Amusodes Hebard, 1928

Desutter-Grandcolas, Laure, 2014, New taxa and data for Neotropical Phalangopsidae (Orthoptera, Grylloidea), Zootaxa 3866 (3), pp. 398-420 : 412

Genus Amusodes Hebard, 1928

( Fig. 5 D–F)

Amusodes Hebard, 1928a: 48 .

Type species. Amusus festae Giglio-Tos, 1897 .

Distribution. Southern Central America and northwestern South America.

Emended diagnosis. Genus described on females only by Hebard (1928a); male described here for the first time. In addition to characters given by Hebard (1928a). Male. FWs narrow with parallel lateral margins, covering less than half abdomen, corneous (but dorsal field of left FW membranous). Stridulatory apparatus ( Fig. 5 D): file oblique, deeply impressed on dorsal side; very high on FW ventral side and with very few teeth on inner margin (3 in observed material); harp with numerous, faint, oblique and parallel veins; mirror not well-separated, reticulated. Other venation: chords longitudinal, straight, parallel, reaching almost distal margin of dorsal field; distal field very short; lateral field with 3 to 4 longitudinal parallel veins, with or without an additional, small incomplete one. Metanotum and tergites not glandular. Supra anal plate not glandular, without elongate distal processes. Subgenital plate short and high, deeply furrowed on distal half. Male genitalia. Glandular. Compact, with a raised and partly reverse pseudepiphallic sclerite, and two pseudepiphallic arms made of three different sclerites ( Fig. 5 E, F): A-sclerite S-shaped, running between the base of pseudepiphallic arms and the pseudepiphallic parameres; B-sclerite very short; C-sclerite divided into a long and spine-like dorsal sclerite, enlarged apically, and a long and almost straight, but distally truncated sclerite ( Fig. 5 F); rami very short and lateral; ectophallic fold very short, truncate, located between the arms, ventrally sclerized apically ( Fig. 5 E); ectophallic apodemes very high and short, widely separated; ectophallic arc located at the level of pseudepiphallic sclerite, but connection between ectophallic sclerotization and pseudepiphallic parameres located very posteriorly; no endophallic cavity; endophallic sclerite with three distal prongs ( Fig. 5 E); endophallic apodemes made a short distal plate and a raised and hollowed median crest. Female genitalia. Not examined.

Phylogenetic relationships. By its general shape, morphology and coloration, Amusodes is close to Luzara and its allies (see above). Its complex male genitalia also show the same structure, with a raised pseudepiphallic base, a pair of pseudepiphallic arms made of the three different sclerites called A, B and C (see Desutter- Grandcolas, 1992a), compact pseudepiphallic parameres located distally on pseudepiphallic arms, short and high ectophallic apodemes, and endophallus. This morphological hypothesis is supported by molecular evidence (Chintauan-Marquier et al., submit., and see above).

Material examined. Colombia, Vallée del Cavea, Chicoral, 1770m, 1 male, 28.xii.2011, F. Montealegre-Z. ( MEUV).

This specimen resembles A. estrellae Hebard, 1928a by its pale and weakly contrasted coloration. This last species is mentioned from Panama and Colombia (Choco, Antioquia) but it is known from females only, as all the other species of the genus. Additional specimens are necessary now to check species identity.

Figures

FIGURE 5. Niquirana polita Hebard, 1928 (A – C) and Amusodes Hebard, 1928 (D – F). Male genitalia of holotypes, dorsal (A), ventral (B, E), lateral (C, F). D, Amusodes sp, male FW, dorsal. Abbreviations, see page **. Scales 1 mm.