Elmomorphus parvulus is a species of beetle of the family Dryopidae. This species is found in Thailand.

Description Adults reach a length of 2.41–2.62 mm (males) and 2.60–2.81 mm (females). Their body is elongate oval and integument black, while the mouthparts, antennae, trochanters and tarsi are reddish brown and the remaining parts of the legs are dark brown.

Etymology The species name is derived from Latin parvulus (meaning very small) and refers to the very small size of the species compared to the most similar congeners.Taxonomic revision of the genus Elmomorphus Sharp, 1888.II. Redescription of the genus and review of the species from India, Nepal, Bhutan, Myanmar, China, Thailand, Laos, Cambodia, and Vietnam (Coleoptera: Dryopidae)

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