Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 85. (Budapest 1993)

Zanetti, A.: Contribution to the knowledge on Eastern Palaearctic Eusphalerum Kraatz with descriptions of new species (Coeloptera, Staphylinidae: Omaliinae)

ked mainly in the middle; the subantennal depression protruded caudally and the depression between ocelli define a central elevated area that is bright with superficial microsculpture, and very sparse and superficial punctation; the depressions are covered with strong and rather irregular microsculpture, and more clear and denser punctation; along the internal margin of eyes a few small longitudinal stripes are present; antennae with 1st and 2nd segments ovoid, 2nd smaller than 1st, 3rd subcorneal, elongate, 4th and 5th feebly longer than wide, 6th subsquare, 7th transverse and much larger than 6th, 8th to 10th transverse, 11th elongate. Pronotum clearly transverse (width/length ratio = 1.56), widest little in front of middle, fore margin shorter than hind, hind angles scarcely obtuse and feebly rounded; median line with feeble groove in fore half, accompanied by a couple of longitudinal depressions scarcely visible, and a wide transverse pit in front of hind margin; depressions near hind angles rather large but superficial; surface rather uneven with microsculpture marked mainly in the middle, and with fine and sparse punctation, mainly in the middle; pubescence very short, scarcely evident. -Elytra wide, 2.2 times longer and 1.5 times wider than pronotum, truncated at apex as in Fig. 44, bright, with rather strong and confluent punctation; pubescence short but rather evident. - Abdomen rather bright, with transverse microsculpture, very fine punctation and sparse decumbent pubescence. -Legs without peculiar characters, narrow, fore tibiae feebly dilated at apex, middle tibiae feebly curved in apical part. - Aedeagus (Figs 21-22) flattened, median lobe progressively narrowed in a subacute apex (in Fig. 21 the apex of median lobe may be confused with the protruded internal sac, that is rounded!); internal sac with elongate, thin and strongly sclerotized copulatory structure. Sexual dimorphism - Apex of elytra of both sexes truncated (Figs 44-45). Middle tibiae of female straight. Variability - Size: 2.0-3.0 mm. Colour sometimes darker than in holotype, brown also on elytra. Sometimes pronotum less narrowed in front and brighter than in holotype. Remarks -E. szeli sp. n. is rather isolated from the other species of the same area. WATANABE (in litt.) asserts that this species is different from any Eusphaierum of the Japanese fauna. Distribution - It is known only from the Ryanggang Province in nothern North Korea (see also distribution of E. merkli). Phenology and ecology - June and July, at high altitude (2,000-2,500 m a.s.l.). The sites are characterized as follows: No. 1355: Larix olgensis-iorest (not mixed with Betula pendula) with rather poor underwood, not far from the tree-borderline; No. 369: netting in grass vegetation, about 2,000-2,500 m a.s.l. (DELY & DELY-DRASKOVTTS 1978, MERKL & SZÉL 1989). Eusphaierum lapponicum (MANNERHEIM, 1830) Omalium lapponicum MANNERHEIM, 1830: 52. Anthobium lapponicum: Kangas 1941: 65; BENICK 1943: 601. Eusphaierum lapponicum: TlCHOMlROVA 1973: 137. Material examined - Magadan Region, Kolima sup. Sibit-Ty'ellah swamp, on grass, 2.VI.1981, leg. BERMAN, 2 specimens (RYV); Maritime Prov., Khasan distr., Zanadvorovka, 4.VI.1972, leg. A. RASNITSYN, 4 specimens(RYV, Z) Remarks - These specimens confirm the presence of E. lapponicum (MANNERHEIM) in Eastern Siberia. The species is known from North Europe and a few localities in Central Europe (HORION 1963). Eusphaierum schoenmanni sp. n. (Figs 19-20,46) Material examined - Holotype, male, labelled: Seitengraben des Parwja Rietschka Tales, nördl. Wladiwostok M. Frieb leg. 1918-1920 / nigriventris MÖTSCH. / ex. coll. Scheerpeltz (NMW); 1 paratype, male, idem (NMW).