Nebria (Epinebriola) rupina Huber & Schmidt, 2017, sp. nov.
Creators: name: Huber, Charles
name: Schmidt, Joachim
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Nebria
Nebria rupina

description: Nebria (Epinebriola) rupina sp. nov. (Fig. 21)
Holotype ♂: Nepal, Manaslu Himal, Rumche Tal to Rupina La pass, 4200 mNN, 24. 6. 2001, leg. S. Tamang (cSCHM).
Paratypes: 14 ♂ 7 ♀, same data as holotype (NMBE, cSCHM); 1 ♂ Nepal, Manaslu Himal, Dudh Pokhari, 4300–4400 m, 30. 6. 2001, leg. S. Tamang, H. S. Galel & S. Gurung (cSCHM); 1 ♂ Nepal, Gorkha Dist., zw. Tabruk und Rupina La, 4400–4500 m, 9. Aug. 1983, leg. Martens & Schawaller (SMNS).
Body length 9–10 mm. Colour dark brown, appendages of head and antennae brown. Pronotum brown, lighter than the head. Legs brown.
Head with a shallow transverse impression behind the eyes. Labrum with anterior margin faintly bisinuate, bearing six setae. The angles of the labrum rounded but distinct. Apical margin of clypeus straight. Frons transversally wrinkled, vertex impunctate. Eyes prominent, frons above the eyes longitudinally wrinkled. Antennae long and slender extending to one third of the elytra. Antennal scape elongate, as long as the eye's diameter, basally narrowed, subcylindrical apically, with one dorsal seta. 2 nd antennomere with one seta ventroapically. Apical third of the 4 th antennomere with a few short setae in addition to the apical collar of long setae; the additional ones sometimes hardly visible. Penultimate labial palpomere trisetose. Ligula long, spiny, with two lateral setae. Mentum with a bifid medial tooth. Submentum with a row of 12 setae. Microreticulation of the head isodiametric.
Pronotum faintly transverse, ratio width/length of the pronotum = 1.30. Lateral margin convex, rounded to the anterior angles, rectilinearly narrowed to the posterior angles (Fig. 31B). The posterior angles just a little narrower than the anterior angles. Lateral explanation narrow with a conspicuous groove, broadened apically and basally. Lateral margin basally obliquely upturned but not blade-like. Posterior angles acute, protruding posteriorly. Anterior angles faintly rounded, weakly protruding. Basal margin bisinuate. Pronotal disc weakly convex. Basal fovea deep, posterior transverse impression distinct, anterior transverse impression and median line shallow. Basal fovea, anterior and posterior transverse sulci and lateral groove impunctate. Apical margination of the pronotum restricted to lateral one-fourths, merges with the anterior angle. Base of the pronotum not margined. Basolateral seta present. One midlateral seta in the apical half of the pronotum, inserted in a distinct groove at the inside of the slightly upturned margin. Microreticulation of the pronotum isodiametric, impunctate on disc. Proepisternum smooth. Prosternal process flattened and unmargined.
Elytral silhouette slender, ellipsoid, widest behind the middle. Lateral margin subrectilinear at basal third. Shoulder distinct. Elytral apex acutely rounded. Apical carina present. Basal margination straight. Humeral carina present. Striae distinct on disc, weakly punctate. Striae obliterate towards the apex; striae 7 and 8 scarcely visible. Intervals scarcely convex, more convex on disc; interval 3 without setae. Scutellar seta absent. Microreticulation isodiametric or faintly oblong. Mesepisterna smooth. Metepisterna smooth, 1.8 times as long as wide. Metacoxa with two basal and one apical setae. Hindwings present as a strap-like vestige.
Sternum 3 medially asetose. Sterna 4–6 each with 4–5 posterior paramedial setae. Anal sternum with two paramedial setae in the male. All sterna with faint impressions laterally.
Legs long and slender. All tarsi dorsally glabrous. Metatarsomere 4 with a ventroapical tooth. Meso- and metatarsomeres 2–4 ventroapically with long setae. All tarsomeres 5 ventrally with two rows of 4–5 short setae. Metatarsomere 5 as long as the metatarsomeres 3+4.
Male genitalia: Edeagus (Fig. 20B): Basal part of the median lobe wide, the basolateral lobes small. Mid-shaft slender, strongly curved at base, moderately curved and progressively narrowed to the apex. Apex straight, in front of the tip on the ventral side faintly convex. Tip of the apex long and slender. Apex deflected to the left.
Female genitalia: Gonocoxa (Fig. 10B): Gonocoxite 1 slight and relatively short, gonocoxite 2 elongate-triangular, two-thirds the length of gonocoxite 1, slightly narrowed near base. Apex acuminate, dorsally arcuate, dorsally faintly grooved. Ventral preapical insertion furrow elongate-oval, with two nematiforme setae. Gonocoxites ventrally unjointed and continuously sclerotized, dorsally separated by a membranous area.
Body ratios: hea.w/fro.w = 1.51±0.024 (1.48–1.55); prm.w/hea.w = 1.16± 0.018 (1.15–1.19); prm.w/prp.w = 1.53±0.050 (1.45–1.59); pra.w/prp.w = 1.13± 0.042 (1.06–1.19); ely.w/prm.w = 1.61±0.046 (1.56–1.70); prm.w/prm.l = 1.30± 0.032 (1.25–1.33); ely.l/ely.w = 1.63± 0.030 (1.59–1.68).
Etymology: The specific epithet (noun in apposition) refers to the type locality Rupina La.
Diagnosis: N. rupina sp. nov. stands out within the subgenus Epinebriola by the additional apical pubescence of the 4 th antennomere and the presence of the basolateral seta of the pronotum. An apical pubescence of the 4 th antennomere is rarely present in the sympatric species N. montisanimae sp. nov. (see below), but the basolateral seta of the pronotum is absent. Furthermore, the lateral margin of the pronotum is rounded to the anterior angles in a lesser extent than in than N. montisanimae sp. nov., and the apex of the anterior angle of the pronotum is without ridge along the lateral groove (in N. montisanimae sp. nov. the apical margination of the pronotum merges with a distinct rigde which continues to the lateral seta). In N. rupina sp. nov. the scutellar setae and and the setae of the 3 rd elytral interval are absent (present in N. montisanimae sp. nov.), N. rupina sp. nov. is distinctly smaller than N. montisanimae sp. nov., and the elytra are elongate-ovoid in contrast to the ovoid elytra in N. montisanimae sp. nov.
Fig. 21: Habitus of Nebria (Epinebriola) rupina sp. nov. Male paratype.
Remarks: The apical pubescence of the 4 th antennomere is rare in the genus Nebria. It is restricted to the subgenus Paranebria (two species), to most species of the Himalayan subgenus Patrobonebria, and to a few isolated species in different subgenera (Ledoux & Roux 2005). It has not been reported for the subgenus Epinebriola so far. In N. rupina sp. nov. as well as in N. montisanimae sp. nov. several characters speak for an assignment to the subgenus Epinebriola (and not to Patrobonebria) such as the weak head constriction behind the eyes (distinct in Patrobonebria), the impunctate head (punctate in Patrobonebria), the penultimate trisetose palpomere (bisetose in Patrobonebria), and the three dilated protarsomeres in the male (two in Patrobonebria).
Distribution (Fig. 41): Known only from the type locality, the pass Rupina La on eastern slope of Himal Chuli (eastern part of the Manaslu Himal mountain range), western Central Nepal Himalaya.
Habitat: Not noted.
description: Published as part of Huber, Charles & Schmidt, Joachim, 2017, Notes on the Nebria subgenus Epinebriola K. DANIEL, 1904 with the description of Barbonebriola subgen. nov. and 13 new species from the Himalaya-Tibet orogen (Coleoptera, Carabidae, Nebriini), pp. 1-85 in Contributions to Natural History 36 on pages 38-42, DOI: 10.5169/seals-787049, http://zenodo.org/record/6285683