
Caeciliusetae is an infraorder of Psocoptera in the suborder Psocomorpha. There are about 6 families and more than 1,300 described species in Caeciliusetae.

Amphipsocidae is a family of hairy-winged barklice in the order Psocoptera. Most species are 3.0-4.5 mm long and have many setae (hairs) on the veins and margin of the forewing. The main veins of the forewing are usually lined with two rows of setae. Like the other members of the infra-order Caeciliusetae, they have a broad, flat labrum, with well defined edges.

Paracaeciliidae is a family of bark lice in the order Psocodea. There are about 5 genera and more than 100 described species in Paracaeciliidae.

Polypsocus is a genus of hairy-winged barklice in the family Amphipsocidae. There are more than 20 described species in Polypsocus.

Polypsocus corruptus is a species of hairy-winged barklouse in the family Amphipsocidae. It is found in Central America and North America.

Teliapsocus is a genus of shaggy psocids in the family Dasydemellidae. There are at least two described species in Teliapsocus.

Teliapsocus conterminus is a species of shaggy psocid in the family Dasydemellidae. It is found in North America.