Pterolamia quadricristata is a species of beetle of the Cerambycidae family. This species is found in China (Hunan).
Adults have a mostly dark brown body, with dark brown and greyish-yellow hairs. These hairs are greyish-brown on the elytra.
The name of the species is derived from Latin quadri- and cristata and refers to the elytra have four conspicuously raised short ridges near the base and the middle.