Medon (Medon) fusculus (Mannerheim, 1830)†

Webster, Reginald P., Davies, Anthony E., Klimaszewski, Jan & Bourdon, Caroline, 2016, Further contributions to the staphylinid fauna of New Brunswick, Canada, and the USA, with descriptions of two new Proteinus species (Coleoptera, Staphylinidae), ZooKeys 573, pp. 31-83 : 66

Taxon classification Animalia Coleoptera Staphylinidae

Medon (Medon) fusculus (Mannerheim, 1830)†

Material examined.

New Brunswick, York Co., Fredericton, Odell Park, 45.9570°N, 66.6695°W, 7.IX.2005, R.P. Webster // Mixed forest, in compost (decaying plant material) (1 ♂, RWC). Ontario, Milldale, 45°56'08N 80°35'08W, 25.V.2011, A. Davies, beech and poplar litter in deep ravine (8, CNC). Quebec, Johnville, La Framboisière de l’Estrie, 24.V.1989, C. Lévesque (1, CNC); Compton, 2.VI.2014 (1 ♀), 9.VI.2014 (1 ♂), 16.VI.2014 (1 ♀), 23.VI.2014 (1 ♂), C. Lévesque, pièges à fosse, en bordure d’un verger, (all coll. C. Lévesque).

Distribution in Canada and Alaska.

ON, QC, NB ( Bousquet et al. 2013). The Palaearctic Medon fusculus is adventive to North America and was first reported from QC in the checklist by Campbell and Davies (1991). Brunke and Marshall (2011) provided the first documented records for North America. Here, we present the first record from NB, as well as the data on which the distribution given in Bousquet et al. (2013) was based (CNC).

Natural history.

In the Palaearctic, Medon fusculus occurs in leaf litter and compost ( Assing 2004). The sole specimen from NB was found in a compost pile in a mixed forest. Specimens from ON were sifted from deciduous litter in a small fragment of mature forest, collected from under a rock, in pitfall traps and canopy traps along hedgerows ( Brunke and Marshall 2011), and sifted from damp beech and poplar litter by a stream in a deep ravine on agricultural land (CNC). The QC specimens were collected in pitfall traps on a raspberry plantation and at the edge of an orchard growing apples, pears, and plums.