[1] The thallus of Micarea termitophila is corticate and plicate with a greenish hue, approximately 50 mm thick, and has a dull and roughened surface texture.

[1] Apothecia (fruiting bodies) are appressed, emerging between the thallus granules and often becoming prominent, measuring 0.2–0.3 mm in diameter.

The hymenium is clear, ranging from 30 to 50 μm in height and turns violet when treated with potassium hydroxide (KOH) solution, especially noticeable in the upper parts.

Pycnidia are found on the same thallus, often grouped separately, with black, bacilliform conidia measuring about 4–5 by 1 μm.

[1] At the time of its original publication, Micarea termitophila was known only to occur only in its type locality in Brazil, where it grows on termite nests attached to trees within primary rainforests.