Xenogryllus

Jaiswara, Ranjana, Dong, Jiajia, Ma, Libin, Yin, Haisheng & Robillard, Tony, 2019, Taxonomic revision of the genus Xenogryllus Bolívar, 1890 (Orthoptera, Gryllidae, Eneopterinae, Xenogryllini), Zootaxa 4545 (3), pp. 301-338: 306

publication ID

https://doi.org/10.11646/zootaxa.4545.3.1

publication LSID

lsid:zoobank.org:pub:A6A7B9CE-9905-4DA7-8011-747D4B9325F7

persistent identifier

http://treatment.plazi.org/id/6A6AC46E-CE00-FFF0-E9AB-FEA4FA10FB10

treatment provided by

Plazi

scientific name

Xenogryllus
status

 

Key to species of Xenogryllus 

1. Dorsal disc of pronotum carinated laterally. Eyes higher than long in lateral view, occupying half of head height.......... 2

- Dorsal disc of pronotum not carinated laterally. Eyes as long as high in lateral view, restricted to dorsal third of head....... 4

2. Face almost flat in lateral view................................................... X. eneopteroides Bolívar, 1890 

- Face rounded in lateral view............................................................................. 3

3. Face bulbous in lateral view. Size rather larger. Male genitalia: Pseudepiphallic lophi ( Fig. 8FView FIGURE 8) ended by a small lamella, their inner margin almost straight, membranous.......................................... X. mozambicus Robillard  n. sp.

- Face less rounded in lateral view. Size rather shorter. Male genitalia: Pseudepiphallic lophi ( Fig. 8EView FIGURE 8) ended by a long conical apex and with a widened inner membranous margin........................... X. maniema Robillard & Jaiswara  n. sp.

4. Male FWs well widened basally, forming a wide box around abdomen........................................... 5

- Male FWs not widened, as wide as abdomen........................................... X. lamottei Robillard  n. sp.

5. Size larger (body length> 20 mm). Male genitalia: pseudepiphallic lophi strong, ended by a sharp apex with a dorsal preapical pointed expansion. Female subgenital plate posterior margin clearly indented...................................... 6

- Size smaller (body length <20 mm). Male genitalia: pseudepiphallic lophi very long and thin, ended by a lamella, without dorsal preapical pointed expansion. Female subgenital plate posterior margin not indented ( Fig. 9BView FIGURE 9)...................................................................................................... X. marmoratus ( Haan, 1844) 

6. Male genitalia: Pseudepiphallic lophi with pseudepiphallic lophi forming curved elongate hooks widened apically ( Fig. 8DView FIGURE 8). Female subgenital plate posterior margin indentation rounded laterally, as wide as long ( Fig. 9CView FIGURE 9)................................................................................................. X. maichauensis Gorochov, 1992 

- Male genitalia: Pseudepiphallic lophi straight apically. Female subgenital plate posterior margin indentation pointed laterally..................................................................................................... 7

7. Size larger. Male genitalia with larger pseudepiphallic sclerite; lophi proportionally smaller ( Fig. 8IView FIGURE 8), fused only basally, separated by a deep indentation. Female subgenital plate posterior margin indentation very deep, longer than wide ( Fig. 9GView FIGURE 9).................................................................................. X. transversus ( Walker, 1869) 

- Size smaller. Male genitalia with smaller pseudepiphallic sclerite; lophi fused on half of their length ( Fig. 8HView FIGURE 8). Female subgenital plate posterior margin indentation weak, wider than long ( Fig. 9EView FIGURE 9)......................... X. ululiu Gorochov, 1990