Japanese Beetle Tachinid vs Musk Longhorn

Side-by-side species comparison

Attribute Japanese Beetle Tachinid Musk Longhorn
Scientific Name Istocheta aldrichi Aromia bungii
Order Diptera Coleoptera
Family Tachinidae Cerambycidae
Size 5-7 mm 22-38 mm
Habitat Orchards Orchards
Diet Parasites Fruit Feeders
Regions North America, Asia China, Korea, Mongolia; invasive in Japan, Italy, Germany
Conservation Least Concern Least Concern

Japanese Beetle Tachinid

A parasitic fly introduced from Japan to North America specifically for Japanese beetle control. Females lay eggs on the beetle's thorax.

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Did You Know?

White eggs visible on a Japanese beetle's thorax are a telltale sign of parasitism by this fly.

Musk Longhorn

A large and colorful cerambycid with a bright red pronotum and metallic dark blue-black elytra. Native to East Asia, it has recently invaded parts of Europe and Japan. It is a serious pest of stone fruit trees including cherry and peach.

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Did You Know?

Adults emit a strong musky fragrance from thoracic glands, detectable from several meters away.