New State Stonefly (Plecoptera) Records For Pennsylvania, With Additional Records And Information On Rare Species Author Earle, Jane I. text Illiesia 2009 5 16 169 181 journal article 6786 10.5281/zenodo.4759416 07c83cbb-d592-43c1-894e-9fbcd0f48339 1854-0392 4759416 Perlinella drymo (Newman) is the less commonly collected of the two Pennsylvania species of Perlinella . Both adults and nymphs are extremely elusive. Only two previous Pennsylvania adult records exist, one from Northampton County in 1931 and one from Cumberland County in 1949 ( Masteller 1996 ). Perlinella drymo is a widespread North American species found from the Canadian Maritimes south to Florida and west to Minnesota and Texas . New records: LUZERNE: (S) Nescopeck Creek, old foot bridge at lower end of Nescopeck State Park, 20 April 2001 , 1 nymph (MW); MONTGOMERY: (D) unnamed tributary to Schuylkill River near Spring City, 9 February 2005 , 1 nymph (MB). Based on these records, P. drymo appears to prefer smaller cooler creeks than P. ephyre (Newman) , which inhabits large warm water creeks and rivers in Pennsylvania .