Locust Borer vs Miyama Sawtooth Stag Beetle

Side-by-side species comparison

Attribute Locust Borer Miyama Sawtooth Stag Beetle
Scientific Name Megacyllene robiniae Prosopocoilus dissimilis
Order Coleoptera Coleoptera
Family Cerambycidae Lucanidae
Size 14-22 mm 25-55 mm
Habitat Farmland Forests
Diet Pollen Feeders Sap Feeders
Regions Eastern and Central North America East Asia, Japan (Ryukyu Islands)
Conservation Least Concern Least Concern

Locust Borer

A striking yellow-and-black wasp mimic that attacks black locust trees in North America. Adults appear in autumn and are commonly found on goldenrod flowers. Larval boring weakens locust trunks and can cause breakage.

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Did You Know?

Adults synchronize their emergence with goldenrod bloom, making autumn fields their primary mating arenas.

Miyama Sawtooth Stag Beetle

An elegant stag beetle found in southern Japan with distinctive serrated mandibles. The species occurs in the subtropical forests of the Ryukyu Islands. Males show considerable size variation.

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Did You Know?

The Ryukyu Islands have produced many unique stag beetle species due to their isolation, making them a hotspot for lucanid diversity.