Trombiculidae

noun plural

Trom·​bi·​cu·​li·​dae ˌträm-bə-ˈkyü-lə-ˌdē 

: a large and widely distributed family of mites whose nymphs and adults feed on early stages of small arthropods but whose larvae include the chiggers and are parasites on terrestrial vertebrates including humans

trombiculid

träm-ˈbik-yə-ləd 

adjective or noun