Isoperla richardsoni Frison

DeWalt, R. Edward & Grubbs, Scott A., 2011, Updates To The Stonefly Fauna Of Illinois And Indiana, Illiesia 7 (3), pp. 31-50 : 46

Isoperla richardsoni Frison .

This species is known from Iowa east to Connecticut ( DeWalt et al. 2010). Described initially from Illinois ( Frison 1935), it has since been extirpated from the state ( DeWalt et al. 2005). It has not been reported from Indiana, but was listed as a likely species to find with more collecting in the northern portion of the state ( Grubbs 2004). We have located specimens collected in Indiana, representing a new state record, but we have yet contemporaneous material.

IN, Monroe Co. Bloomington, [39.16528, -86.52639], 5/3/1938, Tinsley, ♀ ( CNC) ; Pike Co., East Fork White River , Rogers , [38.5391, -87.2233], 4/16/1936, H.H. Ross, C.O. Mohr, 5 N ( INHS) ; same but T.H. Frison, 4/21/1936, C.O. Mohr, ♂ ( CNC) ; same but C.O. Mohr, B.D. Burks, 6/2/1936, ♀ ( CNC) .