occurs (regularly, as a native taxon) in multiple nations

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

Global Range: (>2,500,000 square km (greater than 1,000,000 square miles)) This is the most widespread species of burrowing mayflies in North America.

Non-Migrant: No. All populations of this species make significant seasonal migrations.

Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).

Locally Migrant: No. No populations of this species make annual migrations of over 200 km.

Note: For many non-migratory species, occurrences are roughly equivalent to populations.

Estimated Number of Occurrences: > 300

Comments: This species was recently reported from a few southern river sites in New Hampshire (Chandler et al., 2006). It was recently confirmed in Washington in the Snake River, Benton Co.; Lake Chelan, Chelan Co.; Tochet River, Columbia Co.; and historically in Spokane, Spokane Co. (McCafferty and Meyer, 2007). In Oregon, it occurs in Clackamas, Clatsop, Douglas, Gilliam, Klamath, Lane, Linn, Multnomah, Polk, and Umatilla Cos. (Meyer and McCafferty, 2007). In South Dakota, it occurs in Bon Homme, Brule, Clay, Corson, McCook, Meade, Moody, Turner, and Yankton Cos. (Guenther and McCafferty, 2008). In Washington, it occurs in Benton, Chelan, Columbia, and Spokane Cos. (Meyer and McCafferty, 2007). It was recently documented in the Humboldt River (just below the confluence of the North Fork), Nevada (Baumann and Kondratieff, 2000). In South Carolina, it occurs in Aiken, Anderson, Bamberg, Barnwell, Berkeley, Colleton, Dorchester, Florence, Greenville, Hampton, Lexington, McCormick, Oconee, Pickens, Saluda, Spartanburg, and York Cos. (McCafferty and Meyer, 2008). McCafferty et al. (1997) cited occurrences in Oklahoma from Mayes Co. It was recently found in Fort Sill, Lawton, Camanche Co. Oklahoma (Zuellig et al., 2006). In California, it occurs in Butte, Contra Costa, El Dorado, Fresno, Glennk Kern, Kings, Lake, Lassen, Madera, Merced, Modoc, Placer, Sacramento, San Bernardino, Shasta, Siskiyou, Stanislaus, Sutter, Trinity, Tulare, Tuolumne, Yolo, and Yuba Cos. (Meyer and McCafferty, 2008). It has been documented in South Milford, Nova Scotia (Jacobus and McCafferty, 2001).

Univoltine life history with adult emergence peaking in August (Lobinske et al., 1996.

Canada

Rounded National Status Rank: N5 - Secure

United States

Rounded National Status Rank: N5 - Secure

Rounded Global Status Rank: G5 - Secure

Reasons: This is the most widespread species of burrowing mayflies in North America.