Bifidocoelotes Wang, 2002
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publication ID |
https://doi.org/ 10.11646/zootaxa.5222.2.6 |
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publication LSID |
lsid:zoobank.org:pub:FE85AE6D-F4F0-4765-A600-14D90B45AB8B |
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DOI |
https://doi.org/10.5281/zenodo.7469747 |
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persistent identifier |
https://treatment.plazi.org/id/03CE87C2-D705-FF8B-B798-FDC9FA3CFB42 |
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treatment provided by |
Plazi |
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scientific name |
Bifidocoelotes Wang, 2002 |
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Genus Bifidocoelotes Wang, 2002 View in CoL View at ENA
Type species: Bifidocoelotes tsoi Li & Blick, 2020 View in CoL .
Diagnosis: Females can be recognized by the combination of the following characteristics: a single epigynal tooth pale in color and variably keratinized (this kind of tooth is often difficult to see) which originates on the anterior margin of the epigyne, is at least half the length of epigyne, and has a bifurcated tip of varying degrees ( Fig. 1A–F View FIGURE 1 ); the presence of a spermathecal head, and the different configuration of spermathecae and copulatory ducts. Males can be recognized by the combination of the following characteristics: a more or less bifid conductor; a long and slender embolus originating proximally; an extremely long cymbial furrow; a relatively small and spoon-like median apophysis; a broad retrolateral tibial apophysis; a lateral tibial apophysis present and a finger-like patellar apophysis ( Figs 2A–D View FIGURE 2 , 4C–E View FIGURE 4 ; Zhou et al. 2017: figs 1C–E, 2E–G, 3C–E, 4E–G, 5; Wang et al. 2001: figs 3, 4). Both sexes have three promarginal and two retromarginal cheliceral teeth.
Composition: Six species, Bifidocoelotes elongatus sp. nov. (♀), B. mammiformis sp. nov. (♀, ♁), B. quadratus sp. nov. (♀); B. obscurus Zhou, Yuen & Zhang, 2017 (♀, ♁), B. primus ( Fox, 1937) (♀, ♁) and B. tsoi Li & Blick, 2020 (♀, ♁).
Distribution: China (Guangdong, Guangxi, Hong Kong, Taiwan) ( Fig. 7 View FIGURE 7 ).
Key to the Bifidocoelotes species
1. Male............................................................................................... 2
- Female............................................................................................. 5
2. Conductor slightly bifurcated terminally ( Fig. 2C View FIGURE 2 ; Zhou et al. 2017: fig. 5)................................ B. primus View in CoL
- Conductor strongly bifurcated terminally ( Fig. 2A, B, D View FIGURE 2 )..................................................... 3
3. The two branches of conductor subequal in length ( Fig. 2B View FIGURE 2 ).............................................. B. tsoi View in CoL
- One branch of conductor clearly longer than the other ( Fig. 2A, D View FIGURE 2 )............................................. 4
4. The proximal branch of conductor smaller and shorter than the other ( Fig. 2A View FIGURE 2 )................ B. mammiformis sp. nov.
- The proximal branch of conductor stronger and longer than the other ( Fig. 2D View FIGURE 2 )........................... B. obscurus View in CoL
5. Epigynal tooth only slightly bifurcated ( Fig. 1A, E View FIGURE 1 ).......................................................... 6
- Epigynal tooth deeply bifurcated (bifurcated ca. 1/3 to 1/2 the length of the epigynal tooth) ( Fig. 1B–D, F View FIGURE 1 ).............. 7
6. Spermathecal head mammillary ( Zhou et al. 2017: figs 1B, 2D)....................................... B. obscurus View in CoL
- Spermathecal head thumb-shaped ( Fig. 3D View FIGURE 3 )................................................ B. elongatus sp. nov.
7. Atrium extremely large, quadrate ( Figs 1F View FIGURE 1 , 6C View FIGURE 6 )............................................ B. quadratus sp. nov.
- Atrium relatively small or absent ( Fig. 1B–D View FIGURE 1 ).............................................................. 8
8. Spermathecae longitudinally extended ( Wang et al. 2001: figs 1, 2)........................................ B. tsoi View in CoL
- Spermathecae more or less globular ( Fig. 5D View FIGURE 5 ; Zhou et al. 2017: figs 3B, 4D)...................................... 9
9. Spermathecae long finger-shaped, almost touching each other ( Zhou et al. 2017: figs 3B, 4D)................. B. primus View in CoL
- Spermathecae small ball-shaped and separated far from each other ( Fig. 5D View FIGURE 5 ).................. B. mammiformis sp. nov.
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