Phileurus
Phileurus
Classification
- Phylum: Arthropoda
- Subphylum: Hexapoda
- Class: Insecta
- Order: Coleoptera
- Suborder: Polyphaga
- Superfamily: Scarabaeoidea
- Family: Scarabaeidae
- Subfamily: Dynastinae
- Tribe: Phileurini
- Genus: Phileurus
Pronunciation
How to pronounce Phileurus: /fɪˈlɛʊrəs/
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Images
Summary
Phileurus is a genus of rhinoceros beetles in the family Scarabaeidae, consisting of over 20 described species, primarily found from the US to South America. They are notable for their large size and distinct pronotal features.
Physical Characteristics
Large, rather flattened; 17-38 mm in length. Pronotum has longitudinal groove, usually with a depression at the front and a tubercle there. Stridulating organs are on the under-surface of the elytra along the side margins.
Identification Tips
Distinguished by the structure of the pronotum which features a longitudinal groove and tubercles. Ph. valgus has front-most 'horns' that are just tubercles, while Ph. truncatus is larger and lacks prominent horn structures.
Habitat
Under bark of rotting trees; adults come to lights at night.
Distribution
From the central United States to southern South America, with two species ranging into the US: Ph. truncatus in the southeastern US and Ph. valgus north to Indiana.
Diet
Typically feeds on decaying organic material as a detritivore, but specific dietary preferences may vary by species.
Ecosystem Role
As detritivores, species of Phileurus play a role in the decomposition process, helping to recycle nutrients back into the ecosystem.
Collecting Methods
- Light traps
- Hand collection under bark of rotting trees
Preservation Methods
- Pinned specimens
- Ethanol preservation
Misconceptions
Often confused with other rhinoceros beetles due to similar morphology; they are harmless and do not pose any threat to humans.
Tags
- beetles
- Scarabaeidae
- Phileurus
- rhinoceros beetles
- Coleoptera