Japanese Beetle Tachinid vs Pale Brown Hawk Moth

Side-by-side species comparison

Attribute Japanese Beetle Tachinid Pale Brown Hawk Moth
Scientific Name Istocheta aldrichi Theretra nessus
Order Diptera Lepidoptera
Family Tachinidae Sphingidae
Size 5-7 mm 55-75 mm
Habitat Orchards Orchards
Diet Parasites Nectar Feeders
Regions North America, Asia South Asia, Southeast Asia, Australia
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.

Pale Brown Hawk Moth

A sleek hawk moth with uniform brown coloring and darker lateral stripes along the body. It is widespread across tropical Asia and Australasia.

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Did You Know?

Theretra nessus caterpillars undergo dramatic color changes between instars, shifting from green to brown as they mature.