Known from Pinnacles, Hastings and Santa Lucia Preserve. Difficult to tell apart from California myotis without skull comparison. Breeding occurs in fall, sperm are stored over winter with ovulation and conception in spring. Hibernates in caves. A single young is born, with births Jun-Jul.
Females form maternity roosts in rock crevices and caves, and leave young hanging while they forage.
May roost under old bark. Can detect mist nets, and can hover delicately in place. Known from Pinnacles and Santa Lucia Preserve.