Batriscenellus

• Main Authors: Yin, Zi-Wei, Li, Li-Zhen, Zhao, Mei-Jun
• Format: Text
• Language: unknown
• Published: Zenodo 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Coleoptera; Staphylinidae; Batriscenellus; Yakutia
• Online Access: https://dx.doi.org/10.5281/zenodo.6184846; https://zenodo.org/record/6184846

Key to the species groups and to the Chinese species of Batriscenellus (based on males) 1. Abdomen simple in structure, without sensory setae, patch or excavation; metafemora strongly modified (fig. 28)............................................................................ ( B . uenoi species group) B . femoralis sp. n. - Abdominal tergites IV–VI with either specialized setae, or patch, or excavation; metafemora normal in structure.......... 2 2. Tergite IV with a large median excavation, tergites V–VI simple in structure............... ( B . auritus species group)... 3 - Tergite IV lacking median excavation, tergites V–VI with either sensory setae, or patch or excavation.................. 7 3. Abdominal tergite IV with pair of lateral setiferous patches (figs. 10, 12, 14; Nomura, 2003: 168, fig. 2 -B; Löbl, 1974: 92, fig. 1)................................................................................................. 4 - Abdominal tergite IV lacking lateral setiferous patches (Nomura, 2003: 168, fig. 2 -D)............ B . subalpicolus (Nomura) 4. Excavation of tergite IV located near base, lateral setiferous patches large, tergite V modified (figs. 12–15).............. 5 - Excavation of tergite IV located near apex, lateral setiferous patches much smaller, tergite V unmodified (figs. 10–11; Nomura, 2003: 168, fig. 2 -B)................................................................................... 6 5. Tergite IV with lateral margins of excavation well-delimited by widely forked ridges, with pair of small setiferous patches mesal to ridges, median excavation of tergite V narrow (figs. 12–13)............................... B . chinensis sp. n. - Tergite IV with lateral margins of excavations defined by indistinct parallel ridges, lacking setiferous patches mesal to ridges, median excavation of tergite V much wider (figs. 14–15).......................................... B . pulcher sp. n. 6. Length more than 2.00; tergite IV with base of excavation bearing filament structure (Nomura, 2003: 168, fig. 2 -B); aedeagus in lateral view with short ventral lobe, dorsal apophysis not split in apical half (Nomura, 2003: 170, fig. 4 -B).................................................................................................... B . satoi (Nomura) - Length less than 1.75; tergite IV lacking filament structure (figs. 10–11; Löbl, 1974: 92, fig. 1); aedeagus in lateral view with distinctive elongate ventral lobe, dorsal apophysis bifurcate in apical half (fig. 16; Löbl, 1974: 93, fig. 3)... B . auritus (Löbl) 7. Abdominal tergite V with pair of lateral setiferous patches (Nomura, 1991: 384, fig. 116 -A–F; 387, fig. 117 -A–B)........................................................................................... B . fragilis species group - Abdominal tergite V lacking lateral setiferous patches (Nomura, 1991: 387, fig. 117 -C; Kurbatov, 1990: 74, fig, 2 -A)..... 8 8 Abdominal tergite V with broad and sparse setae at posteromedian margin; tergite VI with very broad excavation on basomedian portion, apex lacking specialized long setae (Nomura, 1991: 387, fig. 117 -C)........... B . transformis species group - Abdominal tergite V with much narrower and denser setae at posteromedian margin; tergite VI with excavation also narrow, apex with tuft of specialized long setae (Kurbatov, 1990: 74, fig, 2 -A)...................... B . admonitor species group : Published as part of Yin, Zi-Wei, Li, Li-Zhen & Zhao, Mei-Jun, 2011, Batriscenellus Jeannel (Coleoptera, Staphylinidae, Pselaphinae) redefined, with notes on the Chinese species, pp. 37-50 in Zootaxa 3016 on pages 48-49, DOI: 10.5281/zenodo.201335 : {"references": ["Nomura, S. (2003) Two new species of Batrisiella (Coleoptera, Staphylinidae, Pselaphinae) from the alpine area of Sichuan, China. Special Bulletin of the Japanese Society of Coleopterology, 6, 165 - 172.", "Lobl, I. (1974) Beitrag zur Kenntnis der Pselaphidae (Coleoptera) der Koreanischen Volksdemokratischen Republik. Acta Zoologica Cracoviensia, 19 (5), 91 - 104.", "Nomura, S. (1991) Systematic study on the genus Batrisoplisus and its allied genera from Japan (Coleoptera, Pselaphidae). Esakia, 30, 1 - 462.", "Kurbatov, S. A. (1990) To the knowledge of the pselaphid beetles (Coleoptera, Pselaphidae) of Yakutia and Far East. Revue d'Entomologie de l'URSS, 69 (1), 71 - 78 (in Russian with English abstract)."]}