J. Alba-tercedor et Wp. Mccafferty, Acentrella feropagus, new species (Ephemeroptera : Baetidae): Formal new name for North American A-lapponica sensu Morihara and McCafferty, ENT NEWS, 111(2), 2000, pp. 137-139
A new name Acentrella feropagus, new species, is proposed for the North Ame
rican baetids that were previously known as Acentrella lapponica or Baetis
lapponicus and which had been described in the larval stage by Morihara and
McCafferty. The species is apparently confined to northern Canada and Alas
ka. Characteristics of the femora and tibiae as well as labial palps may be
used to differentiate larvae of A. feropagus from those of the European sp
ecies A. lapponica.