Both males and females of Diores youngai have a total length of 3.33 mm. The prosoma is entirely medium brown in both sexes. The opisthosoma is sepia, with the dorsum being pale and having a large dark sepia scutum in males. Females have similar coloration to males.
Ecology
Diores youngai are free-living ground-dwellers that construct igloo-shaped retreats with small stones, characteristic behavior of the genus Diores.