Biology:Orizabus isodonoides
| Orizabus isodonoides | |
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Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Family: | Scarabaeidae |
| Genus: | Orizabus |
| Species: | O. isodonoides
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| Binomial name | |
| Orizabus isodonoides Fairmaire, 1878
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| Synonyms | |
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Orizabus isodonoides is a species of beetle occurring in Mexico.
Description
It may be useful to consult a beetle anatomy chart when considering the following technical features distinguishing Orizabus isodonoides from other Orizabus species in the USA (not including Mexican species):[1]
- It has a distinct, transverse fronto-clypeal carina (instead of a tubercle)
- The male's protibiae exhibit unishaped or bisinuate dorsal margins (tibiae with two or three weak lobes)
- The pronotum has a distinctive shape
- Antenna lamellae are relativelly broader, and subovate (in apical view)
- In medium and large males, there's a noticeable anteromedial pronotal tubercle which is separate from the anterior marginal bead and the paramera
- The anterior marginal bead is not angularly wider at the middle
- In males and some females a broad depression usually is evident behind the pronotal tubercle
Range
A 2008 study by Leonardo Delgado stated that Orizabus isodonoides was known in the Mexican states of Chihuahua, Durango, México, Hidalgo, Jalisco, Morelos, Oaxaca, and Puebla.[2] In July 2025 the iNaturalist website documented research-grade observations of Orizabus isodonoides only in the Mexican states of Querétaro, Tlaxcala and México. [3] A 2010 study described the distribution as central, western and northwestern Mexico.[4]
Habitat
Orizabus isodonoides appears to be a highland species. An observation from the state of Chihuahua describes it as occurring in an oak-pine forest at an elevation of 1700m (~5600 ft).[1] The individual featured on this page was found on the exterior wall of a residence in the state of Querétaro at ~ 1880m (~6170 ft).[5]
More pictures
References
- ↑ 1.0 1.1 1.2 Warner, William B. (April 22, 2011), "Review of the genus Orizabus Fairmaire in the United States of America (Coleoptera: Scarabaeidae: Dynastinae)", Insecta Mundi (Gainesville, Florida, USA: Center for Systematic Entomology), https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1680&context=insectamundi, retrieved July 4, 2025
- ↑ Delgado, Leonardo (January 1, 2008). "A New Species of Orizabus (Coleoptera: Scarabaeidae) from Mexico, New Records, and a Revised Key to the Species". Annals of the Entomological Society of America (Entomological Society of America) 101 (1): 53–57. doi:10.1603/0013-8746(2008)101[53:ANSOOC2.0.CO;2]. https://academic.oup.com/aesa/article/101/1/53/8438. Retrieved July 5, 2025.
- ↑ "Orizabus isodonoides". https://www.inaturalist.org/taxa/266998-Orizabus-isodonoides.
- ↑ Ratcliffe, Brett C.; Cave, Ronald D (June 18, 2010), "New species of Orizabus Fairmaire (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini) from Mexico and Guatemala, with a revised key and checklist of the species in the genus", Insecta Mundi (Gainesville, Florida: Center for Systematic entomology): 1–16, https://journals.flvc.org/mundi/article/view/0127/24550
- ↑ "Observation of Orizabus isodonoides". https://www.inaturalist.org/observations/294589491.
Wikidata ☰ Q14868712 entry
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