, Conocephalinae) from South Asia found in historical insect collections, Evolutionary Systematics 4 (2), pp. 119-132 : 119

Peracca Griffini, 1897

Peracca Griffini, 1897: 1; type species: Peracca conspicuithorax Griffini, 1897 from Malaysia, Perak, Malacca

Note.

Species of the genus Peracca Griffini, 1897 occur in Malay Peninsula, Singapore, Borneo, Sumatra, Java, and some smaller islands of that area. Seven species of Peracca have been known during my revision of the SE Asian Agraeciini ( Ingrisch 1998), plus three species of the genus Odontoconus Fritze, 1908. The species of this group received some interest more recently ( Gorochov 2011, 2015, Tan and Ingrisch 2014), which led to downgrading the rank of Odontoconus to a subgenus of Peracca , the description of another new subgenus and the description of nine new species in Peracca , thus that currently Peracca is split into three subgenera with a total of 18 valid species ( Cigliano et al. 2020).

After Odontoconus had been downgraded to a subgenus of Peracca by Gorochov (2011), a re-evaluation of the species left in that subgenus became useful. The type species P. (O.) spinipes (Fritze, 1908) is a fully winged species described from a single female from Borneo. It is a slender species with very low pronotum lateral lobes. The other three species currently kept in the subgenus were described from Java and Sumatra. Of them, only P. (O.) lampungi Gorochov, 2011 has a similarly shaped body, but shorter wings as the type of Odontoconus , and it is a male. Peracca (O.) setosus (Ingrisch, 1998), a female, agrees in general appearance with Odontoconus , but is much stouter. The relations of these three species may be re-evaluated after both sexes of them become known. Only for P. (O.) robustus (Karny, 1923), described from a single female, both sexes became known after the discovery of males in the BMNH and the BMH. This allows a new evaluation of its status and makes it necessary to establish a new subgenus for this and another new species found in the ZMH.