Elmomorphus sausai is a species of beetle of the family Dryopidae. This species is found in Vietnam.
Adults reach a length of 3.07âÂÂ3.15 mm (males) and 3.15âÂÂ3.28 mm (females). Their body is ovate and black, while the mouthparts, antennae, trochanters, proximal portions of the femora, and tarsi are reddish brown.
The species is named in honour of Ondrej à  auà ¡a, a Slovak entomologist who collected the holotype.