Leptusa (Adoxopisalia) opaca Casey, 1893

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, Zootaxa 2662, pp. 1-27 : 3-6

publication ID	https://doi.org/ 10.5281/zenodo.199052
DOI	https://doi.org/10.5281/zenodo.5020579
persistent identifier	https://treatment.plazi.org/id/03E2BD70-FFFB-8064-FF5C-2EAFFED04B8E
treatment provided by	Plazi
scientific name	Leptusa (Adoxopisalia) opaca Casey, 1893
status

Treatment

Leptusa (Adoxopisalia) opaca Casey, 1893 View in CoL

( Figs. 1 View FIGURE 1 a, 2a – k, Map 1)

Leptusa opaca Casey, 1893: 364 View in CoL ; Fenyes, 1920: 123; Bernhauer & Scheerpeltz, 1926: 555; Pace, 1989: 130; Gusarov, 2003: 118; Klimaszewski et al., 2005: 46; Klimaszewski et al., 2007: 815, 826; Gouix & Klimaszewski, 2007: 61. Leptusa seminitens Casey, 1893: 364 View in CoL ; Bernhauer & Scheerpeltz, 1926: 555 (as synonym of L. opaca View in CoL ).

Material examined (n=2). U.S. A: Tennessee: Sevier Co.: ɗ, GSMNP, Twin Creeks, FIT #1, 26 June – 1 July 2001, C. Carlton, V. Moseley, A. Tishechkin ( LSAM); North Carolina: Haywood Co.: Ψ (slide mounted), GSMNP, AHSLC @ Purchase Knob, FIT, 17S 312021 3940123, 17 August 2005, T. Grannan ( GSMNP).

Redescription. Length 3.1 – 3.2 mm. Head, pronotum, and elytra blackish brown; antennomeres 1 – 2, 11, mouthparts, tibia, tarsus, and posterior part of abdominal tergites II – V yellowish brown; femora brown ( Fig. 1 View FIGURE 1 a). Head opaque, pubescent, with microsculpture. Antennomeres 1 – 3 elongate, 4 – 5 longer than wide, 6 – 7 subquadrate, and 8 – 10 transverse ( Fig. 2 View FIGURE 2 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. 2 View FIGURE 2 b). Labium with two distal setae in a longitudinal row, and several pores in median area; a pair of setal pores, 2 pairs of real pores and several pseudopores present in lateral area ( Fig. 2 View FIGURE 2 c). Labial palpi bearing 12 setae (a – h, α – δ), γ-, δ-seta at least three times longer than α-, β-seta ( Fig. 2 View FIGURE 2 d). Mentum trapezoidal, bearing 4 pairs of main setae (b, u, v, w), and 3 pairs of additional setae; many pores present in middle area ( Fig. 2 View FIGURE 2 e).

Thorax. Pronotum approximately 1.61 times wider than long, pubescent, opaque, with microsculpture. Mesoventrite with distinct reticulate microsculpture. Metaventrite with setigerous punctures. Elytra wider than pronotum and abdomen, approximately 1.62 times longer than wide, approximately 1.95 times longer than pronotum, latero-posterior margin emarginate, opaque, and pubescent. Hind wings present.

Abdomen. Abdomen glossy, as wide as elytra. Abdominal tergite VI approximately 1.79 times wider than long; tergites VII – VIII with single median elongate tubercle ( Fig. 2 View FIGURE 2 f); tergite VIII with posterior margin shallowly emarginate, bearing 4 pairs of main setae, and many additional short setae and pores ( Fig. 2 View FIGURE 2 f). Male abdominal sternite VIII with posterior margin produced and approximately bearing 15–16 main setae, and many additional short setae and pores ( Fig. 2 View FIGURE 2 g). Female abdominal tergite VIII with posterior margin shallowly emarginate, bearing 4 pairs of main setae, and many additional short setae and pores ( Fig. 2 View FIGURE 2 h).

Genitalia. Paramere as in Fig. 2 View FIGURE 2 i. Median lobe as in Fig. 2 View FIGURE 2 j. Spermatheca as in Fig. 2 View FIGURE 2 k.

Type locality. Leptusa opaca : Pennsylvania.

Distribution. CANADA: New Brunswick, Nova Scotia, Ontario, Prince Edward Island, Quebec; USA: Arkansas, Georgia, New York, North Carolina, Pennsylvania, Rhode Island, Tennessee, Wisconsin. Locations where L. opaca has been collected in GSMNP as in Map 1.

Habitat. Both specimens were collected from secondary forests during mid to late summer using flight intercept traps.