Corresponding author: Reginald P. Webster (
Academic editor: P. Bouchard
This paper treats the discovery of new species and new records of
Webster RP, Davies AE, Klimaszewski J, Bourdon C (2016) Further contributions to the staphylinid fauna of New Brunswick, Canada, and the USA, with descriptions of two new
In recent years, the
During the last several years new provincial and Canadian records from the subfamilies
Alberta
Alaska
British Columbia
Manitoba
New Brunswick
Newfoundland and Labrador*
Nova Scotia
Northwest Territories
Nunavut
Ontario
Prince Edward Island
Quebec
Saskatchewan
Yukon Territory
*Newfoundland and Labrador are each treated separately under the current Distribution in Canada and Alaska.
USA state abbreviations follow those of the US Postal Service. Acronyms of collections referred to in this study where specimens reside are as follows:
Natural Resources Canada, Canadian Forest Service - Atlantic Forestry Centre, Fredericton, New Brunswick, Canada
Canadian National Collection of Insects, Arachnids, and Nematodes, Agriculture and Agri-Food Canada, Ottawa, Ontario, Canada
New Brunswick Museum, Saint John, New Brunswick, Canada
Hungarian Natural History Museum, Budapest, Hungary
Reginald Webster Collection, Charters Settlement, New Brunswick, Canada
Species with a † are adventive to Canada, species with a ‡ are either Holarctic or adventive to Canada, species with a * are Holarctic. The determination that a species was a new record is based on information in the print version of
The
Specimens were collected during June by treading emergent
This species was collected in a red oak (
The
Originally described from
In
This species is named in honor of Cory Hughes (
Body length 2.0–2.2 mm, head black, pronotum dark piceous brown and lighter than head; elytra piceous brown, often slightly lighter than pronotum, first two antennal segments testaceous, second segment sometimes darker, remaining segments dark brown becoming slightly darker towards last segment; legs testaceous; forebody and elytra with pubescence sparse, recumbent, directed posteriad; head and pronotum with distinct isodiametric microsculpture throughout, stronger on head, punctures widely spaced, shallow; elytra with punctation coarse, sparse, with little microsculpture, thus appearing glossy; pronotum with lateral margin arcuate in anterior third, then nearly straight to hind margin, hind angle nearly rectangular, narrowly rounded, hind margin sinuate; mesosternum with disc transversely rugose, with anteromedial carinae long, divergent, well-separated; mesosternal process very narrow, spiniform between middle coxae, without carina or pubescence; metasternum distinctly finely scalloped along anterior marginal bead, process very broadly rounded between middle coxae, disc sparsely pubescent; body shape and proportions as in Fig.
We compared the genitalia of the types of all known North American species and available illustrations of the genitalia of all Palearctic species and found none matching this species which led to the conclusion that this species was undescribed.
This species is recorded in Canada from
In
Body length 1.5–1.8 mm, head black, pronotum and elytra dark brown and lighter than head; first two antennal segments testaceous, remaining segments dark brown becoming slightly darker toward last segment; legs testaceous; forebody and elytra with pubescence sparse, recumbent, directed posteriad; head and pronotum with distinct isodiametric microsculpture throughout, slightly stronger on head, punctures widely spaced, shallow; elytra with punctation coarse, sparse, with little microsculpture, thus appearing glossy; lateral margin of pronotum broadly arcuate, widest at middle, hind angle obtuse, slightly rounded; hind margin sinuate; mesosternum with disk irregularly rugulose, with anteromedial carinae short, subparallel, well-separated, mesosternal process narrow, with fine, short carina between middle coxae, gradually tapering to acute apex; metasternum depressed along anterior marginal bead, process very broadly rounded between middle coxae, disk sparsely pubescent; body shape and proportions as in Fig.
In
Originally described from
In
This species is named in honor of Jon Sweeney (
Body length 1.7–2.0 mm, head black, pronotum dark brown and lighter than head; elytra brown to dark brown, lighter than pronotum; first two antennal segments testaceous, remaining segments dark brown becoming darker toward last segment; legs testaceous; forebody and elytra with pubescence sparse, recumbent, directed posteriad; pronotum with microsculpture distinct, dilated on sides and at base, becoming isodiametric near center, punctures widely spaced, shallow; elytra with punctation coarse, sparse, with little microsculpture, thus appearing glossy; pronotum with lateral margin arcuate in anterior two-thirds, then almost straight to hind margin, widest just before hind angle, hind angle obtuse, narrowly rounded, hind margin sinuate; mesosternum with disk irregularly rugulose, with anteromedial carinae forming semi-circular ridge with anteromedial margin, mesosternal process broad, gradually tapering to narrowly rounded apex, with long, very fine median carina; metasternum very broadly rounded between middle coxae, disk sparsely, coarsely pubescent; body shape and proportions as in Fig.
This species is known from
In
We compared the genitalia of the types of all known North American species and available illustrations of the genitalia of all Palearctic species and found none matching this species, which led to the conclusion that this species was undescribed. There are several other species of
The
One individual was captured in a Lindgren funnel trap in an old silver maple (
In Europe,
This adventive species is distinguished from other North American species of
One individual was captured in a Lindgren funnel trap in an old jack pine forest. Elsewhere, specimens have been collected from under stones in damp areas, on banks of small streams, in wet moss, from under damp decayed leaves and rubbish, and occasionally in dung and carrion (
Specimens were collected by splashing sand/clay in an intertidal area with sparse vegetation behind a barrier sea beach (sand dune).
Examples of each of the
In
All
In
Specimens from
This species was most commonly found among moist leaf litter on vernal pond margins in various forest types, including a mixed forest, red oak and red maple forest, red maple swamps, wet alder swamp, and a hardwood stand. A few were found among grass litter near slow flowing streams. Adults were collected during April and May.
All but one of the specimens known from
This species was found on pond, stream, and river margins in moist grass litter on mud, in leaf and grass litter on mud and clay soil, under litter on muddy soil, under drift material, and in fine gravel/sand on a stream margin close to water. One individual was collected by treading emergent grass into water along the margin of an oxbow. Adults were collected during May, June, and July.
Specimens were found on the inland margin of a salt marsh in litter on muddy soil, in moist grass litter on mud on a pond margin near a river, and in leaf and grass litter on mud/clay soil near a river margin in a silver maple swamp. Adults were collected during May and June.
Adults of
One individual of this adventive species was captured in a Lindgren funnel trap.
Both specimens from
Members of this subfamily occur in forest litter, moss, rotting logs, tree holes, and other moist habitats such as marshes and bogs (
Members of this subfamily occur in various habitats, especially wetland habitats where they occur on rocks and plants near streams and rivers, ponds, and marshes (
In
The single
The single
In
In
The
Most adults of
In
One individual of
All specimens of
Most specimens of
The sole specimen known from
Only one specimen is known from
YK,
Most specimens of
This is a small subfamily, with 28 species reported from North America by
Members of this subfamily that occur in Canada occur in
Here, we report
The five specimens of this species from
The three
This species was sifted from moss and leaf litter, and litter, grasses, and moss on hummocks near water in an old-growth eastern white cedar swamp. Adults were found in May and June.
In the Palaearctic,
In
In the Palaearctic,
All specimens of
We thank Caroline Simpson for editing this manuscript and Adam Brunke and J. Howard Frank for their helpful comments. The following people are thanked for determining specimens: Margaret Thayer (