Euconocephalus Karny, 1907

Kumar, Hirdesh, Chand, D. Suresh, Raghunathan, C. & Banerjee, Dhriti, 2023, A new species of Euconocephalus Karny, 1907 (Orthoptera: Tettigoniidae: Conocephalinae: Copiphorini) from India, Zootaxa 5230 (2), pp. 202-208 : 203

Genus Euconocephalus Karny, 1907

Type species: Locusta acuminata Fabricius (= Euconocephalus nasutus ).

Diagnosis: Fastigium of vertex wider than the first antennal segment, with a tooth at the base below, clearly separated from the front. Pronotum smooth or rugose-granulated, lateral lobes narrow. Prosternum bispinose. Meso and metasternal lobes triangular, pointed, rarely oval. Elytra narrow, usually far exceeding the abdomen, rounded or obliquely truncated or pointed at the apex.

Male. Supra-anal plate emarginated on posterior margin, extended on both sides into a more or less pointed lobe. Cerci thick, cylindrical, hairy, at the tip curved inward in a hook-like manner, inside in front of the tip with a sharp, long spine. Subgenital with triangular margins.

Female. Subgenital plate triangular, with more or less emarginated posterior margin. The ovipositor fairly straight, narrow, slightly wider in the middle, compressed at the sides.

Key to Indian species of Euconocephalus Karny, 1907

(Reworked from Farooqi & Usmani, 2018)

1. Meso- and metasternum brown, without longitudinal fascia, unicolour ( Farooqi & Usmani, 2017: Figs. 2D , 5D, 8D; Shah & Usmani, 2022: Fig. 8).................................................................................. 3

- Meso- and metasternum with black longitudinal fascia, interrupted ( Shah & Usmani, 2022: Fig. 23; Text fig. 2B)......... 2

2. Fastigium of vertex without median carinula ( Shah & Usmani, 2022: Fig. 21). The anterior external margin of the elytra is pale or translucent, elytra with obtusely rounded apex ( Shah & Usmani, 2022: Fig. 18); stridulatory file curved with 58 teeth ( Shah & Usmani, 2022: Fig. 29). Male subgenital plate with deep and narrow triangular incision, styli comparatively short not reaching to the apex of cerci ( Shah & Usmani, 2022: Fig. 24)........................ E. farooqii Shah & Usmani, 2022

- Fastigium of vertex with weak median carinula (Text fig. 2A). The anterior external margin of the elytra is brownish-black (Text fig. 2F), elytra with narrowly rounded apex (Text figs. 1A, C); stridulatory file curved with 70 teeth (Text fig. 2E, 3A, B). Male subgenital plate with comparatively less deep and wider triangular incision, styli comparatively long, reaching almost to the apex of cerci (Text fig. 2G)....................................... E. narayanpurensis sp. nov. Kumar & Chand

3. Fastigium of vertex less than 1.5 times as long as wide. Stridulatory file with less than 75 teeth....................... 4

- Fastigium of vertex more than 1.5 times as long as wide ( Farooqi & Usmani, 2017: Fig. 8B; Shah & Usmani, 2022: Fig. 5). Stridulatory file with 76 teeth ( Farooqi & Usmani, 2017: Fig. 8G; Shah & Usmani, 2022: Fig. 14)..................................................................................................... E. incertus (Walker, 1869)

4. Fastigium of vertex with apex blunt ( Farooqi & Usmani, 2017: Fig. 2B ; Farooqi & Usmani, 2018: 2 B); anterior external margin of the elytra is pale or translucent......................................................................... 5

- Fastigium of vertex with apex rounded ( Farooqi & Usmani, 2017: Fig. 5B); anterior external margin of the elytra is brownishblack..................................................................... E. pallidus (Redtenbacher, 1891)

5. Stridulatory file curved with 68 teeth ( Farooqi & Usmani, 2017: Fig. 2G ); lateral carinae of pronotum present ( Farooqi & Usmani, 2017: Fig. 2C ); Wing reaching middle of hind tibiae when folded; wings longer than the ovipositor when straight; ovipositor almost straight......................................................... E. nasutus (Thunberg, 1815)

- Stridulatory file curved with 72 teeth ( Farooqi & Usmani, 2018: Fig. 2G ); lateral carinae of pronotum absent ( Farooqi & Usmani, 2018: Fig. 2C ); wing reaching beyond the middle of hind tibiae when folded; wings as long as ovipositor when folded; ovipositor slightly decurved............................................. E. budaunensis Farooqi & Usmani, 2018

Figures

FIGURE 2. Euconocephalus narayanpurensis sp. nov. Kumar & Chand (Male). A—Head & pronotum, dorsal view. B— Sternum, ventral view. C—Frons. D—Head & pronotum, lateral view. E—Stridulatory file of left elytra, ventral view. F— Upper part of elytra, dorsal view. G—Abdominal apex, dorsal view. H—Abdominal apex, ventral view. I—Abdominal apex, lateral view.