Keywords: FMIB 38357 Pentagenia vittigera Walsh; nymph.jpeg check categories 26 August 2015 2 Pentagenia vittigera Walsh; nymph Nymph from above with the gills on the right pushed aside to show the markings of the abdomen Subject Pentagenia Mayflies--Anatomy Tag Insects 1921 Cite book Burrowing Mayflies of Our Larger Lakes and Streams Needham James G Washington DC Government Printing Office 1921 Bulletin of the United States Bureau of Fisheries vol 36 1917-1918 Plate LXXIV-19 Creator James George Needham PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 38357 Images from the Freshwater and Marine Image Bank to check James George Needham Pentagenia |