Northern Rock Crawler vs White-shouldered House Moth

Side-by-side species comparison

Attribute Northern Rock Crawler White-shouldered House Moth
Scientific Name Grylloblatta campodeiformis Endrosis sarcitrella
Order Grylloblattodea Lepidoptera
Family Grylloblattidae Oecophoridae
Size 15-30 mm 15-21 mm wingspan
Habitat Indoors Indoors
Diet Omnivores Seed Feeders
Regions North America Cosmopolitan
Conservation Near Threatened Least Concern

Northern Rock Crawler

A rare ice-dwelling insect that lives on glaciers and snowfields at near-freezing temperatures. Handling one with bare hands can overheat and kill it.

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Did You Know?

Rock crawlers are so cold-adapted that a human hand is hot enough to kill them — they prefer temperatures between 1-4C and die above 20C.

White-shouldered House Moth

A small greyish moth with a conspicuous white head and thorax that is common in buildings year-round. It is found worldwide as a minor household pest.

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Did You Know?

It is one of the few moths that can breed continuously indoors throughout the year without a dormant phase.