Leptusa pseudosmokyiensis
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Ordo: Coleoptera
Familia: Staphylinidae
Genus: Leptusa
Name
Leptusa pseudosmokyiensis Park & Carlton – Wikispecies link – Pensoft Profile
- Leptusa pseudosmokyiensis Park, Jong-Seok, 2010, Zootaxa 2662: 6-8.
Materials Examined
Type material. Holotype: U.S.A.: Tennessee: ɗ, “ USA: TN: Sevier Co. GSMNP Laurel Falls N 35 ° 40.808 ’2 April 2007W 83 ° 36.067 ’ SP 1 Litter 2 of 3 -M Gimmel”, “ HOLOTYPE, Leptusa pseudosmokyiensis Park and Carlton, des. 2010 ” (FMNH). Paratypes (n= 2): U.S.A.: Tennessee: ɗ, “ USA: TN: Sevier Co. GSMNP Porters Creek N 35 ° 40.790 ’5 April 2007W 83 ° 23.855 ’ SP 2 Litter 3 of 3 -M Gimmel” (GSMNP); ɗ (slide mounted), “ USA: TN: Sevier Co. GSMNP Laurel Falls N 35 ° 40.808 ’2 April 2007W 83 ° 36.067 ’ SP 1 Litter 3 of 3 -M Gimmel” (LSAM).
Diagnosis
Diagnosis.Leptusa (Adoxopisalia) pseudosmokyiensis may be distinguished from L. (A.) smokyiensis by external morphology. We did not compare genitalia because of the absence of available specimens of L. (A.) smokyiensis. The new species differs from L. (A.) smokyiensis in having distinctively longer antennomeres 4 – 5 (Fig. 3 a), and a short mesoventral carina. Additionally, the mouthparts of L. (A.) pseudosmokyiensis differ from L. (A.) smokyiensis in possessing short (as long as α-, β-, δ-seta) γ-seta on the labial palpi (Fig. 3 d), labrum with more setae (Fig. 3 b), and an incomplete carina on each side of midline of ventral surface of head, fading before attaining the gular suture.
Description
Description of male. Length 2.8 – 2.9 mm. Body blackish brown; antennomeres 1– 3, 11, mouthparts, legs, and tergites II – V brown (Fig. 1 b). Head somewhat glossy, pubescent, with microsculpture. Antennomeres 1 – 3 elongate, 4 – 5 longer than wide, 6 – 7 subquadrate, and 8 – 10 transverse (Fig. 3 a). Carina on each side of ventral surface of head incomplete, fading before attaining gular suture. Mouthparts. Labrum transverse, bearing 3 pairs of short setae, and 8 pairs of long setae, a-seta, b-seta, and many pores (Fig. 3 b). Labium with two distal setae in a longitudinal row, and two pores in median area; a pair of setal pores, 2 pairs of real pores and several pseudopores present in lateral area (Fig. 3 c). Labial palpi bearing 12 seta (a – h, α – δ) (Fig. 3 d). Mentum trapezoidal, bearing 4 pairs of main setae (b, u, v, w), and many pores (Fig. 3 e). Thorax. Pronotum wider than head, and approximately 1.25 times wider than long; somewhat glossy, pubescent, with microsculpture. Mesoventrite with distinct reticulate microsculpture, and incompletely carinate, reaching 1 / 3 length of mesoventrite. Metaventrite with setigerous punctures. Elytra approximately 1.49 times longer than wide, and approximately 1.25 times longer than pronotum; latero-posterior margin emarginate, somewhat glossy, and pubescent; setigerous punctures present. Hind wings present. Abdomen. Abdomen glossy, wider than elytra, widest at abdominal tergites VI – VII. Abdominal tergites VI approximately 1.83 times wider than long; tergites VII with single median elongate tubercle; tergite VIII with posterior margin shallowly emarginate, bearing 4 pairs of main setae, and many additional short setae and pores (Fig. 3 f). Male abdominal sternite VII with many pores in anterior one-tenth; sternite VIII with posterior margin produced, bearing 7 pairs of main setae, and many additional short setae and pores (Fig. 3 g). Genitalia. Paramere as in Fig. 3 h. Median lobe as in Fig. 3 i. Female. Unknown.
Distribution
Distribution.USA: Tennessee. Locations where L. (A.) pseudosmokyiensis has been collected in GSMNP as in Map 1.
Etymology
Etymology. The specific epithet refers to the superficial similarity of this species to L. (A.) smokyiensis. Habitat. All three specimens of this species were collected by sifting leaf litter in old growth forests. No specimens were collected by sifting and emergence trapping from CWD (decay classes I – V) at the same times and locations.
Taxon Treatment
- 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: 6-8. doi
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