Omphreus (Omphreus) morio durmitorensis Curcic & Sciaky

Curcic, Srecko, Sciaky, Riccardo, Antic, Dragan & Vesovic, Nikola, 2015, The genus Omphreus in Bosnia and Herzegovina and Montenegro, with two new subspecies of O. morio (Coleoptera, Carabidae, Omphreini), ZooKeys 509, pp. 123-139 : 128-131

Taxon classification Animalia Coleoptera Carabidae

Omphreus (Omphreus) morio durmitorensis Curcic & Sciaky ssp. n. Figures 9-13

Material examined.

Holotype male labeled as follows: "northwestern Montenegro, Mt. Durmitor, Sedlo pass, 2,100-2,200 m a.s.l., near Žabljak, 28. VI– 17.VII.2014, from pitfall traps, leg. S. Ćurčić” (white label, printed) / Holotypus Omphreus (Omphreus) morio durmitorensis ssp. n. S. Ćurčić & R. Sciaky det. 2014" (red label, printed) (IZFB). Paratypes: one female, same data as for holotype (IZFB); one male labeled as follows: "northwestern Montenegro, Mt. Durmitor, Sedlo pass, 2,100 m a.s.l., 28-29.VI.2014, from pitfall traps, leg. S. Ćurčić & D. Antić” (IZFB); one male labeled as follows: "northwestern Montenegro, Mt. Durmitor, Žabljak, 1,950 m a.s.l., VIII.2006, leg. P. Zanandrea" (CRS); one female labeled as follows: "northwestern Montenegro, Mt. Durmitor, Sedlo pass, 2,200 m a.s.l., 07.VIII.2007, leg. F. Sandel" (CRS). All paratypes are labeled with white, printed locality labels and with red printed labels "Paratypus Omphreus (Omphreus) morio durmitorensis ssp. n. S. Ćurčić & R. Sciaky det. 2014".

Description.

Size large: TL: R 17.73-18.91 mm (M 18.13 mm). Body elongate; elytra ovate (Figure 9). Body color black, mouthparts, apical antennomeres, and tarsi black-brownish. Tegument shiny, except slightly matt elytra.

Head rounded, somewhat elongated [HW/HL: M 0.95 (R 0.93-0.99)], shorter and narrower (HW/PW: M 0.695) than pronotum (Figure 9). Head beyond eye level somewhat constricted. Labrum broad, medially rounded, carrying four setae. Epistome huge, concave anteriorly, with two setae. Both vertex and occiput wrinkled. Frontal foveae deepened and long. Gula bisetose. Mandibles elongated, sickle-formed, broadened basally. Labial palpomere 1 short, without setae. Labial palpomeres 2 and 3 longer. Both the labial palpomere 3 and maxillar palpomere 3 broadened distally and densely pubescent. AL: M 10.38 mm (R 10.07-10.64 mm). Antennae pubescent from antennomere 4. AL/TL: M 0.57 (R 0.54-0.60). Antennomere 1 club-like, sharply widened distally, with a few long setae distally, somewhat shorter than the following three antennomeres combined. Antennomere 2 slightly shorter than antennomere 3.

Pronotum sub-campaniform, elongate, PW/PL: M 0.91 (R 0.90-0.92). Fore angles somewhat prominent, rounded, hind angles obtuse, somewhat rounded (Figure 9). Lateral margins well developed, thickened, arcuate anteriorly, then sinuate and narrowing posteriorly. Anterior pronotal margin somewhat concave, while the base strongly concave. Pronotum widest in front of the fore third. Lateral furrows narrow and shallow, with four anterior setae, one median seta, and one posterior seta each. Median furrow long and deep. Basal foveae deep and long, slightly shorter than half of pronotum length. Pronotal disc somewhat convex proximally.

Elytra ovate, relatively long, arcuate laterally, EW/EL: M 0.56 (R 0.53-0.58) (Figure 9). EL/EW: M 1.79. EW: M 5.94 mm in males, 6.12 mm in females. Elytral striae shallow, weakly punctate, points somewhat deeper basally; elytral intervals flattened. Scutellum large, triangular; scutellar stria present, but without scutellar punctures. Elytra widest slightly below the middle; one setiferous puncture in interval 7 basally (close to stria 6), four or five setiferous punctures in interval 7 medially (close to stria 7), and two setiferous punctures situated on stria 7 apically on each elytron; the punctures deep and large. Shoulders obtusely rounded. Umbilicate series regular, with the setae densely distributed. Elytral disc somewhat convex distally.

Protarsomeres 1 and 2 widened in males. Metacoxae long and rounded. Tarsal claws elongated, glabrous, without teeth (Figure 9).

Aedeagus long, median lobe strongly widened sub-apically in dorsal view (Figure 10), while arcuate, moderately widened and with a shallow concavity in the sub-apical part in lateral view (Figure 11), with a straight short rounded triangular apex (Figures 10 and 11). Parameres wide, the right being much huger (Figure 10). Basal bulb narrow and elongated (Figures 10 and 11).

Male abdominal sternite IX (urite) large, sub-triangular (Figure 12).

Both gonocoxites and gonosubcoxites IX as presented in Figure 13. Gonocoxites IX wide and elongated, somewhat curved, gradually narrowing distally, each with a pointed apex, basally joined with massive rounded gonosubcoxites IX.

Differential diagnosis and remarks.

The new subspecies is compared here with the morphologically nearest subspecies of Omphreus (Omphreus) morio . These are Omphreus (Omphreus) morio beckianus , Omphreus (Omphreus) morio serbicus , and Omphreus (Omphreus) morio sandeli ssp. n. In all these subspecies the first antennomere is club-like distally, somewhat shorter than the following three antennomeres combined ( Ganglbauer 1888, Winkler 1933).

Omphreus (Omphreus) morio durmitorensis ssp. n. differs from Omphreus (Omphreus) morio beckianus in the shape of the elytra (arcuate laterally vs. somewhat rounded laterally), the elytra length/width ratio (M 1.79 vs. around 1.66), and the body length (R 17.73-18.91 mm vs. 16-18 mm) ( Ganglbauer 1888, Winkler 1933). The former taxon is distributed on Mt. Durmitor (northwestern Montenegro), while the latter inhabits Mt. Visočica (central Bosnia and Herzegovina) (the type locality) ( Ganglbauer 1888). Apfelbeck (1904) and Drovenik (1984) recorded the presence of an Omphreus on Mt. Durmitor reported as Omphreus (Omphreus) morio beckianus . While the former author recorded it for the mountain without precise localities, the latter author found it in several different sites (Crno Jezero Lake surroundings, forests below Mali Štulac, Zminje Jezero Lake surroundings, Veliki Štulac, Ališnica, Međed, Velika Karlica, Savin Kuk, Lokvice, Bobotov Kuk, Dobri Do, Sedlo, Todorov Do, Prutaš, Škrčka Jezera Lakes surroundings, Bolj, forest below Ćurevac, Nagorje, and Šljeme) ( Apfelbeck 1904, Drovenik 1984). On the basis of the material collected from Mt. Durmitor (at Sedlo and Žabljak sites) loaned by a few colleagues, as well as the one collected by the first and third author (S. Ć. and D.A.), we have concluded that the taxon from Mt. Durmitor actually represents a new subspecies, Omphreus (Omphreus) morio durmitorensis ssp. n.

Omphreus (Omphreus) morio durmitorensis ssp. n. differs from Omphreus (Omphreus) morio serbicus in the shape of the elytra (elongate, arcuate laterally vs. short, rounded laterally), the elytra length/width ratio (M 1.79 vs. around 1.50), and the body length (R 17.73-18.91 mm vs. 15-16 mm) ( Winkler 1933). Furthermore, they inhabit quite distant areas: Omphreus (Omphreus) morio durmitorensis ssp. n. is found in northwestern Montenegro (Mt. Durmitor), while Omphreus (Omphreus) morio serbicus lives in southwestern Serbia (Mt. Murtenica and Mt. Zlatibor) ( Winkler 1933).

The diagnostic differences between Omphreus (Omphreus) morio durmitorensis ssp. n. and Omphreus (Omphreus) morio sandeli ssp. n. are presented in the differential diagnosis of the latter.

Etymology.

The new subspecies is named after Mt. Durmitor, its terra typica.

Distribution.

So far known only from the type locality, Mt. Durmitor, northwestern Montenegro.

Habitat.

The subspecies prefers high-altitude habitats (1,950-2,200 m a.s.l.) on Mt. Durmitor in northwestern Montenegro. The type series of the new subspecies was collected by pitfall traps filled with alcoholic vinegar, placed at different sites on the border between alpine meadows and rocks, up to a timberline on Mt. Durmitor.