- A division of parasitic hemipterous bugs, like the real lice. See Illust. in Appendix.
- Identical To Pediculidæ.
- Lice proper, as a suborder or any other superfamily band of degraded parasitic hemipterous insects, apterous and ametabolous, with small indistinctly segmented thorax, increased stomach, and mandibulate mouth. See Anoplura, Mallophaga, and louse.