Leptusa (Dysleptusa) carolinensis Pace 1989
Creators: name: Park, Jong-Seok
name: Carlton, Christopher E.
name: Ferro, Michael L.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Leptusa
Leptusa carolinensis

description: Leptusa (Dysleptusa) carolinensis Pace, 1989
(Figs. 1 e, 6a – l, Map 1)
Leptusa (Dysleptusa) carolinensis Pace, 1989: 252; Klimaszewski et al., 2004: 32; Gouix & Klimaszewski, 2007: 62; Webster et at., 2009: 207.
Type material examined. Holotype. U.S.A.: North Carolina: ɗ, glued on rectangular card, both antennae broken (left antennomeres 9 – 11 missing and right antennomeres 8 – 11 missing), aedeagus dissected and mounted in balsam on a clear plastic card, “NC Haywood Co. Blue Rdg. Pkw. Woodfin Cascade 1400 m 28.V.1986 A. Smetana” [white label, printed], “ HOLOTYPUS Leptusa carolinensis det. R. PACE 1987” [red label, handwritten], “ Leptusa carolinensis sp. n. det. R. Pace 1987” [white label, handwritten], “ HOLOTYPE CNC No. 20978” [red label, handwritten]. Deposited in Canadian National Collection of Insects, Arachnids and Nematodes (CNC), Ottawa.
Additional material examined (n=20). U.S.A.: Tennessee: Sevier co.: 2ɗɗ, GSMNP, Sugarlands Quiet Walkway, N35°39.826’ W83°31.509’, 4 October 2006 – 1 April 2007, SN34C -CWD Rear 1, M. Ferro (GSMNP); Blount Co.: ɗ, Ψ, GSMNP, Tremont, N35°37.308’ W83°40.447’, 4 October 2006 – 1 April 2007, SN23B -CWD Rear 1, M. Ferro (GSMNP); 2ΨΨ, GSMNP, Tremont, N35°37.308’ W83°40.447’, 4 October 2006 – 1 April 2007, SN24B -CWD Rear 1, M. Ferro (GSMNP); Cocke Co.: ɗ (slide mounted), GSMNP, Albright Grove, N35°44.173’ W83°16.647’, 4 October 2006 – 1 April 2007, SP31C -CWD Rear 1, M. Ferro (LSAM); ɗ, GSMNP, Albright Grove, N35°44.173’ W83°16.647’, 4 October 2006 – 1 April 2007, SP31B - CWD Rear 1, M. Ferro (LSAM); Ψ, GSMNP, Albright Grove, N35°44.173’ W83°16.647’, 1 April – 28 June 2007, SP34B -CWD Rear 1, M. Ferro (LSAM); ɗ, GSMNP, Albright Grove, N35°44.173’ W83°16.647’, 13 April – 18 May 2006, SP31C -CWD Rear 1, M. Ferro (LSAM); ɗ, GSMNP, Albright Grove, N35°44.173’ W83°16.647’, 13 April – 18 May 2006, SP33B -CWD Rear 1, M. Ferro (LSAM); ɗ, GSMNP, Albright Grove, N35°44.173’ W83°16.647’, 18 May – 24 June 2006, SP34C -CWD Rear 1, M. Ferro (LSAM); ɗ, GSMNP, Albright Grove, N35°44.173’ W83°16.647’, 18 May – 24 June 2006, SP34A -CWD Rear 1, M. Ferro (LSAM); ɗ, GSMNP, Albright Grove, N35°44.173’ W83°16.647’, 5 October 2006, SP3 -CWD5 2 of 3, M. Ferro (LSAM); ɗ, GSMNP, ATBI Plot: Albright Grove Pitfall, 87 83 16 50 35 43 60, 19 – 30 January 2001, Parker, Stocks, Peterson (LSAM); Sevier Co.: ɗ, GSMNP, Laurel Falls, N35°40.808’ W83°36.067’, 10 April – 18 May 2006, SP12C -CWD Rear 1, M. Ferro (LSAM); Cocke Co.: Ψ, GSMNP, Albright Grove, N35°44.173’ W83°16.647’, 13 April – 18 May 2006, SP34A -CWD Rear 1, M. Ferro (LSAM); Ψ, GSMNP, Albright Grove, N35°44.173’ W83°16.647’, 13 April – 18 May 2006, SP35A -CWD Rear 1, M. Ferro (LSAM); Blount Co.: Ψ, GSMNP, Tremont, N35°37.308’ W83°40.447’, 4 October 2006 – 1 April 2007, SN34A -CWD Rear 1, M. Ferro (LSAM); Ψ, GSMNP, Tremont, N35°37.308’ W83°40.447’, 4 October 2006 – 1 April 2007, SN35A - CWD Rear 1, M. Ferro (LSAM).
Redescription. Length 2.5 – 2.8 mm. Body blackish brown, and somewhat glossy; posterior area of elytra and abdominal tergites II – IV somewhat brighter; antennomeres 1 – 3, mouthparts, legs, and abdominal tergite VIII yellowish brown (Fig. 1 e). Head pubescent, with microsculpture. Antennomeres 1 – 3 elongate, 4 subquadrate, 5 – 10 transverse (Fig. 6 a). Carina on each side of ventral surface of head complete, attaining gular suture.
Mouthparts. Labrum transverse, bearing 3 pairs of short setae, and 7 pairs of long setae, a-seta, b-seta, and many pores (Fig. 6 b). Labium bearing two distal setae in a longitudinal row in median area; a pair of setal pores, 2 pairs of real pores and several pseudopores present in lateral area (Fig. 6 c). Labial palpi bearing 12 setae (a – h, α – δ), γ-seta at least three times longer than α-, β-, δ-seta (Fig. 6 d). Mentum trapezoidal, bearing 4 pairs of main setae (b, u, v, w), 3 pairs of additional setae, and many pores (Fig. 6 e).
Thorax. Pronotum approximately 1.61 times wider than long, pubescent, microsculpture present. Mesoventrite with distinct reticulate microsculpture; incompletely carinate, carina extending approximately 1/ 3 length of mesoventrite. Metaventrite with setigerous punctures. Elytra wider than pronotum, approximately 1.66 times longer than wide, approximately 1.85 times longer than pronotum, latero-posterior margin emarginate, setigerous punctures present. Hind wings present.
Abdomen. Abdomen wider than elytra, widest at abdominal tergite VI. Abdominal tergites VI approximately 1.82 times wider than long. Male abdominal tergite VII – VIII with single median elongate tubercle (Fig. 6 f); tergite VIII with posterior margin emarginate, bearing 4 pairs of main setae, and many additional short setae and pores (Fig. 6 f). Male abdominal sternite VII with many pores in anterior one-fourth; sternite VIII with posterior margin produced, bearing 6 pairs of main setae, and many additional short setae and pores (Fig. 6 g). Female abdominal tergite VIII with posterior margin shallowly emarginate, bearing 4 pairs of main setae, and many additional short setae and pores (Fig. 6 h). Female abdominal sternite VIII with posterior margin rounded, bearing 6 pairs of main setae, and many additional short setae and pores (Fig. 6 i).
Genitalia. Paramere as in Fig. 6 j. Median lobe as in Fig. 6 k. Spermatheca as in Fig. 6 l.
Type locality. North Carolina (Haywood County).
Distribution. CANADA: New Brunswick, Nova Scotia, Quebec; USA: North Carolina, Tennessee. Locations where L. carolinensis has been collected in GSMNP as in Map 1.
Habitat. This species appears to be associated with CWD. One specimen was collected using a pitfall trap and one specimen was sifted from CWD decay class V. All other specimens emerged from CWD collected in both primary and secondary forests: six from decay class I, ten from decay class II, and two from decay class III – IV. No specimens were collected by sifting leaf litter at the same times and locations.
description: Published as part of Park, Jong-Seok, Carlton, Christopher E. & Ferro, Michael L., 2010, Diversity and taxonomic review of Leptusa Kraatz (Coleoptera: Staphylinidae: Aleocharinae) from Great Smoky Mountains National Park, U. S. A., with descriptions of four new species, pp. 1-27 in Zootaxa 2662 on pages 10-14, DOI: 10.5281/zenodo.199052