Perlodes dispar (Rambur 1842)

Boumans, Louis, 2011, The Plecoptera Collection At The Natural History Museum In Oslo, Illiesia 7 (25), pp. 280-290 : 284

Perlodes dispar (Rambur 1842)

Oslo, Sørkedalselva, Langlielva , 25.ii.1969, 1 nymph, leg. Smestad [slide marked P1669 with nymphal cercus, leg and maxilla+; Akershus, Søndre Høland , 1♂ [slide with no further labelling, bearing male subanal lobe and cerci; the municipality Søndre Høland existed between 1924 and 1966+.

This species is widely distributed and common in Europe ( Zwick 2004). The north-western border of its distribution lies in south-eastern Norway, where it occurs in shallow streams with a high summer temperature ( Lillehammer 1988:67). There are relatively many observations of this species in southwestern Sweden (Swedish biodiversity information portal artportalen.se, last accessed 25 August 2011). The NHM contains no complete specimens. Artskart includes two collection-based records from the province of Troms. As these collection sites are far from the known distribution of this species ( Lillehammer 1985, 1988), the identification of these specimens should be checked.