Eurhaphidophora, Gorochov, 1999

Dawwrueng, Pattarawich, Gorochov, Andrei V., Pinkaew, Nantasak & Vitheepradit, Akekawat, 2023, Review of the genus Eurhaphidophora Gorochov, 1999 (Orthoptera: Ensifera Rhaphidophoridae) from Thailand, with description of a new species, Zootaxa 5278 (2), pp. 351-362 : 360

A key to species of Eurhaphidophora in Thailand for males (updated from Dawwrueng et al., 2020)

1. Posteromedian process of ninth abdominal tergite narrow in dorsal view ( Figs 5A, D ).

- Posteromedian process of ninth abdominal tergite broad in dorsal view ( Figs 1D , 5G )............................... 3

2. Posteromedian process of ninth abdominal tergite very narrow and long (approximately 3 times as long as wide), with rounded apex in dorsal view ( Fig 5A ) and one ventral pair of thin spines visible in posterior view ( Fig 5B ); epiproct elongate ( Fig 5C )............................................................................................ E. bispina

- Posteromedian process of ninth abdominal tergite less narrow and rather short (approximately 1.7 times as long as wide), with widely angular apical notch at apex in dorsal ( Fig 5D ) and posterior ( Fig 5E ) views; epiproct clearly wider in proximal half ( Fig 5F )............................................................................... E. tarasovi doitungensis

3. Posteromedian process of ninth abdominal tergite entirely separated from dorsal part of this tergite by one weak arcuately transverse fold ( Fig 5G ); this process widely truncate ( Fig 5H ) and strongly curved downwards; epiproct broad and with small apical tubercle ( Fig 5I )................................................................... E. pawangkhananti

- Posteromedian process of ninth abdominal tergite not separated from dorsal part of this tergite ( Fig 1D ); this process almost straight and directed backward, with rounded (in dorsal view) distal part having distinct apical notch ( Fig 1D, E ); epiproct narrower and with rather thin and long apical part directed forward ( Figs 1G–I )................... E. apicoexcisa sp. nov.

A key to species of Eurhaphidophora in Thailand for females

(except for E. tarasovi doitungensis )

1. Eighth and/or ninth abdominal tergite with short and rounded posteromedian projection ( Figs 3A , 4J ).

- Eighth and ninth abdominal tergites without any posteromedian projection................................. E. bispina

2. Ninth abdominal tergite with distinct posteromedian projection slightly concave in middle part ( Fig 5J ); subgenital plate rather long, with narrowed apical part moderately long and acute ( Fig 5K ); ovipositor with narrowly rounded apex ( Fig 5L )............................................................................................ E. pawangkhananti

- Ninth abdominal tergite with short and widely rounded posteromedian projection ( Fig. 3A ); subgenital plate shorter, with narrowed apical part short and subacute ( Fig 3C ); ovipositor with acute apex ( Fig 3D )............. E. apicoexcisa sp. nov.

Figures

FIGURE 1. Eurhaphidophora apicoexcisa sp. nov., male (holotype): head with anterior part of pronotum in dorsal (A), lateral (B) and frontal (C) views; abdominal apex in dorsal (D), lateral (E), posteroventral (F), posterior (G), posterolateral (H) and ventral (I) views.

FIGURE 3. Eurhaphidophora apicoexcisa sp. nov., female (paratype): abdominal apex in dorsal (A) and lateral (B) views; subgenital plate in ventral view (C); ovipositor in lateral view (D).

FIGURE 4. Eurhaphidophora apicoexcisa sp. nov. (paratypes) in-situ: male in lateral (A) and dorsal (B) views; female with part of male in lateral view (C).

FIGURE 5. Abdominal structure of Thailand Eurhaphidophora species: E, bispina, male (A–C); E. tarasovi doitungensis, male (D–F); E. pawangkhananti, male (G–I) and female (J-L). Male (A, D, G) and female (J) abdominal apex without cerci, dorsal view; posteromedian process of male ninth abdominal tergite, posterior view (B, E, H); epiproct of male, posterior view (C, F, I); subgenital plate of female, ventral view (K); apex of ovipositor, lateral view (L). [A–C, after Gorochov (2010b).]