Lesser Grain Borer vs Meal Moth

Side-by-side species comparison

Attribute Lesser Grain Borer Meal Moth
Scientific Name Rhyzopertha dominica Pyralis farinalis
Order Coleoptera Lepidoptera
Family Bostrichidae Pyralidae
Size 2-3 mm 10-14 mm body; 18-30 mm wingspan
Habitat Gardens Indoors
Diet Seed Feeders Seed Feeders
Regions Worldwide tropical and subtropical regions Worldwide
Conservation Not Evaluated Least Concern

Lesser Grain Borer

A cylindrical dark brown beetle that bores into whole grain kernels, reducing them to powder. It is especially destructive in warm tropical grain stores.

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Did You Know?

It produces a distinctive sweet, musty odor that can taint infested grain.

Meal Moth

A distinctive moth with olive and reddish-brown banded wings that infests stored grain and flour. Larvae live in silken tubes within infested food products.

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Did You Know?

Its larval silk tubes can form dense mats in stored grain, binding the product into solid masses.