虱 - lice, vermin

Japanese fish louse (Argulus japonicus)

whitefly (Aleyrodidae spp.)

one by one; thoroughly; exhaustively; with a fine-tooth comb

body louse (Pediculus humanus humanus); body lice

psylla (any insect of family Psyllidae); psyllid; jumping plant louse

mulberry psyllid (Anomoneura mori)

lousy; lice-ridden; covered in lice

Pediculus humanus (species of louse that infests humans); body louse; body lice; head louse; head lice

head louse (Pediculus humanus capitis); head lice

very thorough search (for contraband, escaped convict, etc.); fine-tooth-comb search; exhaustive search; scouring

louse (esp. a sucking louse); lice

bed bug (Cimex lectularius); bedbug