Gymnoloma suturalis is a species of beetle of the family Scarabaeidae. It is found in South Africa (Eastern Cape, Western Cape).
Adults reach a length of about . They are black, with the elytra reddish brown or chocolate-brown and opaque, and with the outer and basal margins of the pronotum with a broad band of sub-flavescent scales. The elytra have a moderately broad band of scales along the suture, and a narrow line on the outer margin. The pygidial part and abdominal segments are densely clothed with yellowish-white scales leaving a conspicuously denuded space round the stemmata. The legs are reddish.