Subfamily Eubrianacinae 



Genus Eubrianax Kiesenwetter, 1874 



Eubrianax edwardsi (LeConte, 1874) . Larvae on or under submerged rocks 

 in California and Oregon streams up to about 6,000 feet; adults 

 along stream banks. 



Subfamily Psepheninae 



Genus Psephenus Haldeman, 1853 

 (Additional species from Arizona are under study. Murvosh and I are 

 describing two new species.) 



Psephenus haldemani Horn, 1870. Larvae on or under submerged rocks in 

 streams, adults on rocks or wood protruding from riffles, at or 

 just above water line on downstream side; from California to British 

 Columbia and northern Idaho at elevations up to about 4,000 feet. 



Psephenus herriaki (DeKay, 1844) . Habitats as above; in streams from 

 central Alabama and Georgia northeast to Maine and Canada and west 

 to eastern Oklahoma, Kansas and Wisconsin, at elevations below 2,500 

 feet. Also on wave-washed shores with suitable rocks, as on the 

 Bass Islands of Lake Erie. 



Psephenus murvoshi Brown, 1970. Habitats as above, in streams of cen- 

 tral Arizona at elevations below 5,000 feet. 



Psephenus texanus Brown and Arrington, 1967. Habitats as above, in 



streams of central and southwestern Texas, at elevations below 2,000 

 feet. These streams are typically clear, with a high calcium content. 



Family PTILODACTYLIDAE (Lacordaire, 1857) 



Genus Anahyoteis Horn, 1880 



Anchyoteis velutina Horn, 1880. Larvae in springs and rapid streams of 

 northern California and adjacent Nevada; adults along or near 

 streams. 



Genus Anahy tarsus Guerin-Meneville, 1843 



Anahytarsus bioolor (Melsheimer, 1846) . In or near streams from Georgia 

 to New York, rare. 



Genus Stenooolus LeConte, 1853 



Stenooolus scutellaris LeConte, 1853. Along streams of central 

 California at elevations up to 4,000 feet. 



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