About Yanbaru Long-armed Scarab
An extremely rare scarab beetle endemic to the Yanbaru forests of Okinawa. Males have greatly elongated forelegs used in mating displays.
Did You Know?
It was only discovered in 1983 and is protected as a Japanese national natural monument.
How to Identify Yanbaru Long-armed Scarab
Yanbaru Long-armed Scarab (Cheirotonus jambar) belongs to the order Coleoptera, family Euchirinae. Adults typically measure 45-65 mm.
Yanbaru Long-armed Scarab Habitat
Yanbaru Long-armed Scarab is found in forests habitats, particularly across Japan (Okinawa). This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
Yanbaru Long-armed Scarab Diet and Feeding
Yanbaru Long-armed Scarab feeds on plant sap by piercing stems and leaves with specialised mouthparts. Sap feeders extract nutrients directly from the plant's vascular system.
Where Is Yanbaru Long-armed Scarab Found?
Yanbaru Long-armed Scarab can be found in Japan (Okinawa), where it inhabits forests environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where Yanbaru Long-armed Scarab can be found
Is Yanbaru Long-armed Scarab Dangerous?
Yanbaru Long-armed Scarab is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.
Yanbaru Long-armed Scarab Role in Nature
Yanbaru Long-armed Scarab is part of the food web as a primary consumer, feeding on plant material. It serves as an important food source for birds, bats, amphibians, and other insectivores, connecting plant energy to higher trophic levels.
Seasonal Activity
Frequently Asked Questions About Yanbaru Long-armed Scarab
What does Yanbaru Long-armed Scarab look like?
The Yanbaru Long-armed Scarab typically measures 45-65 mm.
Where is Yanbaru Long-armed Scarab found?
The Yanbaru Long-armed Scarab is found in Japan (Okinawa) and typically inhabits forests environments.
What does Yanbaru Long-armed Scarab eat?
The Yanbaru Long-armed Scarab feeds on plant sap by piercing stems and leaves.
Is Yanbaru Long-armed Scarab dangerous to humans?
The Yanbaru Long-armed Scarab is generally harmless to humans. It does not bite or sting and poses no significant health risk.
Is Yanbaru Long-armed Scarab endangered?
The Yanbaru Long-armed Scarab is currently classified as Critically Endangered by conservation assessments. Habitat loss and environmental changes are among the primary threats to its population.
What is an interesting fact about Yanbaru Long-armed Scarab?
It was only discovered in 1983 and is protected as a Japanese national natural monument.
Cite This Page
APA:
InsectDiscover. (2026). Yanbaru Long-armed Scarab (Cheirotonus jambar). Retrieved from https://insectdiscover.com/insect/yanbaru-long-armed-scarab
MLA:
"Yanbaru Long-armed Scarab." InsectDiscover, https://insectdiscover.com/insect/yanbaru-long-armed-scarab.