Species: Pisidium insigne

G - 200,000-2,500,000 square km (about 80,000-1,000,000 square miles) - G - It is mainly a western species found as far north as British Columbia and as far south as Arizona and New Mexico but it is also disjunct from Prince Edward Island south to New York and Michigan; including Canada in British Columbia, Ontario, and Prince Edward Island; and in the U.S. in Arizona, California, Colorado, Idaho, Maine, Michigan, Montana, Nevada, New Mexico, New York, Oregon, Pennsylvania, Washington, and Wyoming (Mackie et al., 2007).