Phaneroptera rentzi, Divya & Senthilkumar, 2020

Divya, Govindaraj & Senthilkumar, Natchiappan, 2020, Contribution to the knowledge of the genus Phaneroptera (Tettigoniidae Phaneropterinae) with a new record from Tamilnadu, India, Zootaxa 4860 (3), pp. 425-434 : 426

Phaneroptera rentzi sp. nov.

Fig. 1—a, i, j, o ; Fig.2 —A–N,

Diagnostic characters: Male (♂). Body yellowish green. Fastigium vertices scapus wider, apically narrow with obtuse, a fine median sulcus ( Fig. 2C ), strong pigmentation on the dorsal side of fastigium as well as the entire pronotum ( Fig. 2B, D ); anterior margin of pronotum flat, posteriorly concave; tegmen surpassing the hind wing, dorsally flat, clear wing venation, cerci of male strongly bent inward behind the sub genital plate ( Fig. 2K ), apex of cercus strongly acute with short and stout black spine ( Fig. 2M and Fig. 1a ), subgenital plate strongly bifurcate, incurved ( Fig. 2 J and Fig. 1j ).

Colouration. Yellowish green colour.

Female. Unknown.

Type Material. Holotype: ♂, Dharmapuri (N 0 12007 ’11.21’’E 077051 ’.01.94’’), Tamilnadu, India. 11 II 2018. Coll. G. Divya and N. Senthilkumar. Deposited in Gass Forest Museum ( GFM), Institute of Forest Genetics and Tree Breeding, Coimbatore, Tamilnadu (India).

Distribution. Dharmapuri, Tamilnadu, India.

Etymology. This species is named in honour of Dr D. C. F. Rentz, Australia.

Discussion. The new species is completely differs from P. spinosa , P. myllocerca , P. falcata and P. gracilis on the structure of subgenital plate, supra anal plate, pronotum and fastigium vertices. P. rentzi , sp. nov. is entirely differ from the P. spinosa , P. myllocerca and P. falcata by the shape of cerci and subgenital plate. P. gracilis and P. rentzi , sp. nov. are look-alike however, the subgenital plate is entirely different ( Fig. 1j, m ). The lateral lobe of pronotum deeper than long, without white band; fairly and smoothly rounded not forming angle with disc, sharp emargination at posterior end of insertion. Subgenital plate bilobate at the apex. Distal lobe of subgenital plate not smoothly rounded but pointed. Apex of the cerci abruptly bent inwards. Stridulatory vein large almost as wide as left tegmen; distal end of file as in Fig. 2 E .

Figures

FIGURE 1. Line drawing of Left Cercus (DV), Supra anal plate (DV), Subgenital plate (VV) and Pronotum (LV) of Phaneroptera species recorded in India. a–e. Dorsal view of left cercus; f–i. Dorsal view of supra anal plate; j–m. Ventral view of Subgenital plate; n–r. Lateral view of pronotum; P. ren sp.nov. - Phaneroptera rentzi Divya and Senthilkumar sp.nov.; P. gra- P. gracilis Burmeister, 1838; P. fal- P. falcata (Poda, 1761); P. myl- P. myllocerca Ragge, 1956; and P. spi- P. spinosa Bey-Bienko, 1954. (Courtesy: Ragge, 1956; Panhwar et al., 2014).

FIGURE 2. Phaneroptera rentzi Divya & Senthilkumar, sp. nov. A–M. Phaneroptera rentzi Divya and Senthilkumar sp. nov. A—Dorsal view of male, B—Dorsal view of head and pronotum, C—Dorsal view of fastigium of vertex, D—Lateral view of pronotum, E—Stridulatory file, F—Dorsal view of right tegmen, G—Tegmen surpassing through hind wing, H—Costal margin, I—Dorsal view of left cercus, J—Ventral view of cerci, K—Ventral view of cerci with subgenital plate, L—Apex of cerci, M—Dorsal view of supra anal plate with cerci.