Diamesa sonorae Willassen

Diamesa sonorae Willassen, 1986: 125; Ashe & O’Connor 2009: 284.

Remarks. The species has been described and known so far only by one male and two females from North America (California), is close related to D. alpina and requires additional revision, including the use of barcoding.

Distribution. Nearctic species, known only from Sonora Pass in California (Ashe & O’Connor 2009).