( Latin: Order Psocoptera)  The names booklice and dust lice are used somewhat indiscriminately. Booklice are light-shy insects that thrive best when the humidity is over 75%. There are several species. Some, such as Liposcelis divinatorius, have no wings and cannot fly, while others, the so-called winged booklice, e.g. Atropus pulsatorius, have small but non-functional wings. […]

Lat.: Order Psocoptera These insects are not related to the true lice. They prefer damp places, such as cellars, damp outside walls, or outhouses, and they may be found in new houses before the walls are dry. They cannot tolerate dryness. A female booklouse can lay a couple of hundred eggs, and under favourable conditions […]