n.1.(Zool.) Any insect of the genus Perla, or family Perlidæ. See Stone fly, under Stone.
References in periodicals archive ?
cascadae at Mack Creek consumed philopotamid caddis flies and ostracods at levels well above their abundance, and heptageniid mayflies and perlid stoneflies well below their abundance (Table 3).
Coexistence of perlid stoneflies (Plecoptera): Predictions from multivariate morphometrics.
Influence of rainbow trout (Oncorhynchus mykiss) on density and feeding behavior of a perlid stonefly.
However, Nanocladius branchicolus was previously reported in symphoretic associations with nymphs of the perlid stoneflies Acroneuria abnormis (Newman) (Claassen, 1931; Johannsen, 1937, as Spaniotoma sp.
Hunting behaviour of the perlid stonefly nymph Dinocras cephalotes (Plecoptera) under different light conditions.