Sclerocoelus sordipes
Creators: name: Kuwahara, Gregory K.
name: Marshall, Stephen A.
name: Paiero, Steven M.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Sphaeroceridae
Sclerocoelus
Sclerocoelus sordipes

description: Sclerocoelus sordipes (Adams, 1904)
Limosina sordipes Adams, 1904: 455.
Limosina evanescens Tucker, 1907: 102.
Leptocera (Scotophilella) evanescens – Spuler 1925: 160. — Richards 1965: 724.
Leptocera (Limosina) sordipes – Richards 1965: 724.
Sclerocoelus sordipes – Marshall 1995: 284.
Diagnosis
Externally almost indistinguishable from S. parasordipes sp. nov. but differs as follows: male S5 with a very large medial pale area, dark lateral lines almost reaching anterior margin (cf. Marshall 1995: fig. 9); surstylus with a convex anterobasal edge (cf. Marshall 1995: figs 1–3); postgonite narrowly constricted without an anterolateral lobe in the apical third (cf. Marshall 1995: fig. 5).
Material examined
CANADA – Manitoba • 1 ♂; Winnipeg, University of Manitoba campus; 29 Jun.–2 Aug. 1984; R.E. Roughley leg.; DEBU. – New Brunswick • 2 ♀♀; Saint Andrews, Gibson Lake; 10 Jul. 1978; S.A. Marshall leg.; carrion pitfall traps; DEBU • 1 ♂; same data as for preceding; 11 Aug. 1978; DEBU • 1 ♀; Saint Andrews; 20 May 1978; A. Konecny leg.; old [wrack] bed, pan trap; DEBU • 1 ♀; Saint Andrews; 6 May 1978; Marshall and Konecny leg.; DEBU • 3 ♂♂; same data as for preceding; 20 May 1978; DEBU • 1 ♀; same data as for preceding; 26 May 1978; DEBU • 1 ♂; same data as for preceding; 12 May 1978; S.A. Marshall leg.; DEBU • 3 ♀♀; same data as for preceding; 22 May 1978; DEBU • 1 ♂, 1 ♀; same data as for preceding; 26 May 1978; DEBU • 1 ♀; same data as for preceding; 30 May 1978; DEBU • 1 ♀; Saint Andrews; 28 May 1978; S.A. Marshall leg.; Malaise trap; DEBU • 1 ♀; same data as for preceding; 26 May 1978; old [wrack] bed, pan trap; DEBU • 1 ♀; same data as for preceding; 6 Jun. 1978; DEBU • 1 ♀; same data as for preceding; 15 Aug. 1979; dead seagull; DEBU • 1 ♀; Kent Co., Kouchibouguac National Park; 18 May 1977; B. Cooper leg.; DEBU • 1 ♂; same data as for preceding; 25 Jun. 1977; J.R. Vockeroth leg.; DEBU. – Nova Scotia • 1 ♂; Blomidon; 27 Aug. 1989; S.A. Marshall leg.; moss in small stream; DEBU • 4 ♂♂, 1 ♀; Cape Breton Highlands National Park, Lone Shieling; 11 Jul. 1983; Borkent leg.; maple forest, Malaise trap; DEBU • 1 ♀; Cape Breton Highlands National Park, Mackenzie Mountain; 300 m a.s.l.; 29 Aug. 1983; Picea –Betula, Malaise trap; DEBU • 1 ♀; Cape Breton Highlands National Park; Mackenzie Mountain; 300 m a.s.l.; 4 Jul. 1983; J.R. Vockeroth leg.; mixed forest, Malaise trap; DEBU • 18 ♂♂, 22 ♀♀; Cape Breton Island, South Harbour; 12 Jul. 1983; J.R. Vockeroth leg.; mixed forest, Malaise trap; DEBU • 1 ♂; Kejimkujik National Park, Grafton Lake; 44°22′59″ N, 65°12′7″ W; 103 m a.s.l.; 3 Aug. 2009; forest, pitfall trap; BIObus 2009 leg.; 09BBEDI-2416/BBDEE453-10 sequenced for CO1-5’; BIOUG. – Ontario • 1 ♀; 6 km S of Perth; 28 Aug. 1987; J.R. Vockeroth leg.; marshy stream shore, sweep; DEBU • 5 ♂♂, 6 ♀♀; 11.3 km E of Griffith; 8 Jul. 1989; B.E. Cooper leg.; DEBU • 1 ♀; Algonquin Provincial Park, Swan Lake Station, Scott Lake survey; 23–30 Jun. 1994; A 5 shore, pans; DEBU • 1 ♀; same data as for preceding; 18–31 Jul. 1994; C1 shore, Malaise trap; DEBU • 1 ♂; same data as for preceding; 26 Jul.–5 Aug. 1994; S.A. Marshall leg.; C5 shore, pans; DEBU • 1 ♀; Blair, RARE, Cruickston Creek; 43°22′40″ N, 80°20′58″ W; 20–23 Jun. 2006; Cheung and Bergeron leg.; yellow pans in woodchips; DEBU • 1 ♂; Blair, RARE, The Dells; 43°22′55″ N, 80°20′32″ W; 20 Jun.–17 Jul. 2006; Bergeron and Cheung leg.; Malaise trap; DEBU • 1 ♂; Burlington, Bronte Creek Provincial Park; 1–5 Jun. 1983; Brown and Marshall leg.; Malaise trough; DEBU • 1 ♂; Caliper Lake Provincial Park; 49°03′26″ N, 93°54′49″ W; 25 Jun. 2001; S.A. Marshall leg.; DEBU • 1 ♀; Chaffey’s Lock, Queens University Biological Station; 1–5 Sep. 1985; S. Peck leg.; fields and forest, evening car netting; DEBU • 3 ♂♂, 8 ♀♀; Cumberland; Jul. 1975; L. Ling leg.; Malaise trap; DEBU • 1 ♂; Dorcas Bay; 6 Nov. 1998; S.A. Marshall leg.; DEBU • 1 ♀; Dunks Bay; 45°14′59″ N, 81°38′27″ W; 27 Jul. 1997; S.A. Marshall leg.; DEBU • 1 ♀; Dunks Bay; 5–12 Jul. 1999; S.A. Marshall leg.; dune, Malaise trap; DEBU • 1 ♀; Fathom Five National Marine Park, Bears Rump Island; 23 Jun.–26 Jul. 1995; T. Woodcock and S.A. Marshall leg.; juniper moss, pan trap; DEBU • 1 ♂; Fathom Five National Marine Park, Flowerpot Island; 12–30 May 1995; T. Woodcock and S.A. Marshall leg.; dry cedar duff, pan trap; DEBU • 1 ♂; Fergus; 12 May 1992; S.A. Marshall leg.; black composter; DEBU • 1 ♂; same data as for preceding; 12–15 Jun. 1992; DEBU • 1 ♂; Gooderham, Burnt River; 16 Jun. 1993; E.R. Barr leg.; Malaise trap; DEBU • 1 ♂; Guelph, University of Guelph Dairy Bush; 30 Jun. 1993; D.C. Caloren leg.; vegetation sweep; DEBU • 3 ♂♂, 3 ♀♀; Guelph, University of Guelph Dairy Bush; 30 Oct. 1984; B.V. Brown leg.; leaf litter; DEBU • 1 ♂, 1 ♀; Haliburton; 1 Jul. 1990; S.A. Marshall leg.; newly bulldozed road; DEBU • 1 ♂, 1 ♀; Hamilton; 28 Jun. 1980; M Sanborne leg.; Malaise trap; DEBU • 1 ♂; same data as for preceding; 19 Jul. 1980; DEBU • 3 ♂♂, 5 ♀♀; same data as for preceding; 31 Jul. 1980; DEBU • 1 ♂, 2 ♀♀; same data as for preceding; 14 Aug. 1980; DEBU • 1 ♂; same data as for preceding; 4–18 Aug. 1980; DEBU • 2 ♂♂, 1 ♀; same data as for preceding; 28 Aug. 1980; DEBU • 1 ♂, 2 ♀♀; Hilton Beach; 6–27 Jun. 1987; J.E. Swann leg.; cedar swamp, pan traps; DEBU • 1 ♀; same data as for preceding; 2–15 Aug. 1987; DEBU • 1 ♀; Hilton Beach; 18 Aug. 1992; J.E. Swann leg.; field, Malaise trap; DEBU • 1 ♂; Hilton Beach; 6 Oct. 1992; J.E. Swann leg.; Malaise trap at edge of hardwood forest of field; DEBU • 1 ♂, 3 ♀♀; Icewater Creek watershed, 12.7 km NNE of Searchmont, Whitman Dam Road, mile 10.5; 21–28 Jul. 1986; riparian meadow-alder thicket, Malaise trap; DEBU • 2 ♂♂, 9 ♀♀; Icewater Creek watershed; 46°53′42″ N, 84°03′24″ W; 10–24 Jul. 1998; K.N. Barber leg.; moist depression in mixed forest Thalictrum /Eupatorium, pitfalls; DEBU • 1 ♀; Long Point Provincial Park; 21–30 Jul. 1983; Carlson and Marshall leg.; Malaise head; DEBU • 2 ♂♂, 6 ♀♀; same data as for preceding; 30 Jul.–5 Aug. 1983; DEBU • 1 ♂; Manester Track, 6 km NNW of St. Williams; 8 Jun. 2001; M. Buck leg.; forest, dung pans; DEBU • 2 ♂♂, 2 ♀♀; Middleville to White Lake Road; 27 Apr. 1986; S. and J. Peck leg.; evening car netting; DEBU • 1 ♂; Nepean; 26 Oct. 1989; L. Masner leg.; flight-intercept trap near log pile; DEBU • 1 ♀; Ottawa, Hôpital Montfort Woods; Aug. 1993; J.R. Vockeroth leg.; yellow pans; DEBU • 3 ♂♂, 4 ♀♀; Ottawa, near Uplands Airport; 25 Jul. 1987; J.M. Cumming leg.; Malaise trap; DEBU • 1 ♂ Ottawa; 19 Jun. 1989; J.R. Vockeroth leg.; swept over bare path in Acer wood, at dusk (1800 hr EST); DEBU • 1 ♂; Ottawa; 19 Apr. 1990; J.R. Vockeroth leg.; damp ditch in Acer wood; DEBU • 1 ♂, 2 ♀♀; same data as for preceding; 24 Aug. 1991; DEBU • 1 ♂, 2 ♀♀; Ottawa; Jul. 1990; J.R. Vockeroth leg.; bus shelter; DEBU • 1 ♂; Ottawa; Oct. 1990; J.R. Vockeroth leg.; DEBU • 4 ♂♂, 5 ♀♀; Point Pelee National Park; 41°59′ N, 82°27′ W; 20–25 Jul. 1999; A. Tesolin leg.; Malaise and pan trap; DEBU • 4 ♂♂, 2 ♀♀; Point Pelee National Park; 10 Aug. 1999; O. Lonsdale leg.; wooded area by W beach, Malaise/pan traps; DEBU • 11 ♂♂, 15 ♀♀; Point Pelee National Park, Visitor Centre; 10–15 May 2000; O. Lonsdale leg.; Malaise trap and pans; DEBU • 8 ♂♂, 17 ♀♀; same data as for preceding; 15–22 May 2000; DEBU • 1 ♂; same data as for preceding; 22–29 May 2000; DEBU • 1 ♂, 3 ♀♀; same data as for preceding; 16–23 Jun. 2000; DEBU • 1 ♀; same data as for preceding; 23 Jun.–4 Jul. 2000; DEBU • 1 ♂, 2 ♀♀; same data as for preceding; 22–30 Jul. 2000; DEBU • 1 ♀; same data as for preceding; 26 Sep.–10 Oct. 2000; DEBU • 2 ♂♂; same data as for preceding; 10–18 Oct. 2000; DEBU • 1 ♂; Rideau Ferry, Big Rideau Lake; 24 Aug. 1985; S. and J. Peck leg.; forest and field, evening car netting; DEBU • 3 ♂♂, 3 ♀♀; Rondeau; 25 Jun. 1982; S.A. Marshall leg.; DEBU • 1 ♂; St. Joseph Island; 9 Aug. 1992; J.E. Swann leg.; forest edge, Malaise trap; DEBU • 1 ♀; Thousand Islands National Park; 31 May 1983; S.A. Marshall leg.; Malaise head; DEBU • 1 ♀; Tobermory, Spring Cove and vicinity; 14 Jul. 1996; S.A. Marshall leg.; DEBU • 1 ♂; Windsor, 1.5 km S of Ojibway Prairie; 22 Sep. 2001; S.M. Paiero leg.; forest-prairie edge, Malaise trap; DEBU • 3 ♀♀; Windsor, Ojibway Prairie; 30–31 Jul. 2002; M. Buck leg.; white pans; DEBU • 1 ♂; Windsor; 19–26 Jul. 1982; S.A. Marshall leg.; Malaise trap; DEBU. – Quebec • 1 ♂; Montebello; 18 Aug. 1987; J.R. Vockeroth leg.; dry streambed, sweep; DEBU. – Saskatchewan • 1 ♀; Grasslands National Park, Val Marie; 23 Aug. 1997; Marshall and Finnamore leg.; prairie dog raised emergence trap; DEBU.
UNITED STATES OF AMERICA – Arkansas • 3 ♂♂, 2 ♀♀; Polk Co., 20.9 km NW of Mena, Rich Mountain; 850 m a.s.l.; 1–3 Jun. 1979; S. and J. Peck leg.; mesic oak-hickory; DEBU. – Georgia • 1 ♀; Forsyth; 2 Jun. 1970; DEBU. – Illinois • 1 ♂, 1 ♀; Cook Co., Willow Springs; 18 Oct. 1942; H.S. Dybas leg.; forest floor, among leaves; DEBU. – Indiana • 1 ♂, 2 ♀♀; Lawrence Co., Hoosier National Forest, Donaldson trail; 19 May 1991; J.E. Swann leg.; DEBU • 1 ♂; Lawrence Co., Hoosier National Forest; 12 Jul. 1989; S.A. Marshall leg.; sweeps in forest; DEBU • 26 ♂♂, 21 ♀♀; Orange Co., Pioneer Mothers Memorial Forest; 12 Jul. 1989; S.A. Marshall leg.; sweep near open ant nest; DEBU. – Kentucky • 1 ♀; Laurel Co., 24 km W of London; 4–30 Jun. 1984; S.A. Marshall leg.; oak, flight-intercept trap; DEBU. – New Hampshire • 3 ♀♀; Coos Co., 1.6 km NE of East Inlet Dam; 12–24 Jun. 1986; D.S. Chandler leg.; flight-intercept trap; DEBU • 6 ♀♀; same data as for preceding; 10–24 Jul. 1986; DEBU • 1 ♂, 4 ♀♀; same data as for preceding; 25 Jul.–7 Aug. 1986; DEBU • 2 ♂♂, 4 ♀♀; same data as for preceding; 8–21 Aug. 1986; DEBU • 1 ♀; Coos Co., Norton Pool, 4.8 km NE of East Inlet Dam; 27 May–11 Jun. 1986; D.S. Chandler leg.; flight-intercept trap; DEBU • 2 ♀♀; same data as for preceding; 12–24 Jun. 1986; DEBU • 2 ♀♀; same data as for preceding; 25 Jun.–9 Jul. 1986; DEBU • 2 ♀♀; same data as for preceding; 10–24 Jul. 1986; DEBU • 1 ♂, 5 ♀♀; Rockingham Co., 1.6 km SW of Durham; 11–18 Jun. 1987; D.S. Chandler leg.; flight-intercept trap; DEBU • 2 ♂♂, 1 ♀; Strafford Co., 1.6 km SW of Durham; 27 Apr.–11 May 1987; D.S. Chandler leg.; flight-intercept trap; DEBU • 3 ♂♂, 7 ♀♀; Strafford Co., Spruce Hole, 4.8 km SW of Durham; 29 Jul.–6 Aug. 1987; D.S. Chandler leg.; flight-intercept trap; DEBU • 6 ♂♂, 22 ♀♀; same data as for preceding; 25 Sep.–14 Oct. 1987; DEBU • 19 ♂♂, 46 ♀♀; same data as for preceding; 15–17 Oct. 1987; DEBU • 16 ♂♂, 11 ♀♀; same data as for preceding; 8–14 Nov. 1987; DEBU • 1 ♂; Strafford Co., Spruce Hole Bog; 22–25 Jun. 1986; S.A. Marshall leg.; pan trap; DEBU. – New York • 1 ♂; Albany Co., Clarkesville, Onesquethaw Cave; 6 Nov. 1982; S.A. Marshall leg.; DEBU • 14 ♂♂, 40 ♀♀; Greene Co., Cairo; 1 Jul. 1980; S.A. Marshall leg.; decaying grass; DEBU • 1 ♂; Suffolk Co., Riverhead, Long Island “ Veg. Res. Fm. ”; 30 Aug. 1988; CNCI. – North Carolina • 2 ♂♂; Bladen Co., Singletary Lake Sate Park; 34°35′00″ N, 78°27′30″ W; 14–18 May 2001; S.A. Marshall leg.; near water, sweep slash pile; DEBU • 2 ♂♂, 1 ♀; Jackson Co., Cullowhee, Cane Creek; 670 m a.s.l.; 6–17 Jun. 1984; S.A. Marshall leg.; Malaise/pan trap; DEBU. – Ohio • 2 ♀♀; Champaign Co., Cedar Bog Nature Preserve; 6–20 Jun. 1980; L. Watrovs leg.; DEBU • 8 ♂♂, 3 ♀♀; Lawrence Co., Wayne National Forest, Vesuvius Recreational Area; 13 Jul. 1989; S.A. Marshall leg.; sweep in forest; DEBU • 2 ♂♂; Morgan Co., Wayne National Forest, Wildcat Hollow; 14 Jul. 1989; S.A. Marshall leg.; wet grass clippings; DEBU • 1 ♂; same data as for preceding; 17 Jul. 1989; floodplain, sweep; DEBU. – South Carolina • 1 ♂; Barnwell Co., Barnwell; 10–18 Apr. 1989; S.A. Marshall leg.; mushroom traps in oak forest; DEBU. – Tennessee • 1 ♂; Blount Co., Great Smoky Mountains National Park, Middle Prong Little River; 35°38′24″ N, 83°41′42″ W; 25 Jul. 1999; J. Cooper leg.; light trap; DEBU • 2 ♂♂; Sevier Co., Great Smoky Mountains National Park, western tributary of Porter’s Creek, 0.8 km SW of access gate; 22 Jul. 1999; J. Cooper; DEBU. – Virginia • 1 ♂; Giles Co., New River; 17 May 1997; S.A. Marshall leg.; DEBU.
Distribution
Nearctic: Canada, United States of America.
Remarks
Sclerocoelus sordipes is externally very similar to S. parasordipes sp. nov. (from western North America), from which it differs only in the features described above. Females of these two species are indistinguishable externally and were associated with conspecific males on the basis of collecting localities. Sclerocoelus sordipes is a common eastern Nearctic species, found from Manitoba to Nova Scotia and south to Georgia. We have collected it most often on moist decaying plant material, including lawn clippings and leaf piles in forested areas.
description: Published as part of Kuwahara, Gregory K., Marshall, Stephen A. & Paiero, Steven M., 2025, A revision of the genus Sclerocoelus Marshall (Diptera: Sphaeroceridae), pp. 1-277 in European Journal of Taxonomy 979 on pages 106-109, DOI: 10.5852/ejt.2025.979.2803, http://zenodo.org/record/14980852