Pseudobironium hisamatsui Löbl, 2011

Löbl, Ivan & Tang, Liang, 2013, A review of the genus Pseudobironium Pic (Coleoptera: Staphylinidae: Scaphidiinae), Revue suisse de Zoologie 120 (4), pp. 665-734 : 726-730

Pseudobironium hisamatsui Löbl, 2011

Pseudobironium hisamatsui Löbl, 2011b: 203 .

HOLOTYPE: Ƌ, MHNG. Type locality: Taiwan, Tienhsiang Hualien Co.

ADDITIONAL MATERIAL EXAMINED: TAIWAN, Tapei County, Beitou Township (Shipai metro station), Mt. Samau (S), 3.I.2009, 2 ♀ leg. S. Vít ( MHNG) .

DISTRIBUTION: Taiwan.

COMMENTS: The description of the species was based on a single male. The two specimens listed above are females. They are larger and darker than the holotype: the body length is 3.35 mm, and the pronotum and elytra are black or almost black. The species may be distinguished from most of the similar species, such as P. vitalisi and P. confusum , by the shape of the parameres. See comments under P. confusum . Previously unnoticed caracters are the median lobe of the aedeagus laterally tuberclulate, suggesting relationships with P. grossum , P. carinense , P. conspectum , and P. connexum, and the metacoxal process weakly bilobed, impunctate, with punctulate microsculpture and a minute mediobasal tubercle.

Pseudobironium subovatum Pic, 1920 Figs 92-94 Pseudobironium subovatum Pic, 1920a: 15

TYPE MATERIAL: Lectotype, Ƌ, MNHN, by present designation, labelled: Palembang Sumatra [printed] / type [handwritten, by Pic] / Omalocera Er. Sp.? [handwritten] / Pseudobironium subovatum ng nsp [handwritten, by Pic] / TYPE [printed red] / Pseudobironium subovatum Pic det Löbl 1970 / Lectotype [printed red].

ADDITIONAL MATERIAL EXAMINED: INDONESIA, West Sumatra Prov., Kerinci Seblat Nat. Park 24 km NE Tapan, Muara Sako east, 2°05'S 101°15'E, 400-550m, 4-18.III.2003, 2 ex., leg. L. Dembický ( NMHB) . – Sumatra, Liangagas , 1 ex. leg. Dohrn ( ZMPA) . – Sumatra, Soekaranda , 1 ex. leg. Dohrn ( ZMPA) . – East Kalimantan, ca 50 km W of Balikpapan, PT Fajar Surya Swadaya [area], 01°13.4'S 116°22.6'E, 66m, 27, 30.XI. 2011, 1 ex. leg. J. Hájek, J. Schneider and P. Votruba ( NMPC) . – Kalimantan Barat, Gunung Paiung Nat. Park, Caban Panti research site, 1°13'S 110°7' E, lowland forest, from bracket fungi, No. 10, 18.-26.VII1993; 4 ex. leg. O. Merkl ( HNHM, MHNG) . – MALAYSIA: West Malaysia , Pahang, Taman Negara Nat. Park , 12-14.VII.1993, 8 ex. leg. H. Forster ( NHMW, MHNG) . – Pahang, 30 km E of Ipoh, 1500m, Cameron Highlands, Tanah Rata , 7.-9.I.1999, 1 ex. leg. P. Čechovský ( NHMW) . – Taman Negara, env. Kuala Tahan , 12-29.VI.1997, 2 ex. leg. S. Kazantcev ( NHMB, MHNG) . – Benom Mts , 15 km E Kampong Dong; 700m, 3°53'N 102° 01'E 1.IV.1998, 1 ex. L. Dembický & P. Pacholátko ( NHMB) . – Johor, 50-400m, Endau-Rompin, 19.III.1998, Pulau Jasin , 2°31'N 103°21' E, 1 ex. leg. L. Dembický & P. Pacholátko ( NHMB) . – East Malaysia , Sabah, Bajnaran Maitland, Batu Pungul 25-27.V.1995, 1 ex. leg. I. Jeniš ( MHNG) . – Sabah, Crocker Range, Gunung Emas, 1500-1700m, around km 52 road Kota Kinabalu Tambunan , 6-18.VI.1996, 1 ex. ( MHNG) . – Sarawak, Mt. Matang , XII.1913, 1 ex. leg. G.E. Bryant ( NHMP) . – Sarawak, Bario , 1200-1400m, 25.IX.-7.X.2001, 1 ex. leg. S. Kurbatov ( MHNG) . – THAILAND, Phang-nga Prov., Lamnu distr., NE Lam Kaen (white banana waterfall) 08°37.324N, 98°18.362E, 75m, 13.viii.2012, 3 ex. leg. A. Weigel ( NMEC, MHNG) .

REDESCRIPTION: Length 2.90-3.50 mm, width 2. 0-2.23 mm. Head, pronotum, prohypomera, elytra and abdomen uniformly dark reddish-brown, metaventrite usually darker. Femora and tibiae about as most of body, tarsi and antennomeres I to VI lighter, reddish-brown, following antennomeres infuscate. Maxillary palpi with palpomere IV about 3.5 times as long as wide, tapering. Length ratio of antennomeres as II 11: III 9: IV 19: V 23: VI 15: VII 22: VIII 21: IX 21: X 21: XI 22; antennomere XI about 3.5 times as long as wide. Head and pronotum with dense and fine punctation; punctures FIGS 92-94

(92-94) Pseudobironium subovatum Pic , aedeagus in dorsal (92) and lateral views (93), male protarsus in lateral view (94); scale bars = 0.2 mm.

not well delimited, shallow, pronotal punctures slightly larger than those on head, with intervals mostly about twice to three times as large as puncture diameters. Elytra lacking subapical humps, lateral and subapical impressions. Elytral punctation coarser that pronotal punctation, with punctures mostly well delimited, puncture intervals mostly about as, to twice as large as puncture diameters. Prohypomera impunctate. Mesoventrite punctate, lacking median ridge or line. Metaventrite without microsculpture. Median part of metaventrite flattened, coarsely and densely punctate except on mesal line, punctures sharply delimited, with diameters partly about as large as or larger than puncture intervals, finer near apical process. Lateral parts of metaventrite very finely punctate. Submesocoxal area about as half of interval to metacoxa. Metacoxal process with truncate margin or very weakly concave, with fine mesal stria, usually with few punctures and hardly visible microsculpture. Mesotibiae and metatibiae distinctly curved, mesotibial ventral spur straight. Abdominal sternite 1 very finely, sparsely punctate, with microsculpture consisting of short striae, eventually punctulate on lateral areas, with shallow, irregular oblique impression situated posterior mid-length and usually with very shallow irregularly rounded impression. Following sternites lacking wrinkles, with distinct microsculpture.

Male: Protarsus long, longer than protibia, with tarsomeres 2 and 3 (Fig. 94) conspicuously elongate and strongly widened, somewhat narrower than apex of protibia, with tenent setae conspicuously long, longer than respective tarsomeres. Aedeagus (Figs 92, 93) 1.10-1.22 mm long. Median lobe with basal bulb shorter than apical process, latter gradually narrowed, moderately inflexed, with ventral side convex, tip abruptly bent and acute in lateral view. Parameres curved and narrowed in middle third in dorsal view, conspicuously wide in basal third, gradually narrowed toward apical two fifth and in apical part evenly wide in lateral view. Internal sac with guide-sclerites, pair of conical lateral sclerites each with invaginated smaller conical sclerite and short rod. Membranes of internal sac bearing denticle-like and strigulate structures posterior sclerites.

DISTRIBUTION: South Thailand, Malaysia: West Malaysia and Borneo;

Indonesia: Sumatra and Borneo.

COMMENTS: This species may be readily distinguished by the strongly elongate male protarsi bearing very long tenent setae, the tip of the median lobe abruptly bent and acute, and by the shape of the parameres as seen in lateral view.

Pseudobironium vitalisi ( Achard, 1920) Figs 95-97 Morphoscapha vitalisi Achard, 1920: 133 .

Morphoscapa dohertyi Achard, 1920: 135 , syn. nov.

LECTOTYPE of M. vitalisi: Ƌ MNHN , by present designation, labelled: Sumatra Est 91-92 Coll. Grouvelle [handwritten] / TYPE [red, printed] / MUSEUM PARIS 1917 Coll. GROUVELLE / Morphoscapha Vitalisi n. sp. J. Achard det. 1920 [handwritten by Achard, his name printed] / Lectotype [red, printed] / Lectotype Pseudobironium vitalisi (Achard) det. Löbl 1991 [handwritten].

PARALECTOTYPE OF M. VITALISI : ♀, MNPC, by present designation, labelled: Laos Vitalis [handwritten] / TYPE [red, printed] / Morphoscapha Vitalisi n. sp. J. Achard det. 1920 [handwritten by Achard, his name printed] / Pseudobironium vitalisi det. Löbl, 1970.

LECTOTYPE OF M. DOHERTYI : ♀, MNPC, by present designation, labelled: Martapura S. E. Borneo Doherty. 1891. [printed] / Museum Paris Coll. Grouvelle [printed] / Morphoscapha dohertyi n. sp. [handwritten] J. Achard [printed] Type [handwritten] /TYPE [printed, red] / Lectotype Pseudobironium dobertyi (Achard), det. I. Löbl, 2013.

PARALECTOTYPE OF M. DOHERTYI : ♀, MNPC, labelled: Martapura S. E. Borneo. Doherty 1891. [printed] / Museum Paris Coll. Grouvelle [printed] / Morphoscapha dohertyi Achard CoType [handwritten] / Mus. Nat. Pragae Inv. 18 722 / Pseudobironium dohertyi (Achard) det. Löbl 1970.

ADDITIONAL MATERIAL EXAMINED (only males): INDONESIA, Java [without other data], 1 ex. ( MHNG) . – Sumatra [without other data], 1 ex. ( NMPC) . – Kalimantan, Martapura , 1 ex. leg. Doherty ( NMPC) . – MALAYSIA, Sabah, Batu Punggui Resort env. 24.VI.-1.VII.1996, 11c vegetation debris and forest floor litter accumulated along large trees near river, 2 ex. ( NHMW) . – Sabah, Sabalangan River env., ca 25 km SE Sapulut, 26.06.1998, 3 ex. leg. J. Kodada & F. Čiampor ( NHMW, MHNG) . – Sabah, Bajnaran Maitland, Batu Pungul , 25-27.V.1995, 1 ex. leg. I. Jeniš ( NHMW) . – Sabah, ca 5 km S Sapulut, Saliku riv., in primary forest ca 600m, 16.V.2001, 4 ex. leg. J.F. Kočiam ( NHMW, MHNG) . – Sabah, Batu Punggul Resort env., 24.VI.-1.VII.1996, 11e, lower floor of vegetation (beating), 4 ex. ( NHMW, MHNG) . – Sabah, Poling nr. Ranau , 25. and 30.IV.1980, 3 ex. leg. M. & S. Sakai ( EUMJ, MHNG) . – Sabah, km 55 road KK - Tambunan, Gn. Emas, 1650m, 22.III.-6.IV.2000, 1 ex. leg. Bolm ( NHMB) . – NE Sarawak, Bario , 1200- 1400m, 25.IX.-7.X.2001, 1 ex. leg. S. Kurbatov ( MHNG) . – Sarawak, Kapit , 1-2.III.1994, 1 ex. leg. J. Horák ( MHNG) . – Sarawak, Kapit Distr., Sebong Belah riv., 9-23.III.1994, 3 ex. leg. J. Horák ( MHNG) .

FIGS 95-97

(95-97) Pseudobironium vitalisi (Achard) , aedeagus in dorsal (95) and lateral (97) views, internal sac (96) in dorsal view; scale bar = 0.3 mm for aedeagus, = 0.1 mm for internal sac.

REDESCRIPTION: Length 3.30-3.50 mm, width 2.50-2.70 mm. Head, body and femora uniformly reddish-brown to very dark brown, apical abdominal segments and tibiae somewhat lighter, tarsi and antennomeres I to VI distinctly lighter than tibiae, yellowish, antennomeres VII to XI infuscate. Maxillary palpi with palpomere IV about 4 times as long as wide, tapering. Length ratio of antennomeres as II 12: III 10: IV 19: V 20: VI 16: VII 19: VIII 19: IX 19: X 19: XI 26; antennomere XI well four times as long as wide. Head and pronotum with very fine punctation, punctures not well delimited, shallow. Punctures on head fairly dense, pronotal punctures slightly larger than those on head, with intervals mostly about twice to five times as large as puncture diameters, near base more dense and less fine than on remaining surface. Elytra lacking subapical hump and lateral impression, and without subapical impression. Elytral punctation coarser that pronotal punctation, with punctures mostly well delimited, puncture intervals mostly about twice to four times as large as puncture diameters. Prohypomera very finely punctate. Mesoventrite extremely finely punctate, lacking median ridge or line. Metaventrite not microsculptured. Median part of metaventrite flattened in posterior half, coarsely and densely punctate except on mesal line, punctures sharply delimited, with diameters partly about as large as or larger than puncture intervals, hardly finer near apical process. Lateral parts of metaventrite very finely punctate. Submesocoxal area about as fourth of interval to metacoxa. Metacoxal process impunctate, with strigulate microsculpture, truncate margin, distinct median tubercle. Mesotibiae and metatibiae strongly curved, mesotibial ventral spur straight. Abdominal sternite 1 very finely, sparsely punctate, with microsculpture consisting of striae distinct on mesal area, punctulate microsculpture on lateral areas, and with shallow, lateral impressions. Following sternites lacking wrinkles, with distinct microsculpture.

Male: Protarsus shorter than protibia, with tarsomeres 1 to 3 strongly widened, somewhat narrower than apex of protibia. Aedeagus (Figs 95-97) 1.85-2.35 mm long. Median lobe with basal bulb large, longer than apical process, latter bearing lateral tubercles, with weakly sinuate ventral side and blunt tip in lateral view. Parameres weakly curved and with narrow lobes in dorsal view, very wide between base and apical third, with slightly sinuate upper margin, gradually narrowed toward tip in lateral view. Internal sac with mesal guide-sclerites, pair of conical lateral sclerites each with invaginated conical sclerite and short rod. Membranes of internal sac strigulate and with scale-like structures posterior mesal sclerites.

DISTRIBUTION: Indonesia: Java, Sumatra, Kalimantan ; East Malaysia: Sabah ,

Sarawak.

COMMENTS: Achard (1920) based his description of M. vitalisi on specimens from “Indo-Chine: Laos (Vitalis da Salvaza, in coll. Achard)” and “Sumatra oriental (coll. Grouvelle in Museum d'Histoire Naturelle de Paris)”. Only a single original specimen of M. vitalisi is present in each of these two collections. The unambiguously characterized male is designated as lectotype. The identity of the female, designated as paralectotype, is problematic. The two original specimens of M. dohertyi from Sumatra are labelled as “Type” and “Co-type”, respectively. They are in fact syntypes, and a lectotype is here designated. Their synonymy is based on absence of species specific characters that would distinguish them from P. vitalisi , and is supported by the presence of a male from the type locality.

Unplaced species