Sunius turgescens, Assing, 2010

Assing, V., 2010, A revision of Palaearctic Sunius. XII. New species, new synonymies, and additional records (Coleoptera: Staphylinidae: Paederinae), Linzer biologische Beiträge 42 (2), pp. 1045-1061 : 1058-1061

Sunius turgescens nov.sp. ( Figs 31-37 )

T y p e m a t e r i a l: Holotype: " China: N-Yunnan, Nujiang Lisu Aut. Pr., Gongshan Co., Gaoligong Shan, above ranger station, 27°47.65'N, 98°35.41'E, 2000 m, 129.VI.05, A. Smetana [C166]", / Holotypus Sunius turgescens sp. n. det. V. Assing 2010 " (cSme). Paratypes: 1, 1:

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same data as holotype (cSme, cAss) ; 3: " China: N-Yunnan [C2005-13], Lujiang Lisu Aut. Pref., Gongshan Co., Gaoligong Shan , above "ranger station" / 27°47.65'N, 98°35.41'E, 2000 m, broadleaved forest remnant, litter & moss sifted, 19.VI.2005, M. Schülke [C2005-13]" (cSch, cAss) .

D e s c r i p t i o n: Body length 3.5-4.1 mm. Habitus as in Fig. 31 . External morphology as in S. macrops , except as follows:

Legs and antennae uniformly reddish. Elytra slightly shorter and more slender, 0.75-0.80 times as long as pronotum ( Fig. 32 ).

: sternite VII with posterior margin truncate, on either side of middle with approximately 8 long submarginal setae ( Fig. 33 ); sternite VIII with rather sparse pubescence and with small posterior excision, its depth approximately 1/10 the length of sternite, otherwise unmodified ( Fig. 34 ); aedeagus similar to that of S. macrops , but apex of ventral process of different shape ( Figs 35-36 ); internal structures similar to those of S. macrops ( Fig. 37 ).

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E t y m o l o g y: The specific epithet is the present participle of the Latin verb turgescere (to swell, to bulge) and alludes to the conspicuously large eyes.

C o m p a r a t i v e n o t e s: Among the Chinese Sunius species , S. turgescens is similar only to S. macrops , from which it is distinguished by the uniformly reddish legs, the shorter and more slender elytra, and by the shape of the apex of the ventral process of the aedeagus. Both species are evidently closely related, as is suggested by the similarly derived morphology of the aedeagus (apex of ventral process, shape of internal structures).

D i s t r i b u t i o n a n d b i o n o m i c s:Thetypelocality is situated in the north of Yunnan province, China. The specimens were sifted from litter and moss in a broadleaved forest at an altitude of 2000 m.

Undescribed species

Sunius sp. 1 [micropterous]: 1, Nepal, Tarai, Chitre, 26°07'N, 87°24'E [coordinates evidently incorrect], 7000 ft., forest litter, 4.III.1962, leg. Hyatt (BMNH).

Acknowledgements

Thanks are extended to the colleagues listed in the materials section for the loan of material from their respective collections. In particular, I am grateful to Michael Schülke for the generous gift of the holotype of Sunius macrops and to Viggo Mahler, Horsens, for the kind permission to retain the male of S. kuehnelti . Aleš Smetana provided additional habitat data for S. turgescens . Benedikt Feldmann, Münster, proof-read the manuscript.

Zusammenfassung

Drei Arten der Gattung Sunius STEPHENS aus der Ostpaläarktis werden beschrieben und abgebildet: S. manasluensis nov.sp. (Zentral-Nepal), S. macrops nov.sp. ( China: Yunnan) und S. turgescens nov.sp. ( China: Yunnan). Zwei Namen werden synonymiesiert: Sunius STEPHENS 1829 = Tetracanthognathus SCHEERPELTZ 1963, nov.syn.; Sunius nidicola ( KASTCHEEV 1982) = S. splendidulus (BOHÁý 1988), nov.syn. Tetracanthognathus kuehnelti wird in die Gattung Sunius gestellt; die vorher unbekannten männlichen Geschlechtsmerkmale der Art werden abgebildet. Sunius galiberti COIFFAIT 1987 aus Zentral-Nepal wird redescribiert und abgebildet. Weitere Nachweise von 22 Arten werden aus der Paläarktis gemeldet. Die paläarktische Sunius -Fauna umfasst derzeit 111 Arten und zwei Unterarten.

References

ASSING V. (1995): Über Sunius fallax (LOKAY, 1919) (Col., Staphylinidae). — Entomologische Nachrichten und Berichte 38 (1994): 267-269.

ASSING V. (2002): New species of Sunius CURTIS from China and Iran (Coleoptera: Staphylinidae, Paederinae). — Linzer biologische Beiträge 34 (1): 289-296.

ASSING V. (2004): A new species of Sunius CURTIS from China (Coleoptera: Staphylinidae, Paederinae). — Linzer biologische Beiträge 36 (2): 663-665.

ASSING V. (2008 a): A revision of the Sunius species of the Western Palaearctic region and Middle Asia (Coleoptera: Staphylinidae: Paederinae). — Linzer biologische Beiträge 40 (1): 5-135.

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ASSING V. (2008 b): Four new species and additional records of Palaearctic Sunius, with two new synonymies (Coleoptera: Staphylinidae: Paederinae). — Beiträge zur Entomologie, Keltern 58 (2): 455-470.

ASSING V. (in press): A revision of the genus Neosclerus CAMERON (Coleoptera: Staphylinidae: Paederinae). — Beiträge zur Entomologie, Keltern 60 (2) (2010).

BOHÁý J. (1988): Descriptions of new species of the subfamily Paederinae (Coleoptera, Staphylinidae) from the Palaearctic region. — Acta Entomologica Bohemoslovaca 85: 434-443.

COIFFAIT H. (1975): Xantholininae, Paederinae et Euaesthetinae récoltés au Népal par le professeur Franz (Col. Staphylinidae). — Nouvelle Revue d'Entomologie 5 (2): 153-186.

COIFFAIT H. (1987): Nouvelles corrections homonymiques (Col. Staphylinidae). — Nouvelle Revue d'Entomologie (N.S.) 3 (4) (1986): 497-498.

KASTCHEEV V.A. (1982): Novye vid' Zhukov-Stafilininov (Coleoptera, Staphylinidae) iz Pustyni Kyzylkum. — Entomologicheskoe Obozrenie 61: 537-541.

SCHEERPELTZ O. (1963): Ergebnisse der von Wilhelm Kühnelt nach Griechenland unternommenen zoologischen Studienreisen. I. (Coleoptera Staphylinidae). — Sitzungsberichte der Österreichischen Akademie der Wissenschaften Mathematisch-Naturwissenschafltiche Klasse, Abt. 1 172: 413-452.

SMETANA A. (2004): Subfamily Paederinae FLEMING, 1821. — In: LÖBL I. & A. SMETANA (eds), Catalogue of Palaearctic Coleoptera. Volume 2. Hydrophiloidea – Histeroidea – Staphylinoidea. — Apollo Books, Stenstrup: 579–624.

Author´s address: Dr. Volker ASSING

Gabelsbergerstr. 2

D-30163 Hannover, Germany

E-mail: [e-mail]

Figures

Figs 31-37: Sunius turgescens nov.sp.: (31) habitus; (32) forebody; (33) male sternite VII; (34) male sternite VIII; (35) aedeagus in lateral view; (36) ventral process of aedeagus in ventral view; (37) internal structures of aedeagus in lateral view. Scale bars: 31: 1.0 mm; 32: 0.5 mm; 33-36: 0.2 mm; 37: 0.1 mm.