🪐 View in 3D Galaxy 📏 View on 3D Scale Stage

🧬 Biological Classification (Kingdom to Species)Polyphylla laticollis

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Scarabaeidae

Genus

Polyphylla

Species

Polyphylla laticollis

📏 True-scale comparison (1 m = 1 m) against a 1.75 m humanLength 3~3.7cm

🔍 Zoomed View — Same scale as a credit card & 2.65cm coin

· Grid units represent actual meters (m); human and animals are drawn to the exact same scale with original silhouette aspect ratios preserved.
· When a size range is recorded (e.g. 1–1.6m), the lower bound is used for scale comparison.
· Polyphylla laticollis silhouette: PhyloPic — Edwin Price · CC BY 4.0 (Hylamorpha elegans)
· Human silhouette: PhyloPic — NASA · Public Domain Mark 1.0

• Length vs. 1.75 m human: 0.02× Compare with other species →

Insecta🌿 Herbivore

Polyphylla laticollis

Polyphylla laticollis (Polyphylla laticollis · Polyphylla laticollis)

🛡️ Conservation Status (IUCN Red List)NE (Not Evaluated)

Not Evaluated (NE) on the IUCN Red List yet.

🇰🇷 Class I endangered wildlife (Korea) (subspecies Polyphylla laticollis manchurica)

Geological Era

Extant

Diet

Herbivore

Length · Height

3~3.7cm · No data

Mass · Top Speed

No data · No data

Habitat & Fossil Locality

Grasslands around riverside farmland and sandy riverbanks

💡 Everyday Comparisons for Size, Mass & Speed

💡 A maximum body length of 37 mm is about 1.4 times the diameter of a Korean 500-won coin (26.5 mm) (Comparison).
💡 Shrinking larval habitats along rivers and streams is the reason for its population decline. How riverside grasslands and sandbars are used and maintained is directly tied to the fate of this beetle.

Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.

#수염풍뎅이#Polyphylla laticollis

📖 1. Overview

Polyphylla laticollis is a chafer living in riverside grasslands and sandy ground, and is the largest species of Melolonthidae in Korea. It is a Class I endangered wildlife species in Korea.

🦴 2. Anatomy & Morphology

It has a broad oval body 30–37 mm long, dark reddish brown with grayish-white or yellowish-white scales forming mottled patterns on the back. The club at the tip of the antenna is long, consisting of 7 segments in males and 5 in females.

🔍 3. Ecology & Behavior

It takes 4 years from egg to adult, overwintering each year as a larva; larvae pupate in June and adults emerge mainly in June–July. Underground, the larvae gnaw on the roots of riverside plants such as reeds.

🇰🇷 4. Connection to Korea

It is a Class I endangered wildlife species (Korea; listed at the subspecies level on the National List of Species of Korea). Formerly found across the country in places such as Paju in Gyeonggi-do, Seoul, Jeju Island, and Nonsan in Chungcheongnam-do, it is now confirmed only in Nonsan and Buyeo in Chungcheongnam-do and Cheongju in Chungcheongbuk-do.