Ischnosoma nepalicum
Creators: name: Kocian, Matúš
name: Schülke, Michael
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Ischnosoma
Ischnosoma nepalicum

description: Ischnosoma nepalicum (Coiffait, 1982)
Figs 26, 37, 44.
NEPAL: Baglung: Daulaghiri mountains, Baglung Lekh, 25 km W Baglung, primary forest, 2800–3000 m, 15.V.2004, leg. J. Schmidt, 4 exs. (cKle, cSch); Dolpa – Jumla: Pass Bavarla Lagna, 3200–3800 m, 29°10'N, 82°28.5'E, 6.VI.1997, leg. M. Hartmann, 2 exs. (NME); Pass NW Chaurikot, 3800 m, 17.V.1995, leg. M. Hartmann, 1 ex. (NME); Jumla: Khali–Lagna Pass, 3500 m, 16.–17.VI.1998, leg. W. Schawaller, 2 exs. (SMNS); Ghurchi–Lagna Pass, 3500 m, 14.VI.1998, leg. W. Schawaller, 1 ex. (SMNS); Gothichaur valley, forest, 2900– 3800 m, 29°12'N, 82°18.5'E, 11.VI.1997, leg. M. Hartmann, 1 ex. (NME); SE Churta, sifted, 3400 m, 6.V.1995, leg. J. Weipert, 1 ex. (NME); 6 km E Churta, deciduous forest, 3200 m, 18.V.1995, leg. M. Hartmann, 2 exs. (NME), 1 ex. (cSch); 10 km E Churta, 3500 m, 5.–6.V.1995, sifted, leg. M. Hartmann, 2 exs. (NME); 3 km E Churta, 29°10'53''N, 82°28'00''E, 6.VI.1987, 3400 m, GSB, leg. A. Weigel, 1 ex. (NME), 1 ex. (cSch); before Pass SE Churta, 3400 m, pitfall traps, 17.V.1995, leg. J. Weipert, 4 exs. (NME); N Maharigaon, 3250 m, 29°20'N, 82°22'E, 8.–9.VII.1999, leg. A Weigel, 1 ex. (NME); Talphi, NE Maharigaun, 20.VI.1997, 3300 m, GSB, leg. A. Weigel, 2 exs. (NME); 10 km SE Churta, Bavarla Langna Pass, 29°09'50''N, 82°28'53''E, 6.VI.1997, 3800 m, leg. A. Weigel, 1 ex. (NME); Sinja Khola between Chauta and Neurigad, leg. H. Franz, 1 ex. (cSch); Dampelek near Jumla, [Pa 220/ Pa 245], leg. H. Franz, 2 exs. (NHMW); Dzunda Khola valley near Talphi, 3000–3500 m, [Pa 190], leg. H. Franz, 1 ex. (NHMW); Kaski: Mardi Himal, W of Mardi Khola, 2950–3100 m, 28°26'02''N, 83°52'05''E, 13.V.2001, leg. G. Hirthe, 1 ex. (cHir); Annapurna mountains, Ghorepani– Deurali, 2800–3000 m, 2.V.1999, leg. C. Krüger & G. Hirthe, 1 ex. (cHir); Annapurna region, Mardi Himal, W Mardi Khola, 3400–3600 m, 28°26'02''N, 83°52'05''E, 13.–14.V.2001, leg. G. Hirthe, 1 ex. (cHir); same data, but 2950–3100 m, 13.V.2001, 7 exs. (cHir), 1 ex (cKoc); Kathmandu: Mount Sheopuri, 2100–2300 m, 25.VI.1988, Quercus semecarpifolia forest, leg. J. Martens & W. Schawaller [306], 1 ex. (SMNS), 1 ex. (cSch); Phulchoki near Kathmandu, leg. H. Franz, 1 ex. (NHMW); Lamjung: Manaslu massif, Barapokhari Lekh, 23 km NE Besishahar village, 28°21'N, 84°33'E, 14.IX.2000, 3800–4100 m, sieved from moss and rhododendron leaf litter, leg. A. Hetzel, 3 ex. (cFel); Manaslu massif, Barapokhari Lekh, 12 km NE Besishahar village, 28°18'N, 84°28'E, 3100 m, near Lake Barapokhari, sieved from moss, 10.IX.2000, leg. A. Hetzel, 2 exs. (cFel); Mustang: Dhaulagiri mountains, Hile Kharka, 3000–3100 m, 28°29'15''N, 83°34'28''E, 9.V.2009, leg. J. Schmidt, 1 ex. (NME); S slope Dhaulagiri Mts., NE slope Asnam Duri, 3100–3300 m, 28°31'50''N, 83°27'57''E, 14.V.2009, leg. J. Schmidt, 6 exs. (NME), 2 exs. (cKoc); Dhaulagiri SE slope, SW slope of Lete Pass, 13.V.2002, 2700–3000 m, leg. J. Schmidt, 1 ex. (cSch); SW Dhaulagiri, W Jaljala, 3300–3400 m, 28°30'44''N, 83°13'15''E, 20.V.2012, leg. J. Schmidt, 4 exs. (NME), 1 ex. (cKoc); same data but: 3150 m, 23.IX.12, 28°30'05''N, 83°11'48''E, 2 exs. (NME); SW Dhaulagiri Himal. near Jaljala La, 3300–3500 m, 12./13./ 21.V.2012, 28°30'N, 83°15'E, leg. J. Schmidt, 5 exs. (NME), 1 ex. (cKoc), 1 ex. (cSch); Kali Gandaki valley, upper Lete, 19.V.2002, 2800 m, leg. J. Schmidt, 5 exs. (NME, cSch); Parbat: between Deorali and Chitre, 2700 m, 1.–2.V.1995, leg. J. Martens & W. Schawaller, 5 exs. (SMNS), 1 ex (cKoc).
Remarks. I. nepalicum is closely related to three very similar apterous and endemic Nepalese species of the I. pictum species group: I. nepalense, I. jaljalense, and I. jumla sp. n. In a previous key (Kocian, 2003), the absence of an ocular puncture and seta was used for distinguishing I. nepalicum from similar species. In the material listed above we found specimens of I. nepalicum with similarly developed ocular puncture and seta as in I. nepalense. Therefore, a reliable identification is possible only based on the male sexual characters, above all the chaetotaxy of the male sternite VIII in combination with the shapes of the internal structures of the aedeagus. The shape of large paired sclerites in the internal sac of the aedeagus is characteristic in lateral view, but well visible only when extruded (Figs 25–27). However, since none of the previously studied specimens of I. jaljalense shows a well visible extruded internal sac of aedeagus, the validity of this species requires revision.
Widespread in Nepal (Fig. 44).
description: Published as part of Kocian, Matúš & Schülke, Michael, 2018, New species and records of Ischnosoma Stephens (Coleoptera: Staphylinidae: Tachyporinae) from Nepal, pp. 501-522 in Zootaxa 4442 (4) on page 515, DOI: 10.11646/zootaxa.4442.4.1, http://zenodo.org/record/1304822