New Zealand Glowworm vs Japanese Beetle Tachinid

Side-by-side species comparison

Attribute New Zealand Glowworm Japanese Beetle Tachinid
Scientific Name Arachnocampa luminosa Istocheta aldrichi
Order Diptera Diptera
Family Keroplatidae Tachinidae
Size 30-40 mm (larvae) 5-7 mm
Habitat Caves Orchards
Diet Fungus Feeders Parasites
Regions Oceania North America, Asia
Conservation Least Concern Least Concern

New Zealand Glowworm

A bioluminescent fungus gnat larva endemic to New Zealand. Produces blue-green light to lure prey into sticky silk threads dangling from cave ceilings.

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Did You Know?

These glowworms use a completely different bioluminescent chemistry from fireflies — their luciferin is unique in the animal kingdom, derived from xanthurenic acid.

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.