Homalota plana (Gyllenhal)

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 : 81-82

163. Homalota plana (Gyllenhal) ‡

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

References. Gyllenhal 1810. Bernhauer 1907. Benick and Lohse 1974. Moore and Legner 1975. Seevers 1978. Klimaszewski et al. 2007, 2011, 2015a, 2018. Majka and Klimaszewski 2008. Brunke et al. 2021. Webster et al. 2022b.

Distribution. Nearctic or Holarctic, status uncertain, recorded from A/S ( Klimaszewski et al. 2021). Canada: AB, MB, NB, NF, NS, ON, PE. USA: AZ, CA, CO, IA, ID, IN, MT, NH (NSR), NY, OH, PA, TX.

Collection and Habitat data. The two NH adults lacked habitat data; collected in April and May. In Canada found mainly in coniferous forests, also mixed forests, and an old Populus balsamifera forest near a river ( Klimaszewski et al. 2018). Adults are usually found under bark of trees such as a Populus sp. , yellow birch with fermenting sap, American beech, white pines, and other coniferous trees ( Klimaszewski et al. 2018).

Material. USA, New Hampshire, Rockingham Co.: Hampton, 20.V.1917, S.A. Shaw, 1 sex?; (Hampton?), 12.IV.1917, (S.A. Shaw), 1 sex ?

Comments. Sequenced Nearctic specimens from ON form a distinct barcode cluster, separate from all sequenced Palearctic specimens and divergent by 7.58%. This pattern is inconsistent with a species adventive in North America and H. plana was removed from the list of adventive species in Canada (Brunke et al. 2021). Taxonomic status of the Nearctic population is not clear.