2004
DVBID, BZB, Entomology and Ecology Activity, Vector Ecology & Control Laboratory, Fort Collins, CO.

This photograph depicts an adult male Oropsylla Montana flea, formerly known as Diamanus Montana.

This flea is a common ectoparasite of the ground squirrel, Spermophilus spilosoma, and in the western United States, is an important vector for the bacterium Yersinia pestis, the pathogen responsible for causing plague.