1) Arthropod family 2) Family psocidae 
Psocidae is a family of the insect order Psocoptera, the booklice. Members of this family are recognised by their wing-venation, where the areola postica is fused to the M-vein, giving rise to the so-called discoidal cell. This family is closely related to Myopsocidae. The family is widespread, including New Zealand. Genera include: ==Sources== .....
[n] - a family of small soft-bodied insects that feed on decaying vegetation
family Psocidae noun a family of small soft-bodied insects that feed on decaying vegetation; related to booklice