Oiceoptoma Leach, 1815

Sommer, David, Růžička, Jan, Nishikawa, Masaaki & Schneider, Jan, 2021, Oiceoptoma tangi (Coleoptera: Silphidae: Silphinae), a new species of carrion beetle from eastern China, Zootaxa 4949 (3), pp. 445-472 : 447-448

publication ID	https://doi.org/10.11646/zootaxa.4949.3.2
publication LSID	lsid:zoobank.org:pub:963F4818-A172-4B1D-A17A-86EB529BCFEB
DOI	https://doi.org/10.5281/zenodo.4640406
persistent identifier	https://treatment.plazi.org/id/A11D4862-FFE4-FF83-FF79-F8EE870FFE4B
treatment provided by	Plazi (2021-03-26 17:23:05, last updated 2024-11-27 11:50:40)
scientific name	Oiceoptoma Leach, 1815
status

Treatment

Oiceoptoma Leach, 1815: 89 (type species Silpha thoracica Linnaeus, 1758 , by monotypy).

Oeceoptoma: Agassiz 1847: 256 , 257 (unjustified emendation of Oiceoptoma ).

Isosilpha Portevin, 1920: 398 (type species Eusilpha hypocrita Portevin, 1903 , by original designation) (synonymy by Peck 2001: 270).

Revised diagnosis. Small to medium-sized species (body length 12.1–16.2 mm) with distinct habitus ( Figs. 1A–F View FIGURE 1 , 2A–E View FIGURE 2 , 3A–C View FIGURE 3 ; Růžička et al. 2004: 37–38, figs. 10–15), body distinctly dorsoventrally flattened and rounded, orange and/or black in colour. Pronotum exceptionally with yellow to pink lateral margins ( Ratcliffe 1996: 36, fig. 36; Růžička et al. 2004: 37, fig. 12) or with four spots on disc, arranged in trapezoidal pattern ( Figs. 1A, D View FIGURE 1 , 2E View FIGURE 2 , 3A View FIGURE 3 ). Head with short row of long erect setae behind eyes ( Fig. 3D View FIGURE 3 ), clypeus anteriorly widely notched ( Fig. 8D View FIGURE 8 ), frons with transverse, elevated crest posteriorly ( Figs. 3D View FIGURE 3 , 17C View FIGURE 17 ). Antenna medium-sized, with last four antennomeres forming a distinct club ( Figs. 7A, C–E View FIGURE 7 ). Elytral shoulders with tooth ( Fig. 3F View FIGURE 3 ). Median lobe of aedeagus rounded or pointed, parameres always longer than median lobe ( Figs. 11A–E View FIGURE 11 ; Růžička et al. 2004: 35, figs. 1–9).

Distribution. Holarctic Realm.

References

Agassiz, L. (1847) Nomenclatoris Zoologici Index Universalis, continens Nomina Systematica Classium, Ordinum, Familiarum et Generum Animalium Omnium, tam Viventium quam Fossilium, secundem Ordinem Alphabeticum unicum disposita, adjectis Homonymiis Plantarum, nec non Variis adnotationibus et emendationibus. Jent et Gassmann, Soloduri, viii + 393 + (2) pp.

Leach, W. E. (1815) Entomology. In: Brewster, D. (Ed.), Edinburgh Encyclopaedia, Volume 9. Part 1. W. Blackwood, J. Waugh, J. Murray, Baldwin & Cradock, Edinburgh, pp. 57 - 172.

Linnaeus, C. (1758) Systema Naturae per Regna Tria Naturae, secundum Classes, Ordines, Genera, Species, cum Characteri- bus, Differentiis, Synonymis, Locis. Tomus I. Editio Decima, Reformata. L. Salvii, Holmiae, (4) + 823 + (1) pp. https: // doi. org / 10.5962 / bhl. title. 542

Peck, S. B. (2001) 21. Silphidae Latreille, 1807. In: Arnett, R. H. & Thomas, M. C. (Eds.), American Beetles. Vol. 1. Archostemata, Myxophaga, Adephaga, Polyphaga: Staphyliniformia. CRC Press, Boca Raton, London, New York & Washington, pp. 268 - 271.

Portevin, G. (1903) Remarques sur les Necrophages du Museum et description d'especes nouvelles. Bulletin du Museum National d'Histoire Naturelle de Paris, 9, 329 - 336. https: // doi. org / 10.5962 / bhl. part. 25591

Portevin, G. (1920) Revision des Silphini et Necrophorini de la region Indo-Malaise. Bulletin du Museum National d'Histoire Naturelle de Paris, 26, 395 - 401.

Ratcliffe, B. C. (1996) The carrion beetles (Coleoptera: Silphidae) of Nebraska. Bulletin of the University of Nebraska State Museum, 13, 1 - 100.

Ruzicka, J., Hava, J. & Schneider, J. (2004) Revision of Palaearctic and Oriental Oiceoptoma (Coleoptera: Silphidae). Acta Societatis Zoologicae Bohemicae, 68, 30 - 51.

Figures

FIGURE 1. A–F. Habitus of Oiceoptoma tangi Sommer, Růžička, Nishikawa & Schneider, new species: A–C holotype male, D–F paratype female, Pinxi Creek; A, D—dorsal view, B, E—ventral view, C, F—lateral view. Scale 2 mm.

FIGURE 2. A–D. Habitus of Oiceoptoma subrufum (Lewis, 1888): A–C male, D—female. E. Habitus of O. nigropunctatum (Lewis, 1888), female. A, D, E—dorsal view, B—ventral view, C—lateral view. Scale 2 mm.

FIGURE 3. A–C. Habitus of Oiceoptoma nigropunctatum (Lewis, 1888), male. A—dorsal view, B—ventral view, C—lateral view. Scale 2 mm. D–F. Details of O. tangi Sommer, Růžička, Nishikawa & Schneider, new species, male paratype, Pinxi Creek. D—head dorsally, E—head ventrally, F—humerus of elytra in dorsal view.

FIGURE 7. A–C. Antenna of Oiceoptoma in dorsal view.A–C—O. tangi Sommer, Růžička, Nishikawa & Schneider, new species, Pinxi Creek, D—O. subrufum (Lewis, 1888), E—O. nigropunctatum (Lewis, 1888).

FIGURE 8. A, B. Left elytron of Oiceoptoma in ventral view. C. Detail of punctation on elytron of Oiceoptoma in ventral view. D. Head of Oiceoptoma in dorsal view. A, C, D—O. tangi Sommer, Růžička, Nishikawa & Schneider, new species, female paratype, Pinxi Creek. B—O. subrufum (Lewis, 1888). D—O. tangi Sommer, Růžička, Nishikawa & Schneider, new species, male holotype.

FIGURE 11. A–E. Aedeagus of Oiceoptoma. A, B—O. tangi Sommer, Růžička, Nishikawa & Schneider, new species, paratype, Pinxi Creek, ventral and dorsal view. C, D—O. subrufum (Lewis, 1888), ventral and dorsal view. E—O. nigropunctatum (Lewis, 1888), ventral view.

FIGURE 17. A–B. Female abdomen of Oiceoptoma, dorsal and ventral views. C. Head of Oiceoptoma, lateral view. A, B—O. tangi Sommer, Růžička, Nishikawa & Schneider, new species, female paratypes, Pinxi Creek. C—O. tangi Sommer, Růžička, Nishikawa & Schneider, new species, male holotype. ant—antenna, c—coxite, ce—compound eye, cr—crest, s—stylus, t7–9— tergum 7–9, v5–8—ventrite 5–9.