Paratrichius doenitzi(Ootorafu Hanamuguri)

Introduction

Ootorafu Hanamuguri is a species of flower chafer native to Japan.
Adults appear mainly from early summer to summer; however, the active period remains short, so encounters are uncommon.

Appearance

Adults measure approximately 12–16 mm in length.
Males show bold yellow-and-black patterns, while females appear darker and more subdued.
In addition, like other flower chafers, this species has fan-shaped antennae.

Habitat & Distribution

This species occurs in Honshu, Shikoku, and Kyushu.
It mainly inhabits mountainous to low mountain areas and often appears along forest edges or mountain trails where flowers bloom during summer.

Behavior

Adults actively move during the daytime and frequently fly around flowers.
However, they quickly take off when disturbed, so close observation requires patience.

Diet

Adults gather on flowers and feed mainly on pollen.
Meanwhile, larvae develop in decayed wood and consume decomposing organic matter.

Reproduction

Larvae grow inside decayed wood and later emerge as adults.
At present, detailed information on breeding behavior and developmental timing remains limited.

Conservation

Local conservation status varies by region, and habitat conditions differ across areas.
Therefore, maintaining suitable forest environments plays an important role in supporting this species.

Author’s Impression

Ootorafu Hanamuguri has distinctive and eye-catching patterns.
Because males and females show different markings, comparing them during observation makes the experience more enjoyable.