Branchinecta constricta Rogers, 2006

New records. IDAHO: Cassia Co.: City of Rocks National Reserve, Bath Rock, 8 April 2007, M. Vinson, Det. D.C. Rogers, DCR-770. Two small (1m diameter) rock pools on granite spire, Indian Grove, City of Rocks National Reserve, 42.10289810°N, 113.72731984°W, 25 June 2008, E. Starkey. Owyhee Co.: Crab Springs Butte, 12 June 2008, T. Weekley, det. D.C. Rogers, M. A. Hill, DCR-735.

Comments. This species was previously reported as endemic to Wyoming (Rogers 2006). We report the first records of this species from Idaho. The Cassia County records are similar to many of the Wyoming records in that the pool is a basin in rock, without any vegetation. This record represents a range extension of roughly 600 km. The Owyhee County record is a seasonal wetland in volcanic clays and represents a range extension of approximately 950 km.