Filchnerella Karny, 1908

Ünal, Mustafa, 2016, Pamphagidae (Orthoptera: Acridoidea) from the Palaearctic Region: taxonomy, classification, keys to genera and a review of the tribe Nocarodeini I. Bolívar, Zootaxa 4206 (1), pp. 1-223 : 56

Genus: Filchnerella Karny, 1908

Karny, 1908: 36. Type species: Filchnerella pamphagoides Karny, 1908

Pseudotmethis Bey-Bienko, 1948 (Type species: Pseudotmethis alashanicus Bey-Bienko, 1948 ) syn. nov. Paratmethis Zheng & He, 1996 (Type species: Paratmethis flavitibialis Zheng & He, 1996 ) syn. nov.

Remaks. The genus Pseudotmethis established by Bey-Bienko (1948: 6) was mainly distinguished from Filchnerella Karny by the presence of strongly developed, plate-like facial carinae, which are slightly developed and weaker in Filchnerella (weaker also in Mongolotmethis Bey-Bienko ). The small differences of fastigium of vertex and tegmina are variable. The structures of the male phallic complexes of the species studied of both genera undoubtedly belong to a single genus. Only the more raised facial carina does not make it an independent genus ( Figs. 243–245 ).

On the other hand Zheng & He (1996: 294, 296) established the genus Paratmethis , which was poorly described and distinguished from Filchnerella by the presence of concavity below the median ocellus; from Eotmethis Bey-Bienko by the rounded vertex towards fastigium. But it is possible to see the same structure of frontal ridge in Filchnerella . For instance the frontal ridge of Paratmethis flavitibialis Zheng & He, 1996 is almost the same with the types of Filchnerella kukunoris Bey-Bienko, 1948 ( Fig. 243 ).

The differences given by Bey-Bienko (1948) and Zheng & He (1996) are not enough to establish a new genus, being no distinct characters in the male phallic complex along with the external morphology. Therefore the genera Pseudotmethis and Paratmethis are proposed as junior synonyms of Filchnerella .

The listed species below are given in new combinations because of the synonymies of their previous genera:

Filchnerella rufifemoralis ( Zheng & He, 1996) comb. nov.

Filchnerella gansuensis (Xi & Zheng, 1984) comb. nov.

Filchnerella rubimarginis (Li, 1986) comb. nov.

Filchnerella flavitibialis ( Zheng & He, 1996) comb. nov.

Filchnerella brachypterus (Li, 1986) comb. nov.

According to the ICZN (Article 34.2) the species name of this taxon is combined.

Figures

FIGURES 237 – 258. Habitus and body parts. 237 – 238 Thrinchus arenosus arenosus, 237 male; 238 female. 239 – 240 Filchnerella beicki, 239 male, 240 female. 241 – 242 Filchnerella alashanicus, 241 male holotype, 242 female paratype. 243 – 245 female facial carina, 243 Filchnerella kukunoris; 244 and 245 Filchnerella alashanicus, paratypes. 246 – 247 Mongolotmethis gobiensis gobiensis, 246 male holotype, 247 female paratype. 248 – 249 Beybienkia songorica, 248 male holotype, 249 female paratype. 250 Beybienkia amica, female holotype. 251 – 252 female pronotum, 251 Beybienkia lithophila, paratype; 252 Beybienkia amica, holotype. 253 – 255 Eotmethis nasutus, 253 male paratype; 254 male holotype; 255 female paratype. 256 – 257 Rhinotmethis hummeli, 256 male lateral; 257 ditto dorsal. 258 Rhinotmethis beybienkoi, male.