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Show 94 Distribution Ameletus similor is boreal a western North American species previously unreported from Idaho. specimens from Record. single locality. a VALLEY Co.: - examined have I Lick Ameletus Creek, 4-VIII-64, (A), SDS, (UI). sparsatus McDunnough (Figure 16) Ameletus McDunnough (1931a) and several female (1935) described and Taxonomy A ted the Henry's Fork nymphs agree obviously marked, a regardless the of collected in Alberta. from reared of species from a male McDunnough specimens. this at very well with the Younger nymphs, species, same age, nymphs (Snake River) variation due of this nymphs series McDunnough (1935). and imagos described Biology large from mature 1931a:89. sparsatus McDunnough, do to show the are age distinct species Macks Inn. collec The fully description by in the very of were pale the collection same and nymph. subcutaneous incompletely All nymphs, ganglionic markings. Nymphs of this moderately flowing species usually rivers and streams occur with in larger, summer daytime |