[2] The specific name comes from a mixture of micro and unicolor, referring to the diminutive size of the species (compared to A.

The dorsal shield of the prosoma, the pedipalps and leg II-IV are greyish-tan, with distal segments lighter.

Femur I light greyish-tan, patella I greyish-brown, tibia, metatarsus and tarsus I orangish-red.

Dorsal shield of prosoma, opisthosoma, pedipalps, and legs yellowish-brown, head region slightly darker.

Abdomen yellowish-brown with faint purple pigment, cardiac mark weakly indicated as pale longitudinal band along midline.

It lives in a cool and humid climate, under a dense canopy of Quercus, Acer and Betula.

The antrodiaetid makes its burrows under the bases of overhanging tree roots to prevent flooding.