Phidippus mystaceus

Phidippus mystaceus is a species of jumping spider that is found in North America. Females grow to about 1 cm in body length.

Etymology
The species name is derived from the Ancient Greek mystax, meaning "moustache", which the females of this species feature. An older synonym of the species is P. asinarius, referring to the markings above the eyes that look similar to donkey ears.