Orizabus isodonoides
Species of beetle
From Wikipedia, the free encyclopedia
Orizabus isodonoides is a species of beetle occurring in Mexico.
| Orizabus isodonoides | |
|---|---|
| |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Suborder: | Polyphaga |
| Infraorder: | Scarabaeiformia |
| Family: | Scarabaeidae |
| Genus: | Orizabus |
| Species: | O. isodonoides |
| Binomial name | |
| Orizabus isodonoides Fairmaire, 1878 | |
| Synonyms | |
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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]
