Nepaletricha sigma Hippa & ŠEVýÍK 2014, sp. nov.
Creators: name: Hippa, Heikki
name: ŠEVýÍK, Jan
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Rangomaramidae
Nepaletricha
Nepaletricha sigma

description: Nepaletricha sigma sp. nov.   
(Figs 2B, 5A–D)  
 Type material. HOLOTYPE: J, INDIA: ARUNACHAL PRADESH: Etalin vicinity, 700 m, 28°36މ56ފN, 95°53މ21ފE, 12–25.v.2012, L. Dembický leg., AP 3 / 2012, MZM Expedition (MZMC). PARATYPE: J, INDIA: ARUNACHAL PRADESH: Hunli vicinity, 1300± 100m, 28°19މ32ފN, 95°57މ31ފE, 26.v.–1.vi.2012, L. Dembický leg., AP 4 / 2012, MZM Expedition (JSOC), GenBank accession numbers for its DNA sequences are KJ136697 (12S) and KJ136733 (16S), see ŠEVýÍK et al. (2014).   
  Description. Male. Head . Distal part of antennae lacking beyond flagellomere 1 or 3. Colour of head brown, mouthparts and antenna slightly paler. Face with 5 setae medioventrally. Maxillary palpus, Fig. 2B: palpomere 2 with dome-like sensilla mesially on distal part, palpomere 3 with scattered hyaline sensilla ventrolaterally. Antenna similar to Nepaletricha montana (HIPPA et al. 2009: Fig. 1B): scapus with 2 setae, flagellomere 1 7.1 times longer than broad.   
 Thorax. Brown. Similar to N. furcata (HIPPA et al. 2009: Fig. 1A): scutum with 6 stronger lateral setae plus a few weaker ones posteriorly which are poorly visible in the mount, 11–12 dorsocentral setae and 0 acrostichal setae, scutellum with 4 setae and prothoracic epimeron with 5–6 setae. Legs. Distal part beyond trochanters lost on all legs. Colour of coxae and trochanters brown. Coxae similar to N. furcata (HIPPA et al 2009: Fig. 1A) but their lateral setae more distinctly in a single row. Wing. Similar to N. furcata (HIPPA et al. 2009: Fig. 2B): Sc setose dorsally, one seta ventrally on the left side, R and R 1 setose dorsally, R 1 distally setose on both sides, R 4+5 setose dorsally and ventrally, stM, M 1 and M 2 setose dorsally and ventrally, CuA 1 setose dorsally, apically also ventrally, CuA 2 setose dorsally and A 1 setose dorsally and ventrally; wing membrane setose dorsally and ventrally. Colour of wing and halter brownish. Wing length 2.7 (3.0) mm. Abdomen. Brown. Segment 8, Fig. 5 D: note the lateral setae on sternite. Hypopygium, Figs. 5A,B,C: Tergite 9 posteriorly with a pair of curved lobes apically bearing 3 megasetae. Sternite 9 posterodorsally with an S-shaped setose lobe with a branch on apical half, posteroventrally with a plate-like setose lobe. Gonostylus bilobed, with a few setae on both. Aedeagus not visible in detail in the mount, apparently in dorsal or ventral view arrow-shaped as in Fig. 4D. Tegmen (parameres) not visible in detail in the mount. Cerci narrow, with a few long setae. Sternite 10 medially divided, each half with two long posterior setae.   
 Female. Unknown.   
 Etymology. The name sigma is derived from the eighteenth letter of the Greek alphabet and refers to the sigma-shaped lobe posterolaterally on the gonocoxa; noun in apposition.   
 Discussion. Nepaletricha sigma is similar to N. lobosa sp. nov. For further discussion, see under the latter.
description: Published as part of Hippa, Heikki & ŠEVýÍK, Jan, 2014, Notes on Nepaletricha (Diptera: Sciaroidea incertae sedis), with description of three new species from India and Vietnam, pp. 729-739 in Acta Entomologica Musei Nationalis Pragae 54 (2) on pages 737-738, DOI: 10.5281/zenodo.5299805