Cryncus Gorochov 1983
Creators: name: Nyobe, Philene Corinne Aude Um
name: Kekeunou, Sevilor
name: Ma, Libin
name: Robillard, Tony
name: Simeu-Noutchom, Alain
name: Bilong, Charles Felix Bilong
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Haglotettigoniidae
Cryncus

description: Key for the species of Cryncus
This key is produced from morphological characters and excludes C. pugu which is only known by its song.
1a. Mirror absent............................................................................... C. massarti.
1b. Mirror present....................................................................................... 2
2a. Fore wings with 3 oblique veins............................................................... C. pulchellus.
2b. Fore wings with more than 3 oblique veins................................................................ 3
3a. Short ovipositor less than 6mm .......................................................................... 4
3b. Long ovipositor more than 6mm ........ .................................................................. 5
4a. Very short ovipositor (1,3 mm).................................................................. C. dmitrievi.
4b. Short ovipositor (4-4.5 mm)….............. ..................................................... C. olsufievi.
5a. Anterior tibia with a large oval tympanum on outer face, and a small round tympanum on inner face…............... ...6
5b. Anterior tibia with a large oval tympanum on outer face, and inner face without tympana..............................7
6a. Hind tibia with 5 inner and 6 outer subapical spurs.................................................. C. saussurei.
6b. Hind tibia with 5 inner and 5 outer subapical spurs....................................... C. camerounensis sp. nov.
7a. Pronotum pale brown and unspotted.............................................................. C. scenicus.
7b. Pronotum pale brown spotted ............................. ................. ............................... 8
8a. Presence of 4 dark prominent points along the posterior edge of the pronotum and lateral lobes completely black.................................................................................................... C. rybalovi.
8b. Presence of small dark dots on pronotum and lateral lobes with pale band in lower third............................. 9
9a. Long ectoparameres extending beyond the apical end of the epiphallic lobes.............................. C. grumeti.
9b. Short ectoparameres not reaching the apical end of the epiphallic lobes.......................................... 10
10a. Male genitalia with short endoparameres, and short tapering ectoparameres............................. C. gambelae.
10b. Male genitalia with long endoparameres, and short wide ectoparameres........... ............................... 11
11a. Species less than 12mm in size with an apical field of medium length.................................. C. illubabori.
11b. Species larger than 12mm with a long apical field..................................................... ..... .. 12
12a. Ectoparameres with pointed ends.................................. ............................ C. medvedevi.
12b. Ectoparameres with rounded ends............. ...........................................................13
13a. Pronotum strongly narrowed in front, macropterous female.... ……….................................. C. apricus.
13b. Pronotum not narrowed in front, brachypterous or micropterous female... ....................................... 14
14a. Occiput with 3 black bands, the median one being wider, long and the lateral bands narrower, shorter...................................................................................................... C. desutterae sp. nov.
14b. Occiput with back zone delimited by brown bands extending laterally under each eye to the posterior end of the occiput..... .................................................................................................. 15
15a. Forewings with a mirror with a dividing vein......... .................................................. ....16
15b. Forewings with a mirror without a dividing vein........ ..................... ................................19
16a. Male forewings with 4 oblique veins......... ........................................................ .... 17
16b. Male forewings with 5 oblique veins. ............. .................... ................................ .....18
17a. Occiput with 2 brownish stripes in the black area forming the letter H; Pronotum with many black spots and dots................................................................................................... C. alternatus.
17b. Occiput with 3 short brownish stripes in the black area; Pronotum spotted by a few black dots............ C. superciliosus.
18a. Division of vein forming a circle with the mirror..................................................... C. matuga.
18b. Division of vein forming a triangle with the mirror.................................................... C. agilis.
19a. Two broad yellowish bands extending from the head to the tip of the abdomen........................... C. bifasciatus.
19b. Coloration more uniform.......................................................................... ....20
20a. Mirror with a short vein indicating the start of division................. .............................. .........21
20b. Mirror without a short vein to indicate the beginning of division.......... ......................................22
21a. Male forewings with 4 oblique veins.........................................................…. C. duplicatus.
21b. Male forewings with 5 oblique veins............................................................. C. mombo.
22a. Male forewings with 4 oblique veins............................................................. C. sagalus.
22b. Male forewings with 5 oblique veins............................................................. C. impiger.
description: Published as part of Nyobe, Philene Corinne Aude Um, Kekeunou, Sevilor, Ma, Libin, Robillard, Tony, Simeu-Noutchom, Alain & Bilong, Charles Felix Bilong, 2021, Description and bioecology of two new species of the genus Cryncus (Orthoptera Gryllidae, Gryllinae) from Cameroon with a key and distribution map of all African species, pp. 473-488 in Zootaxa 4908 (4) on pages 481-482, DOI: 10.11646/zootaxa.4908.4.2, http://zenodo.org/record/4447063