Hexacentrus
Creators: name: Tiwari, Chandranshu
name: Diwakar, Swati
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Tettigoniidae
Hexacentrus

description: Key to species of Hexacentrus (Serville 1831) from India
1. Prosternum and Mesosternum unicolor, femora in the general coloration.......................................... 2
- Prosternum and Mesosternum blackish brown, femora brownish at apex.......................................... 3
2. Mirror on the tegmen rhomoboid in shape, body yellowish green, third and fourth joint of tarsi blackish brown (Wang and Shi 2005: Fig 1, 4)................................................................. H. expansus (Wang and Shi)
- Mirror on the tegmen oviform........................................................................... 4
3. Antennae concolorous, Male tegmen with angular apex....................................................... 5
- Antennae discolorous, Male tegmen rounded at apex......................................................... 6
4. Male tegmen inflated.................................................................................. 7
- Male tegmen not inflated............................................................................... 8
5. Fore femora armed with 5–6 ventral spines on the inner margin, stridulatory file with 32 teeth, subgenital plate with styles curved and converging apically (Farooqi and Usmani 2018b: Fig 7I; 8A.............. H. bifurcatus (Farooqi and Usmani)
- Fore femora armed with 18–30 ventral spines on inner and outer margin, stridulatory file with 20–23 teeth, styles diverging from each other (Ghosh et al. 2023: Fig 11 A–D, 12)....................................... H. tiddae (Ghosh et al.)
6. Hind wings are shorter and hidden under tegmen, stridulatory file with 37–40 teeth with 4 large teeth in the middle (Ghosh et al. 2023: Fig 3A–B, 5)........................................................... H. khasiensis (Ghosh et al.)
- Hind wings same size or larger than tegmen, stridulatory file homogenous with 40 teeth (Ghosh et al. 2023: Fig 7 A–B, 9)................................................................................... H. ashoka (Ghosh et al.)
7. Stridulatory file homogenous, Ovipositor straight, base thickened (Ingrisch and Shishodia 2000: Fig 143–144)............................................................................................ H. major (Redtenbacher)
- Stridulatory file with 2–3 large teeth, ovipositor curved, rather longer than the body................ H. mundus (Walker)
8. Male tegmen short and broad, stridualtory file moderately sulcate with <30 teeth and with>3 large teeth................ 9
- Male tegmen long and narrow, stridulatory file moderately sulcate with>30 teeth and 3 large teeth at the distal end (Farooqi and Usmani 2018b: Fig 1; Inagaki et al. 1990: Fig B,D)...................................... H. unicolor (Serville)
9. Stridulatory file with 5 large teeth towards the distal end, Subgenital plate long with elongated, wide, longitudinal median furrow, lateral ridges well developed, apical margin with rounded excision; styles straight, diverging apically, chirping call (Inagaki et al. 1990 Fig A, B; Farroqi and Usmani 2018b: Fig 4I)............................... H. japonicus (Karny)
- Stridulatory file with 4 large teeth in the middle, Subgenital plate long with elongated, wide, longitudinal median furrow, lateral ridges well developed, apical margin with rounded excision; with styles curved, converging apically, buzzing call (Fig 1G, 1I).................................................................................... H. sylvanus sp. nov
description: Published as part of Tiwari, Chandranshu & Diwakar, Swati, 2024, The Orchestra Nocturne: Description For Six New Katydid Species From India (Orthoptera: Tettigoniidae), pp. 227-245 in Zootaxa 5405 (2) on pages 228-229, DOI: 10.11646/zootaxa.5405.2.4, http://zenodo.org/record/10603343