Gyrophaena caseyi Seevers, 1951

Brunke, Adam J., Klimaszewski, Jan, Dorval, Julie-Anne, Bourdon, Caroline, Paiero, Steven M. & Marshall, Stephen A., 2012, New species and distributional records of Aleocharinae (Coleoptera, Staphylinidae) from Ontario, Canada, with a checklist of recorded species, ZooKeys 186, pp. 119-206: 136

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Gyrophaena caseyi Seevers, 1951

New Ontario Record

Gyrophaena caseyi Seevers, 1951   New Ontario Record Figs 31106-108Map 31

Material Examination.

CANADA: ON:Northumberland Co., Peter’s Woods PNR, 44°7'27"N, 78°2'21"W, forest, gilled mushrooms, 12.ix.2011, A. Brunke, 1 (DEBU).


Canada: ON, QC, NB; USA: MI, NC, NY, PA ( Seevers 1951; Campbell and Davies 1991; Webster et al. 2012). Native.


This species was erroneously reported from New Brunswick by Klimaszewski et al. (2009) based on misidentified specimens of Gyrophaena nanoides   Seevers. Gyrophaena caseyi   and Gyrophaena nanoides   are very similar externally except that the former has antennomeres 5-10 distinctly transverse (elongate to quadrate in the latter) and antennomere 9 is approximately as long as 10 (longer in Gyrophaena nanoides   ). For a habitus image of Gyrophaena nanoides   see Klimaszewski et al. (2009) (labeled as Gyrophaena caseyi   ). The median lobe of the aedeagus in lateral view is shaped slightly differently (Fig. 106 versus Fig. 39 in Klimaszewski et al. 2009 (as Gyrophaena caseyi   )).