Ochthephilus lenkoranus ( Scheerpeltz, 1950 )

Makranczy, György, 2014, Revision of the genus Ochthephilus Mulsant & Rey, 1856 (Coleoptera: Staphylinidae, Oxytelinae), Revue suisse de Zoologie 121 (4), pp. 457-694 : 540-545

Ochthephilus lenkoranus ( Scheerpeltz, 1950) Figs 164-168, 177-178, 526, 570

Ancyrophorus lenkoranus Scheerpeltz, 1950: 57 , 68.

Ochthephilus lenkoranus (Scheerpeltz) . – Herman, 1970: 384. – Gildenkov, 2000a: 1187. – Gildenkov, 2000b: 849. – Makranczy, 2001: 180.

Ancyrophorus swaneticus Yablokov-Khnzorian, 1974: 60 , syn. nov.

TYPE MATERIAL EXAMINED: Ancyrophorus lenkoranus – LECTOTYPE (3, here designated): “ Lenkoran \ omalin. \ coll. Schuster \ Typus; Ancyrophorus ; lenkoranus; [O]. Scheerpeltz \ Lectotypus; Ancyrophorus ; lenkoranus Scheerpeltz ; [on the back] des. Makranczy , 1999 / Ochthephilus ; lenkoranus Scheerpeltz ; det. Makranczy, 1999” ( NHMW). – PARALECTO- TYPE (1): “ Lenkoran; Leder; (Reitter) \ coll. Schuster \ Typus; Ancyrophorus ; lenkoranus; O. Scheerpeltz \ Paralectotypus; Ancyrophorus ; lenkoranus Scheerpeltz ; [on the back] des. Makranczy, 1999 \ Ochthephilus ; lenkoranus Scheerpeltz ; det. Makranczy, 1999” ( NHMW, 1).

Ancyrophorus swaneticus – PARATYPE (1): “Сванетия, Местиурия, Местия, 1700 м, 29.VI.1968.” ( BMNH, 1) .

OTHER MATERIAL: see Appendix.

REDESCRIPTION: Forebody as in Fig. 526. Measurements (n=10): HW = 0.56 (0.51-0.58); TW = 0.51 (0.47-0.54); PW = 0.62 (0.56-0.65); SW = 0.77 (0.69-0.79); AW = 0.85 (0.73-0.94); HL = 0.42 (0.38-0.45); EL = 0.19 (0.17-0.20); TL = 0.09 (0.08- 0.10); PL = 0.50 (0.44-0.54); SL = 1.03 (0.90-1.08); SC = 0.95 (0.82-1.00); FB = 2.03 (1.80-2.13); BL = 3.62 (3.15-4.03) mm. Head and abdomen dark brown, often blackish, pronotum dark brown, just perceptibly lighter than previous two. Elytra medium to dark brown, if lighter (reddish) scutellar area to shoulders and a transverse stripe at apex darker, even blackish. Legs, mouthparts and antennae medium to dark brown, in most cases rather unicolorous. Body with greasy lustre mostly due to elytral setation plus forebody punctation and microsculpture. Pubescence rather fine and moderately dense, shorter and stronger (regularly spaced) on elytra, abdominal tergites with finer and longer setae, especially adjacent to laterosternites. Head anteriad eyes and near inner posterior margin of eye with stronger and darker bristles, as well as pronotal margin and middle of tibiae. Elytral apex with at least one conspicuously longer seta near sutural corner. Last tarsomere with a few setae only.

Forebody. Antenna as in Fig. 570. Clypeus almost impunctate (colliculate microsculptured), trapezoid, corners rounded, anterior edge gently arched; separated by impressed transversal line (frontoclypeal suture) across a shinier area. Supraantennal prominences well developed, feebly separated from clypeus/vertex by impressions. Vertex with oblique impressions in middle almost joining in V-shape. Temples bulging, evenly curved, barely longer than half of eye length. Neck separated by an impressed transversal groove, microsculpture much stronger than on head, with transverse cells, no setation. Pronotum with a narrow marginal bead, visible to anterior pronotal corners. Posterior pronotal angles well-formed, just slightly obtuse-angled, sides in posterior 2/3 almost straight. 'Anchor' fully formed, longitudinal midline as a slightly elevated, impunctate, weakly microsculptured line, parallel to this line two gentle, semi-longitudinal elongate elevations in anterior half of disc. In corners of anchor feeble, oblique impressions directed outwards, in middle at sides of midline two smaller impressions. Elytra slightly broadening posteriorly, sutural corners narrowly rounded; apical sides slightly oblique and in inner halves more or less straight. Elytral surface rather even with two shallow, very elongate impressions behind scutellum. Head with fine coriaceous/colliculate microsculpture, fading on elevated parts, stronger in impressions, on pronotum microsculpture slightly stronger and more even. Punctation on head sparse, mostly confined to posterior part and sides, on pronotum more evenly spaced, average interspaces much larger than puncture diameters; elytral punctation more even and regularly spaced, average interspaces (with indistinct coriaceous microsculpture) about as puncture diameters, punctures discrete.

Abdomen. Compared to forebody, abdomen with much more sparse, finer, less distinct punctation, microsculpture on tergal apices fine coriaceous with moderately transverse cells. Tergite VII posterior margin with palisade fringe unmodified in middle (nearly uniform breadth). Tergite VIII basal edge in females (Fig. 178) more strongly angular, slightly more evenly arched in males (Fig. 177); apical edge with sinuate (protruding) corners, and broad, moderately deep emargination in between. Sternite VIII with rounded apical corners, apex in males shallowly concave laterally, gently sinuate in middle; in females slightly more sinuate (convex) in middle. Tergite X unmodified, apex very slightly wider in males than in females. Aedeagus as in Fig. 164, inner sclerites as in Figs 165-166. Female ringstructures as in Figs 167-168.

COMPARATIVE NOTES: This species is difficult to identify without dissection. Several species tend to be very similar, most importantly the O. praepositus – O. rosenhaueri sibling pair. In this species the antennae are elongate (article 6 always much longer than broad, roughly 1,6-1,8x) and pronotal ridges tend to be very shiny with weakened microsculpture; in the other species if the antennae are elongate, the pronotum is microsculptured everywhere, even on the shinier ridges. Phylogenetically the most closely related taxon seems to be O. solodovnikovi , the two, however, greatly differ in size.

DISTRIBUTION: Known from the southern Alps and northern Carpathians through the whole Balkans and Turkey to Crimea and Transcaucasia.

BIONOMICS: Specimens were collected from finer sand on a riverbank, muddy spot on a riverbank, debris on a riverbank, wet moss at a waterfall and wet leaflitter (under Petasites hybridus), and were also captured by car-net.

Ochthephilus planus ( LeConte, 1861) Figs 217-221, 229, 529, 573 Ancyrophorus planus LeConte, 1861: 69 . – LeConte, 1877: 241. – Hatch, 1957: 400. Ochthephilus planus (LeConte) . – Herman, 1970: 384. – Downie & Arnett, 1996: 441. Ancyrophorus curtipennis Eppelsheim, 1893: 65 , syn. nov. – Scheerpeltz, 1950: 59.

TYPE MATERIAL EXAMINED: Ancyrophorus planus – LECTOTYPE (here designated): “[pale blue disc] \ Type 6562 \ Ancyrophorus ; planus Lec. \ locality probably; Lake Superior [*+47.00/- 89.00*] \ Lectotypus; Ancyrophorus ; planus LeConte ; [on the back] des. Makranczy, 1999 \ Ochthephilus ; planus LeConte ; det. Makranczy, 1999” ( MCZN) . – PARALECTOTYPES (2): same data as lectotype (coll. Kraatz, SDEI, 1, coll. Fauvel, ISNB, 1). Ancyrophorus curtipennis – LECTOTYPE (here designated): “ Baikal [' Quellgebiet des Irkut', in der Nähe von Irkutsk, von Tunka bis Munku-Sardik im Sajan'schen Gebirge *+51.75/+101.00*] \ Type ; Ancyrophorus ; curtipennis; Baikal n. sp. \ coll. Reitter \ Holotypus 1893; Ancyrophorus ; curtipennis; Eppelsheim \ Ancyrophorus ; curtipennis Epp. ; det. Székessy \ Lectotypus; Ancyrophorus ; curtipennis Eppelsheim ; [on the back] des. Makranczy, 1999 \ Ochthephilus ; planus LeConte ; det. Makranczy, 1999” ( HNHM) . – PARALECTOTYPES (6): same data as lectotype, ( HNHM, 2). “Ost- Sibirien; Quellgebiet; des Irkut; Leder 1891 \ curtipennis; Epp. \ c. Epplsh.; Steind. d. \ Typus \ Paralectotypus; Ancyrophorus ; curtipennis Eppelsheim ; (on the back) des. Makranczy, 1999 \ Ochthephilus ; planus LeConte ; det. Makranczy, 1999” ( NHMW, 3), “Ost-Sibirien; Quellgebiet; des Irkut; Leder 1891 \ curtipennis; Epp. \ Dr. M. Bernhauer; donavit; 16. XII. 1933 \ ex coll.; Scheerpeltz \ Paralectotypus; Ancyrophorus ; curtipennis Eppelsheim ; [on the back] des. Makranczy, 1999 \ Ochthephilus ; planus LeConte ; det. Makranczy, 1999” ( NHMW, 1) .

OTHER MATERIAL: see Appendix.

REDESCRIPTION: Forebody as in Fig. 529. Measurements (n=10): HW = 0.60 (0.57-0.63); TW = 0.55 (0.53-0.58); PW = 0.72 (0.68-0.77); SW = 0.88 (0.80-0.94); AW = 1.03 (0.93-1.12); HL = 0.46 (0.43-0.48); EL = 0.19 (0.18-0.20); TL = 0.09 (0.08- 0.10); PL = 0.56 (0.53-0.60); SL = 1.05 (0.92-1.13); SC = 0.95 (0.82-1.04); FB = 2.13 (1.95-2.21); BL = 3.80 (3.43-4.06) mm. Head, pronotum and abdomen blackish dark brown, elytra dark brown, sometimes almost black, but often woith slight reddish tint. FIGS 262-276

(262-266) Ochthephiluskirschenblatti sp. n.; aedeagus (262), innersclerites (263-264), female ringstructures (265-266). (267-271) O. omalinus (Erichson) ; aedeagus (267), innersclerites (268-269), femaleringstructures (270-271). (272-276) O. szeli sp. n.; aedeagus (272), inner sclerites (273-274), femaleringstructures (275-276). Scalebar = 0.045 mmfor 265-266, 0.055 mmfor 270-271, 275-276, 0.08 mmfor 262-264, 0.1 mmfor 267-269, 272-274.

Antennae, mouthparts and legsdark brown, except tarsi and both ends of of tibiae lighter, medium brown. Body with greasy lustre mostly due to elytral setation plus forebody punctation and microsculpture. Pubescence rather fine and moderately dense, shorter and stronger (regularly spaced) on elytra, abdominal tergites with finer and longer setae, especially adjacent to laterosternites. Head anteriad eyes and near inner posterior margin of eye with stronger and darker bristles, as well as pronotal margin and middle of tibiae. Elytral apex with occasional, thin (so inconspicuous) but longer setae near sutural corners. Last tarsomere with a few setae only.

Forebody. Antenna as in Fig. 573. Clypeus almost impunctate (colliculate microsculptured), trapezoid, corners rounded, anterior edge gently arched; separated by impressed transversal line (frontoclypeal suture) across a shinier area. Supraantennal prominences well developed, separated from clypeus/vertex by longitudinal impressions. Vertex with two feeble impressions in middle. Temples slightly bulging, evenly curved, barely longer than half of eye length. Neck separated by an impressed transversal groove, microsculpture much stronger than on head, with slightly transverse cells, no setation. Pronotum with a narrow marginal bead, visible to anterior pronotal corners. Posterior pronotal angles well-formed, just slightly obtuse-angled, sides in posterior 2/3 very gently concave/bisinuate. 'Anchor' fully formed, longitudinal midline as a slightly elevated, impunctate, weakly microsculptured line, parallel to this line two gentle, semi-longitudinal elongate elevations in anterior half of disc. In corners of anchor feeble, oblique impressions directed outwards, in middle at sides of midline two smaller impressions. Elytra slightly broadening posteriorly, sutural corners narrowly rounded; apical sides slightly oblique and in inner halves more or less straight. Elytral surface with two shallow, oblique impressions behind scutellum. Head with fine coriaceous/colliculate microsculpture, fading on elevated parts, stronger in impressions, on pronotum microsculpture slightly stronger and more even. Punctation on head sparse, mostly confined to posterior part and sides, on pronotum more evenly spaced, average interspaces 2x larger than puncture diameters; elytral punctation (average interspaces larger than puncture diameters) sometimes turning into more raspy, uneven (average interspaces about equal to puncture diameters) with inconspicuous coriaceous microsculpture, punctures not always discrete.

Abdomen. Compared to forebody, abdomen with much more sparse, finer, less distinct punctation, microsculpture on tergal apices fine coriaceous with moderately transverse cells. Tergite VII posterior margin with palisade fringe unmodified in middle (nearly uniform breadth). Tergite VIII (Fig. 229) basal edge evenly arched, with small concavity in middle of basal sclerotized band; apical edge with sinuate (protruding) corners, and broad, moderately deep emargination in between. Sternite VIII with rounded apical corners, apex in males shallowly concave laterally, gently sinuate in middle; in females slightly more sinuate (convex) in middle. Tergite X unmodified, apex very slightly wider in males than in females. Aedeagus as in Fig. 217, inner sclerites as in Figs 218-219. Female ringstructures as in Figs 220-221.

COMPARATIVE NOTES: For the western ranges of North America the similar congeners are listed under O. columbiensis (and the East Palaearctic ones under O. laevis ). Only in the eastern part of North America its range overlaps with that of O. ashei , these two species differ in size and numerous other characters (mid-antennal segments, apex of tergite X). The only species with chance of confusion is O. columbiensis , but it has strong microsculpture all over the dorsal surface of the head and the only shinier line is that of the frontoclypeal suture.

DISTRIBUTION: Known from the belt of the northern hardwood forest, from East Siberia and the Russian Far East through Alaska to the northern and highest parts of both the Pacific Coast Ranges and the Appalachian Mountains in North America .

BIONOMICS: Specimens were found on banks of shaded streams, under stones, rotten wood, on sandy banks of rivers, among muddy gravel on gravelbanks, in moss on rocks at stream, in flood debris, various plant debris on banks, wet leaflitter packs at stream, sometimes among grasses growing on gravelbeds.