Byrrhidium OvaLe Harold 1869
Creators: name: Deschodt, Christian M.
name: Davis, Adrian L. V.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Byrrhidium

description: NEW KEY TO THE GENERA AND SPECIES IN THE BYRRHIDIUM GROUP (adapted from Deschodt et al., 2016) 1 Foretibiawiththreeexternal denticles..... 2 — Foretibiawithtwoexternaldenticles...... 8 2 Habitus relatively large, longer than 10 mm and elongate <i>Versicorpus</i> Deschodt, Davis dScholtz......................... 3 — Habitus smaller than 10 mm long and convex................................ 4 3 Mesometasternal suture curving forward; punctures on prosternum large; Erongo Mountain.... <i>V.</i> <i>erongoense</i> Deschodt, Davis &amp; Scholtz — Mesometasternal suture straight; punctures on prosternum small; Tsondab Mountain........................ <i>V.streyi</i> (Frolov) 4 Clypeal horns as long as, or longer than, distance between them....... <i>Namakwanus</i> Scholtz &amp; Howden … 5 — Clypeal horns shorter than distance between them.. <i>Namaphilus</i> gen. nov. Deschodt &amp; Davis … 6 5 Space between clypeal horns about one and a half times more at base than the width of a single horn at apex; clypeal horns not upturned and slightly pointing inward at the apex; Windhoek area................ <i>N.</i> <i>iriSsi</i> Scholtz &amp; Howden — Spacebetween clypealhornsabouttwotimes greater at base than the width of a single horn at apex; clypeal horns more upturned and slightly pointing inward at the apex; Gobabebarea........ <i>N. scholtzi</i> spec. nov. 6 Area between clypeal teeth somewhat arcuate.......... <i>N. ameibensis</i> spec. nov. — Areabetweenclypealteethstraight...... 7 7 Tips of parameres with two notches in frontal view; Naukluft Mountains to the south of the Tsondab River canyon.... <i>N. endroedyi</i> (Deschodt,Davis &amp; Scholtz) — Tips of parameres without notches in frontal view; HardapDam.... <i>N. davisi</i> (Deschodt &amp; Scholtz) 8 Clypeus clearly bidentate with clypealhorns long...... <i>Dicranocara</i> Frolov &amp; Scholtz … 9 — Clypeus quadridentate, with short medial clypealhorns....................... 12 9 Aedeagus without lateral horns on parameres............................. 10 — Aedeagus with lateral horns on parameres.................................. 11 10 Apex of parameresbulky; northern Richtersveld...... <i>D. inexpectata</i> Deschodt &amp; Scholtz — Apex of parameres slender; southern Richtersveld, Boom River............. <i>D. deschodti</i> Frolov &amp; Scholtz 11 Side horns on aedeagus extending somewhat sideways, tip curved downwards; Richtersveld National Park in South Africa.......... <i>D. tatasensis</i> Deschodt &amp; Scholtz — Side horns on aedeagus slightly forward, tip not curved downwards; Fish River Canyon......... <i>D. vandersmisseni</i> Moretto 12 Clypealhorns short, mesometasternal suture not well defined; south of Orange River............. <i>Byrrhidium</i> Harold … 13 — Clypealhorns of medium length, mesometasternal suture well defined; north of Orange River...... <i>Drogo stalsi</i> Deschodt, Davis &amp; Scholtz 13 Aedeagus with side protrusions, fore tibia with outer teeth parallel; Richtersveld in South Africa........... <i>B. convexum</i> Scholtz &amp; Howden — Aedeagus plain with no side protrusions, fore tibia with outer teeth diverging; Namaqualand.................. <i>B. ovale</i> Harold NOTES ON THE CURRENTLY KNOWN SPECIES IN THE BYRRHIDIUM GROUP The <i>Byrrhidium</i> group is confined to the arid west of Namibia and South Africa (Fig. 2). It currently consists of six genera and 14 described species. These species (Deschodt <i>et al</i>., 2007, 2011, 2016) may mostly be associated with dung middens of rock hyraxes (<i>Procavia capensis</i> (Pallas, 1766)). As there are gaps in the known range of this group relative to that of rock hyraxes (Fig. 2), new related dung beetle species and genera may await discovery.
description: Published as part of <i>Deschodt, Christian M. &amp; Davis, Adrian L. V., 2017, Transfer of three species of Namakwanus Scholtz &amp; Howden to Versicorpus Deschodt, Davis &amp; Scholtz or to Namaphilus gen. nov., with descriptions of two new species (Coleoptera: Scarabaeidae: Scarabaeinae), pp. 109-114 in Annals of the Ditsong National Museum of Natural History 7 (7)</i> on pages 112-113, DOI: 10.5281/zenodo.5562912
description: {"references": ["DESCHODT, C. M., DAVIS, A. L. V. and SCHOLTZ, C. H., 2016. A new monotypic genus, a species synonymy and nomenclatural corrections in the arid-adapted Canthonini (Scarabaeidae, Scarabaeinae) from the Succulent Karoo Biome of south-western Africa. Zootaxa 4147 (4): 490 - 500.", "PALLAS, P. S., 1766. Miscellanea Zoologica. A. P. van Cleef, La Haye, 224 pp."]}