1. deathwatch(n = noun.animal) book louse, booklouse, liposcelis divinatorius - minute wingless psocopterous insects injurious to books and papers;
is a kind of psocopterous insect
is a member of genus liposcelis, liposcelis
has particulars: common booklouse, trogium pulsatorium
2. deathwatch(n = noun.animal) deathwatch beetle, xestobium rufovillosum - bores through wood making a ticking sound popularly thought to presage death;
is a kind of beetle
is a member of anobiidae, family anobiidae