For example, a 2010 analysis found Spelaeorhynchidae and Spinturnicidae to be more closely related to Eviphidoidea than to Dermanyssoidea.

[3] Like mites in general, Dermanyssoidea have a pair of chelicerae, but the size and shape of cheliceral segments and digits is highly variable across the superfamily.

[4] Spelaeorhynchidae and Spinturnicidae are highly modified morphologically for living on bats, with Spelaeorhynchus praecursor (the first known species of Spelaeorhynchidae) initially being mistaken for a tick due to its appearance.

[5] This superfamily engages in various forms of parasitism on a wide range of hosts.

[7] A 2010 analysis suggests that parasitism evolved independently at least eight times within Dermanyssoidea.