Bionychiurus tamilensis is a species of the family Onychiuridae, a group of springtails.

[1] Bionychiurus tamilensis has a dorsal pseudocellus (pso) formula as 32/133/33343 and a ventral pso formula as 11/011/11121.

It was recorded from the Nilgiri Hills, Nilgiri Biosphere Reserve of Western Ghats, India.

The status as new species of the genus Bionychiurus was confirmed molecular studies.

[2]