Octotemnus glabriculus (Gyllenhal, 1827)*

Lopes-Andrade, Cristiano, Webster, Reginald P., Webster, Vincent L., Alderson, Chantelle A., Hughes, Cory C. & Sweeney, Jon D., 2016, The Ciidae (Coleoptera) of New Brunswick, Canada: New records and new synonyms, ZooKeys 573, pp. 339-366 : 356

Taxon classification Animalia Coleoptera Ciidae

Octotemnus glabriculus (Gyllenhal, 1827)* Fig. 16

Cis glabriculus Gyllenhal, 1827: 629

Octotemnus denudatus Casey, 1898: 91, new synonym; Dury 1917: 27 (as syn. of Octotemnus laevis Casey)

Octotemnus laevis Casey, 1898: 91, new synonym

Material examined.

New Brunswick, Carleton Co., Jackson Falls, "Bell Forest", 46.2204°N, 67.7274°W, 8.VIII.2006, R.P. Webster // Hardwood forest, on polypore fungus on dead standing beech (1, AFC; 1, RWC); same locality but 46.2200°N, 67.7231°W, 6.V.2007, R.P. Webster // Rich Appalachian hardwood forest, on fleshy polypore (bracket) fungi on dead standing beech (1, AFC); same locality and forest type but 12.IX.2008, R.P. Webster // in fleshy polypore mushroom on beech log (1, RWC); same locality and habitat data but 12-19.VI.2008, R. P. Webster // Lindgren funnel trap (1, AFC). Queens Co., Cranberry Lake P.N.A., 46.1125°N, 65.6075°W, 11-18.VI.2009, R.P. Webster & M.-A. Giguère, coll. // Old red oak forest, Lindgren funnel trap (1, RWC). Sunbury Co., Acadia Research Forest, 45.9866°N, 66.3441°W, 9-16.VI.2009, R.P. Webster & M.-A. Giguère // Red spruce forest with red maple & balsam fir, Lindgren funnel trap (1, RWC). York Co., Charters Settlement, 45.8286°N, 66.7365°W, 15.IX.2006, R.P. Webster // Mixed mature forest, on polypore fungi on tree trunk (1, RWC); same locality but 5.V.2005 // Mixed forest, in fleshy polypore fungi on stump (1, CELC); 15 km W of Tracy off Rt. 645, 45.6848°N, 66.8821°W, 1-8.VI.2009, R. Webster & M.-A. Giguère, coll. // Old red pine forest, Lindgren funnel traps (1, AFC; 1, CELC; 3, RWC); Douglas, Currie Mountain, 45.9844°N, 66.7592°W, 24.VI-9.VII.2013, C. Alderson & V. Webster // Mixed forest with Quercus rubra , Lindgren funnel trap in canopy of Quercus rubra (1, RWC); Canterbury, Eel River P.N.A., 45.8966°N, 67.6345°W, 2-20.VI.2014, C. Alderson & V. Webster // Old-growth eastern white cedar swamp & fen, Lindgren funnel traps (1, NBM; 1, RWC).

Distribution in Canada and Alaska.

AK, BC, AB, SK, MB, ON, QC, NB, NS, NF ( Bousquet et al. 2013). Most records of Octotemnus glabriculus from NB were based on specimens captured in Lindgren funnel traps. This species is currently known from seven localities from hardwood, mixed, and conifer forests in southern NB. Adults were collected from polypore fungi at several sites. This species was previously reported from NB by McNamara (1991) but without supporting data.

Taxonomic notes.

The possible synonymy of Octotemnus glabriculus (Gyllenhal) and Octotemnus laevis (Casey) was first proposed by Lawrence (1971) and corroborated by subsequent molecular analyses ( Buder et al. 2008; Lopes-Andrade and Grebennikov 2015). The type locality of Octotemnus glabriculus is Sweden, and specimens from England, Germany, Poland, Sweden, and a few other European countries were examined. The type locality of Octotemnus laevis is Rhode Island (USA), a locality on the northeastern coast and about 500 linear km south of NB, and specimens from western and eastern localities in Canada and USA were examined. It is important to note that specimens from the same populations with published molecular data of both Octotemnus glabriculus and Octotemnus laevis (see Buder et al. 2008) were also dissected and compared. The aedeagus in males from USA and Canada are exactly the same as in European specimens. Based on these observations and on previous morphological (e.g., Lawrence 1971) and molecular studies ( Buder et al. 2008, Lopes-Andrade and Grebennikov 2015), we propose the synonymization of Octotemnus glabriculus and Octotemnus laevis . Octotemnus denudatus Casey was previously synonymized with Octotemnus laevis ; we agree with this synonym and, consequently, Octotemnus denudatus is here proposed as a new synonym of Octotemnus glabriculus . Octotemnus Mellié is highly diversified in the Palaearctic region ( Kawanabe 2002), and only Octotemnus glabriculus is officially reported from North America. There seems to be no native species of the genus restricted to North America. Octotemnus glabriculus is widespread in the Holarctic region and seems to be closely related to Octotemnus omogensis Miyatake from Japan and Octotemnus rugosopunctatus Drogvalenko from the Caucasus.