Elmomorphus calvusElmomorphus calvus is a species of beetle of the family Dryopidae. This species is found in China and Vietnam.DescriptionAdults reach a length of 3.17–3.35 mm and 3.15–3.45 mm. Their body is ovate and black, except for reddish brown mouthparts, antennae, trochanters and tarsi, and brown proximal portions of the tibiae.EtymologyThe species name is Latin for hairless and refers to the glabrous dorsal surface.