Placusa incompleta Sjöberg, 1934

Klimaszewski, Jan, Chandler, Donald S., Davies, Anthony & Bourdon, Caroline, 2023, Aleocharine rove beetles of New Hampshire, USA: new taxa and new records (Coleoptera, Staphylinidae, Aleocharinae), Zootaxa 5364 (1), pp. 1-141 : 112

240. Placusa incompleta Sjöberg †

(Illustrations in Klimaszewski et al. 2001, 2018), Table 1

References. Sĵberg 1934. Palm 1959. Horion 1967. Klimaszewski et al. 2001, 2011, 2015a, 2016e, 2018. Klimaszewski and Winchester 2002a. Webster et al. 2009. Brunke et al. 2012. Work et al. 2013.

Distribution. Palearctic, adventive in North America. Canada: AB, BC, NB, NF, NS, ON, QC, SK. USA: NH (NSR), WA.

Collection and Habitat data. In NH captured from Picea rubens [in rearing chambers for bark beetles]; adults present in August and October. In Canada recorded from Abies balsamea , Acer saccharum , yellow birch, mature red spruce, red maple, and old-growth white spruce and balsam fir forests. In BC present in coastal montane forests of central Vancouver Island with mature Douglas fir ( Pseudotsuga menziesii (Mirb.) and western hemlock ( Tsuga heterophylla (Raf.) Sarg. ) ( Klimaszewski et al. 2001, Klimaszewski and Winchester 2002a, Webster et al. 2009, Brunke et al. 2012). In Europe taken in Betula , Populus , Quercus , and conifer forests. Adults from under bark of tamarack infested by eastern bark beetle, under bark of red spruce infested with Dendroctonus rufipennis (Kirby) and Polygraphus rufipennis (Kirby) ( Klimaszewski et al. 2018) .

Material. USA, New Hampshire, Carroll Co.: Bartlett Experimental Forest , 44.07414, -71.29091, 11.VIII.2021, K.J. Dodds, ex. Picea rubens , 2 males, 1 female, 3 sex? ( MFCD); same data, 1 male, 1 sex?; 7.X.2021, K.J. Dodds, ex. Picea rubens , 1 sex? ( MFDC) .