Abstract
Amarochara formicina sp. n. (Canada: New Brunswick), the 26th representative of the genus in the Holarctic region, is described and illustrated. The following synonymy and new combination are proposed: Amarochara freyi (Bernhauer, 1940), comb. n. (ex Ocyusa) = Amarochara splendens Jarrige, 1952, syn. n. Additional records are reported for several species of the Palaearctic and Nearctic regions. The previously unknown aedeagus of A. inquilina (Casey, 1906) is illustrated.
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