New Brunswick, York Co., Charters Settlement, 45.8395°N, 66.7391°W, 10.VI.2007, 25.VI.2009, R. P. Webster, mixed forest, u.v. light (2, RWC).

Both individuals of this species were collected during June at an ultraviolet light deployed near a mixed forest.

ON, QC, NB, NS (McNamara 1991).

New Brunswick, Queens Co., Cranberry Lake P.N.A. (Protected Natural Area), 46.1125°N, 65.6075°W, 11-18.VI.2009, R. Webster & M.-A. Giguère, old red oak forest, Lindgren funnel trap (1, RWC). York Co., Charters Settlement, 45.8428°N, 66.7279°W, 16.IX.2004, 23.IX.2009, R. P. Webster, regenerating mixed forest, baited with pile of decaying mushrooms (2, RWC); Charters Settlement, 45.8395°N, 66.7391°W, 9.IX.2007, R. P. Webster, mixed forest, in decaying (mouldy) corncobs and cornhusks (1, RWC); Canterbury, near Browns Mountain Fen, 45.8964°N, 67.6273°W, 8.IX.2007, R. P. Webster, in flight along woodland trail (1, RWC).

Adultshave been reported from fungi, dung, and various decaying organic material (Howden 1955; Downie and Arnett 1996). Adults from New Brunswick were collected from decaying mushrooms and decaying moldy corncobs and cornhusks. One individual was captured in a Lindgren funnel trap deployed in an old red oak (Quercus rubra L.) forest, and another was collected as it flew along a woodland trail. Adults were collected during June and September.

ON, QC, NB, NS (McNamara 1991).

New Brunswick, Albert Co., Waterside, Waterside Beach, 45.6282°N, 64.8129°W, 29.V.2010, R. P. Webster & M.-A. Giguère, sea beach, white sand, under log (6, RWC).

No habitat data were reported by Brown (1931) or Gordon and Cartwright (1988) for this species. The Aegialia (sensu stricto) are usually found on coastal and inland dune systems or on gravel shores of streams and ponds (subgenus Psammoporus) (Gordon and Cartwright 1988). The adults from New Brunswick were found under driftwood on a sand dune along a sea beach. Adults were collected during late May.

AK, BC, AB, SK, MB, ON, QC, NB, NF (McNamara 1991).

New Brunswick, Queens Co., Bayard, at Nerepis River, 45.4473°N, 66.3318°W, 24.V.2009, R. P. Webster, river margin on sand bar, under log set in sand (1, RWC).

No habitat data on this species were included in Gordon and Cartwright (1988). The specimen from New Brunswick was found under a log set in sand on a sand bar during late May.

ON, QC, NB, NS, PE (McNamara 1991).

New Brunswick, Carleton Co., Jackson Falls, Bell Forest, 46.2200°N, 67.7231°W, 12–19.VI.2008, 19–27.VI.2008, R. P. Webster, mature hardwood forest, Lindgren funnel traps (2, RWC); same locality but 46.2150°N, 67.7190°W, 2.VI.2005, M.-A. Giguère & R. Webster, floodplain forest with butternut, adult collected while in flight (1, RWC). Restigouche Co., Dionne Brook P.N.A., 47.9064°N, 68.3441°W, 31.V–15.VI.2011, M. Roy & V. Webster, old-growth white spruce and balsam fir forest, Lindgren funnel trap (1, RWC).

No habitat information was included for this species in Gordon and Cartwright (1988). In New Brunswick, adults were captured in Lindgren funnel traps deployed in hardwood forest and an old-growth white spruce and balsam fir forest. One individual was collected with an aerial net during an evening flight near a floodplain forest. Adults were collected during May and June.

ON, QC, NB (McNamara 1991).

New Brunswick, Carleton Co., Meduxnekeag Valley Nature Preserve, 46.1940°N, 67.6801°W, 12.VIII.2004, 31.VIII.2006, R. P. Webster, hardwood forest, in decaying mushrooms (2, RWC). York Co., Charters Settlement, 45.8428°N, 66.7275°W, 6.X.2005, R. P. Webster, regenerating mixed forest, baited with pile of decaying mushrooms (1, RWC); same locality and collector but 45.8286°N, 66.7365°W, 15.VIII.2004, regenerating mixed forest, baited with pile of decaying mushrooms (3, RWC).

Dialytellus dialytoides is usually associated with deer (Odocoileus virginianus (Zimmerman)) dung in forests or in damp soil under deer dung, although two large series were taken from rotting mushrooms in Quebec and Ontario (Gordon and Skelley 2007). Gordon and Skelley (2007) considered the latter records as surprising, but suggested that this might be a survival tactic when the preferred food was not available. In New Brunswick, all specimens were taken from decaying mushrooms. Adults were taken during August and October.

ON, QC, NB (McNamara 1991).

New Brunswick, York Co., Slagundy Dry Ponds, 45.8596°N, 67.1849°W, 8.VII.2006, R. P. Webster, large vernal pond, in moist leaves on pond margin (1, RWC).

Gordon and Skelley (2007) noted that this species was restricted to pond and swamp margins and was likely a detritivore. The sole specimen from New Brunswick was sifted from moist leaves on the margin of a large vernal pond during July.

YK, NT, BC, AB, SK, MB, ON, NB (McNamara 1991).

New Brunswick, Queens Co., Cranberry Lake P.N.A, 46.1125°N, 65.6075°W, 29.VI-7.VII.2011, M. Roy & V. Webster, old red oak forest, Lindgren funnel trap (1, RWC).

Diapterna pinguis is apparently a detritivore, having been collected in pitfall traps in areas without mammal dung (Gordon and Skelley 2007). It is common “in shelter belts in floodplain forests, apparently feeding in the humus layer” (Helgesen and Post 1967). The individual from New Brunswick was captured during July in a Lindgren funnel trap deployed in an old red oak forest.

NT, AB, SK, MB, ON, QC, NB, NF (McNamara 1991).

New Brunswick, Restigouche Co., Little Tobique River near Red Brook, 47.4462°N, 67.0689°W, 24.V.2007, R. P. Webster, old growth eastern white cedar swamp, in moss and leaf litter near brook (1, RWC). Saint John Co., Chance Harbour off Rt. 790, 45.1355°N, 66.3673°W, 15.V.2006, R. P. Webster, eastern white cedar swamp, in moss and leaf litter near brook (1, RWC). York Co., New Maryland, Charters Settlement, 45.8430°N, 66.7275°W, 5.V.2006, R. P. Webster, mixed forest, entrance to porcupine den, in porcupine dung (1, RWC).

This species was reported from moose (Alces alces (L.)) dung and carnivore scats in a spruce and sphagnum bog in Ontario as well as from localities in Quebec (Cooper and Gordon 1987). Specimens from New Brunswick were sifted from moss and leaf litter in old-growth eastern white cedar (Thuja occidentalis L.) swamps and from porcupine (Erethizon dorsatum (L.)) dung in the entrance of a porcupine den. All adults were collected during May.

ON, NB, QC (McNamara 1991; Cooper and Gordon 1987).

New Brunswick, Queens Co., ca. 3.5 km W of Lower Gagetown, 45.7500°N, 66.1833°W, 17.VI.2009, S. Makepeace & R. Webster, in nest contents of barred owl, relatively dry humus-like soil with oak leaves, no urine smell (4, RWC); Cranberry Lake P.N.A, 46.1125°N, 65.6075°W, 24.IV–5.V.2009, R. Webster & M.-A. Giguère, old red oak forest, Lindgren funnel trap (1, AFC). York Co., Keswick Ridge, 46.0040°N, 66.8776°W, 23.V.2006, S. Makepeace, barred owl nest box with 440 gm chicks, in moist nest material with insect parts and small bones (urine smell) (1, RWC).

Stenotothorax badipes is usually found in nests of such squirrels as the southern flying squirrel (Glaucomys volans (Linnaeus)), the gray squirrel (Sciurus carolinensis Gremlin), and the fox squirrel (Sciurus niger (Linnaeus)), nesting in tree holes filled with pieces of acorns, detritus, and likely squirrel scat (Gordon and Skelley 2007). The adults from New Brunswick were collected from the contents of barred owl (Strix varia Barton) nests that were in either artificial nest boxes or in natural tree cavities (tree holes). The nest material from one nest consisted of relatively dry humus-like soil with oak leaves; the nest material from the other nest was moist and had insect parts and small bones. One specimen was captured in a Lindgren funnel deployed in an old red oak forest. Adults were collected during April, May, and June in New Brunswick.

ON, QC, NB (McNamara 1991).

New Brunswick, York Co., Charters Settlement, 45.8395°N, 66.7391°W, 10.VI.2007, R. P. Webster, mixed forest, u.v. light (1, RWC).

Nothing has been published on the habitat requirements of this species. The only specimen from New Brunswick was collected at an ultraviolet light during June near a mixed forest.

ON, QC, NB (McNamara 1991).

New Brunswick, Gloucester Co., Bathurst, Daly Point Reserve, 16.V.1994, 28.VII.1998, R. P. Webster, old field, pitfall traps (2, RWC).

Two individuals were collected in pitfall traps in an old field with sandy soil. Adults were collected during May and July.

AB, SK, MB, NB, NS (McNamara 1991).

New Brunswick, Queens Co., Grand Lake Meadows P.N.A., 45.8227°N, 66.1209°W, 31.V-15.VI.2010, 15–29.VI.2010, R. Webster & C. MacKay., old silver maple forest with green ash and seasonally flooded marsh, Lindgren funnel traps (10, AFC, RWC); same locality data and forest type, 3–21.VI.2011, 21.VI–5.VII.2011, 5–19.VII.2011, R. Roy & V. Webster, Lindgren funnel traps (20, AFC, NBM, RWC).

Adults of Gnorimella maculosa are often found nectaring on flowers and frequent forested areas (See Majka 2010 for a list of plant species and associated references on which adults have been found). In New Brunswick, 30 individuals of Gnorimella maculosa were captured in Lindgren funnel traps deployed in an old silver maple (Acer saccharinum L.) swamp during June and July in 2010 and 2011.

ON, QC, NB, NS (McNamara 1991; Majka 2010). Majka (2010) recorded this species for the first time from Nova Scotia and the Maritime provinces based on a specimen from Annapolis Co., Annapolis Royal, collected by Sheilagh Hunt and Christopher G. Majka.

New Brunswick, Queens Co., Central Hampstead, 45.6575°N, 66.1412°W, 13.VII.2006, S. Makepeace & R. Webster, hardwood ridge, in nest of barred owl in tree hole (1, RWC); Central Hampstead, 13.VIII.2007, S. Makepeace, near house (1, RWC); Grand Lake Meadows P.N.A., 45.8227°N, 66.1209°W, 29.VI–12.VII.2010, R. Webster, C. MacKay, M. Laity, & R. Johns, old silver maple forest with green ash and seasonally flooded marsh, Lindgren funnel trap (1, AFC); same locality data and forest type, 19.VII–5.VIII.2011, 5-17.VIII.2011, 17–30.VIII.2011, M. Roy & V. Webster, Lindgren funnel traps in forest canopy (14, AFC, NBM, RWC). York Co., Skiff Lake, 15.VIII.1962 (1, AFC); Fredericton, Smythe St. extension, 5.VIII.1945, F. G. Cuming (1 AFC); Fredericton, 8.VIII.1973, 2.VIII.1977 (2, AFC); Douglas, 24.VII.1975 (1, AFC); Charters Settlement, 45.8395°N, 66.7391°W, 30.VII.1993, 13.VIII.2004, R. P. Webster (on ground near house) (2, NBM, RWC).

Larvae of Osmoderma species live in decaying wood in the heart of trunks and branches of old and often declining hardwood trees (Packard 1890; Hoffman 1939). Osmoderma eremicola with habitat data were collected from the nest contents of a barred owl nesting in a tree hole and on the ground near homesteads. Most (14) individuals were captured in Lindgren funnel traps deployed in the mid canopy of large silver maples in an old silver swamp. Adults were collected during July and August.

ON, QC, NB, NS (McNamara 1991).