Onthophagus belorhinus, Bates, 1887

Chamé-Vázquez, Eduardo Rafael & Sánchez-Hernández, Gibrán, 2022, Onthophagus tacanensis (Coleoptera: Scarabaeidae: Scarabaeinae), a new species from Chiapas, Mexico, Zootaxa 5182 (2), pp. 196-200 : 199

publication ID	https://doi.org/10.11646/zootaxa.5182.2.6
DOI	https://doi.org/10.5281/zenodo.7053961
persistent identifier	https://treatment.plazi.org/id/095687C6-FF97-FFC9-FF7E-FAF78DA9F8D5
treatment provided by	Plazi (2022-09-05 06:37:34, last updated 2024-11-28 13:50:44)
scientific name	Onthophagus belorhinus
status

Treatment

Key to the O. belorhinus View in CoL species complex, based on major males

(modified from Moctezuma et al. 2020). Note that O. genuinus Kolmann & Solís, 2001 is excluded from this species complex based on the redefinition by Montezuma et al. (2020).

1 Anterior midline of pronotum moderately to strongly impressed................................................ 2

- Anterior midline of pronotum obsolete, Oaxaca (Santa María Chimalapa; Fig. 2 View FIGURE 2 )....................................................................................... O. istmenus Moctezuma, Sánchez-Huerta, & Halffter, 2020 View in CoL

2 Bifurcation of clypeal horn V-shaped, Costa Rica ( Fig. 2 View FIGURE 2 )................... O. grataehelenae Kohlmann & Solís, 2001 View in CoL

- Bifurcation of clypeal horn broadly U-shaped.............................................................. 3

3 Bifurcation of strongly elongate clypeal horn reaching to the gena, with an indentation at the apex; Costa Rica ( Fig. 2 View FIGURE 2 )............................................................................ O. andersoni Howden & Gill, 1987 View in CoL

- Bifurcation of clypeal horn elongate, projecting over the clypeus but not reaching the gena, sinuate or straight without indentation apically......................................................................................... 4

4 Anterior half of pronotum with two lateral concavities and a weak medial-frontal tubercle, Chiapas (Tacaná Volcano; Fig. 2 View FIGURE 2 ).............................................. O. tacanensis Chamé-Vázquez & Sánchez-Hernández View in CoL , new species

- Anterior half of pronotum without concavities and frontal median tubercle formed by two distinct protuberances, central Mexico to El Salvador ( Fig. 2 View FIGURE 2 ).......................................................... O. belorhinus Bates, 1887 View in CoL

References

Howden, H. F. & Gill, B. D. (1987) New species and new records of Panamanian and Costa Rican Scarabaeinae (Coleoptera: Scarabaeidae). The Coleopterists Bulletin, 41, 201 - 224.

Kohlmann, B. & Solis, A. (2001) El genero Onthophagus (Coleoptera: Scarabaeidae) en Costa Rica. Giornale italiano di Entomologia, 49, 159 - 261.

Moctezuma, V., Sanchez-Huerta, J. L. & Halffter, G. (2020) Two new species of the Onthophagus clypeatus species group (Coleoptera: Scarabaeidae: Scarabaeinae). Florida Entomologist, 103, 281 - 287. https: // doi. org / 10.1653 / 024.103.0220