''Ellychnia californica'', known generally as the California glowworm or western firefly, is a species of firefly in the

beetle Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 describ ...

family Lampyridae. It is found in North America.

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