Serratia marcescens

Rapid DNA mutations
Serratia marcescens is motile pink-pigmented bacterium an opportunistic pathogen that is known to infect insects, nematodes, and mammals.
It is a potent chitinase producer which may help it breach the insect cuticle.
It also exhibits swarming motility, which might suggest an ability to evade phagocytosis and
establish a disseminated infection
in the hemolymph