Micromus posticus is a species of brown lacewing in the family Hemerobiidae.

[2] Both larvae and adults feed on aphids.

[1] Micromus posticus measures between 7 and 9.5 mm from length to wingtip.

[3] Micromus posticus can be identified by the inner gradate veins on the forewing, which are separated by a distance less than or equal to their length.

They also lack conspicuous markings on the face.