Phrynus operculatus is a species of tailless whipscorpion in the family Phrynidae.

[1][2][3][4] This species is of medium size, measuring 18–22 mm in total length.

In the female, the gonopods appear with the sclerite relatively short, wide in the base and with the apex narrow and curved towards the ventral surface.

[5] This species, having a wide distribution, seems to have great ecological plasticity.

It has been found under stones, under semi-shed tree bark, and under dry cacti in xerophilous forests.