The Okinawa horseshoe bat occurs on the Okinawa Islands. The Ministry of the Environment profile for the subspecies R. p. pumilus says it detects the wingbeats of flying insects when feeding.
The Ministry profile gives a head-and-body length of 38–46 mm and a forearm length of 38–42 mm for R. p. pumilus.
The Ministry profile says this bat detects the wingbeats of flying insects to catch them.
An extinction-risk assessment has not been added yet.