l(3)SG371 and l(3)SG381 were used for complementation tests with Df(3R)BSC24, Df(3R)BSC38, Df(3R)by10, and Df(3R)M-Kxl. All combinations complemented for lethality. Some of the l(3)SG381/Df(3R)by10 adults had reduced, rough eyes with distortion of the head capsule.