Anthobium melanocephalum ( Illiger, 1794 )

Shavrin, Alexey V., 2024, Review of the genus Anthobium Leach, 1819 (Coleoptera: Staphylinidae: Omaliinae) of Western Palaearctic region, Zootaxa 5537 (4), pp. 451-474 : 459-460

Anthobium melanocephalum ( Illiger, 1794)

( Figs 4–5 , 10–12 )

Silpha melanocephala Illiger, 1794: 596 .

Lathrimaeum melanocephalum : Luze 1905: 58, Lohse 1964: 52, Tóth 1982: 80, Zanetti 1987: 294

Anthobium melanocephalum : Zanetti 2012: 55.

Lathrimaeum kuehnelti Scheerpeltz, 1963: 363 .

Lathrimaeum hamatum Luze, 1905: 59 syn. n.

Lathrimaeum hamatum : Bordoni, 1986: 43, Khachikov 1998: 6.

Lathrimaeum (Lathrimaeum) hamatum : Scheerpeltz, 1961: 76.

Anthobium hamatum : Roubal 1913: 478, Assing 2010: 76, 2011: 183, 2013: 106, Bordoni 2010: 53, Assing & Schülke 2019: 98.

Other references see in Herman (2001).

Type material examined. Holotype ♂ ( Fig. 4 ; dissected prior to the present study; abdomen slightly deformed): ‘Caucasus | Meskisches Geb.|Leder, (Reitter.)’ <printed label with black margins>, ‘c. Eppelsh.| Steind.d.’<printed>, ‘CO- [handwritten] | TYPUS’ <red, printed>, ‘ Lathrimaeum | hamatum Luze | det. BORDONI 198[printed]6 | extra xit et | defineavit’ <handwritten>, ‘HOLOTYPE’ <red, printed>, ‘ Anthobium | melanocephalum ( Illiger, 1794) | Shavrin A.V. det. 2024’ <printed> ( NMW).

Additional material examined. SPAIN: ÁVILA: 2 ♂♂: Sierra de Gredos. 15.06.1971. M. Curti leg. ( MHNG); FRANCE: AUVERGNE: 1 ♂: Le Mont-Dore. 25.09.1964 ( MHNG); LANGUEDOC: 1 ♀:Mt.Ventoux Vauce. 15.06.1963 ( MHNG); PROVENCE: 1 ♂: Mougins/Canne. 29.03.1986. C. Besuchet leg. ( MHNG); 2 ♀♀: Séranon. 01.05.1963 ( MHNG); 1 ♀: Lambruisse. B.A. 19.10.1966 ( MHNG); NICE: 1 ♂: Aopromonte Gambari 18.06.1976. M. Curti ( MHNG); ITALY: PIEMONTE: 1 ♂: Crissolo. 07.1965 ( MHNG); TURKEY: BURSA: 1 ♀: Uludað, 17 km de Bursa. 1100 m a.s.l. 13.05.1976. C. Besuchet & I. Löbl leg. ( MHNG); BOLU: 1 ♀: Ömerler. 800 m a.s.l. 21.05.1976. C. Besuchet & I. Löbl leg. ( MHNG); 2 ♂♂: 9 km Mengen. 750 m a.s.l. 23.05.1976. C. Besuchet & I. Löbl leg. ( MHNG); 1 ♂: Abant. 1450 m a.s.l. 25.05.1967. C. Besuchet leg. ( MHNG); 2 ♀♀: same data. 22.05.1976. 1500-1600 m a.s.l. C. Besuchet & I. Löbl leg. ( MHNG); 1 ♂: Abant. 1450 m a.s.l. 25.05.1967. C. Besuchet leg. ( MHNG); KASTAMONU: 1 ♂: 5 km S Kürea. 1200 m a.s.l. 18.05.1976. C. Besuchet & I. Löbl leg. ( MHNG); 1 ♂: Inebolu-Küre. 700 m a.s.l. 18.05.1976. C. Besuchet & I. Löbl leg. ( MHNG); 1 ♀: Ilgardağ Diphan. 1300 m a.s.l. 05.1976. C. Besuchet & I. Löbl leg. ( MHNG); 2 ♀♀: Inebolu-Küre. 700 m a.s.l. 18.05.1976. C. Besuchet & I. Löbl leg. ( MHNG); 1 ♀: 13 km E Aðli. 1200 m a.s.l. 18.05.1976. C. Besuchet & I. Löbl leg. ( MHNG); SINOP: 1 ♀: Bürnük, 29 km N Boyabat. 1250 m a.s.l. 20.05.1976. C. Besuchet & I. Löbl leg. ( MHNG); ARTVIN: 1 ♀: SW Artvin. 1900 m a.s.l. 09.06.1986. C. Besuchet, I. Löbl & D. Burckhardt leg. ( MHNG); 1 ♂: Pirnalli, Karkal Daði. 1250 m a.s.l. 11.06.1986. C. Besuchet, I. Löbl & D. Burckhardt leg. ( MHNG); RUSSIA: ADYGEA: 1 ♀: Abadzekhskaya, “Lesnaya Skazka”. 05.2009. V. Bibin leg. (cKh); 2 ♂♂, 1 ♀: Abago Greenland, 11 km Guzeripl`-Abago road. 06.10.2015. E.A. Khachikov leg. (cKh, cSh); KARACHAY-CHERKESSIA: 1 ♂: Teberda State Nature Biosphere Reserve, Malaya Khatipara Mt. 1900 m a.s.l. 29.05.1985. A.B. Ryvkin leg. (cR); 1 ♂: 9 km SW Teberda, Teberdinskiy Range, 43°22´40´´N 41°39´38´´E. 2000 m a.s.l. 27.07.2011. V. Assing leg. ( NMW); 1 ♀: 13 km SW Teberda, 43°19´54´´N 41°39´58´´E. 1450 m a.s.l., spruce forest. 22.07.2011. V. Assing leg. ( NMW); NORTH OSSETIA-ALANIA: 2 ♀♀: Tseiskoye Gorge. Forest with Pinus and Carex . 1982. S.K. Alekseev leg. (cR); 1 ♂: North Ossetia Nature Reserve, basin of Ardon River. 1982. S.K. Alekseev leg. (cSh); DAGESTAN: 1 ♀: ‘ ♀ ’, ‘Daghestan Leder. Reitter.’, ‘Type. hamatum Luze’, ‘ex coll. Luze’, ‘TYPUS Lathrimaeum hamatum Luze’ ( NMW); ARMENIA: 1 ♀: ‘Caucasus. Armen. Geb. Leder. Reitter’, ‘coll. Reitter’, ‘Type. Hamatum Luze’, ‘ Allotypus 1905 Lathrimaeum hamatum Luze’, ‘ Lathrimaeum hamatum det. Székessy’ ( HNHM); GEORGIA: SVANETI: 1 ♂: ‘Caucasus. Swanetien. Leder. Reitter.’, ‘coll. Reitter’, ‘Type. hamatum Luze’, ‘ Paratypus 1905 Lathrimaeum hamatum Luze’ ( HNHM); 2 ♀♀: ‘Caucasus. Swanetien. Leder. Reitter.’, ‘ Lathrimaeum hamatum Luze Coll. Reitter’ ( HNHM); 3 ♂♂, 7 ♀♀: 30 km NW Khaishi, near Kherkhvashi. 1750-1800 m a.s.l., eutrophic-mesotrophic swamp ( Carex spp. , Scirpus and mosses). 21.09.1986. A.B. Ryvkin leg. (cR, cSh); RACHA: 2 ♂♂, 1 ♀: Racha road E Ambrolauri [13], 43°31´04´´N 43°19´10´´E. 1530 m a.s.l., litter sifted. 27.07.2021. V. Assing leg. ( NMW); GURIA: 1 ♀: SE Ozurgeti [73], Gomismta, 41°49´57´´N 42°09´23´´E. 1880 m a.s.l., litter sifted. 07.08.2022. V. Assing leg. ( NMW); IMERETI: 1 ♂: SE Sairme [42], 41°50´15´´N 42°49´27´´E. 2290 m a.s.l., pass, litter sifted. 20.07.2019. V. Assing leg. ( NMW); 2 ♀♀: Imereti pass [69]. 25 km SE Sachkhere, 42°09´54´´N 43°35´44´´E. 1190 m a.s.l., litter sifted. 23.10.2021. V. Assing leg. ( NMW); SAMTSKHE-JAVAKHETI: 2 ♀♀: ‘Caucasus Meskisches Geb. Leder, (Reitter)’, ‘ Lathrimaeum hamatum Luze Coll. Reitter’ ( HNHM); KVEMO KARTLI: 1 ♂: Algeti National Park, W Manglisi, 1400-1450 m a.s.l., forest with Fagus , Picea , Abies etc., litter and under bark. 16- 18.05.1987. S.I. Golovatch & K.Yu. Es`kov leg. ( ZMM); TUSHETI: 1 ♀: ‘Caucasus Tbatani [18]79 Leder, (Reitter)’, ‘ Lathrimaeum hamatum Luze Coll. Reitter’ ( HNHM); AZERBAIJAN: LANKARAN-ASTARA: 1 ♂, 2 ♀♀: Yardimli District, Avash. 1200-1500 m a.s.l. 14- 17.06.1996. S.I. Golovatch leg. (cSh); CAUCASIAN REGION WITHOUT EXACT LOCALITIES: 1 ♀: ‘Caucas.occ. Circassien Leder.Reitter’, ‘ Lathrimaeum hamatum Luze Coll. Reitter’ ( HNHM);

Besides that I studied 13 specimens of “ A. hamatum ” from NMW, label`s data of which were published by Assing (2011, 2013) from Turkey and by Assing & Schulke (2019) from Armenia respectively.

Remarks. Anthobium melanocephalum is widely distributed in Europe. Besides that, it was recorded from Turkey by Assing (2010, 2011). Turkish records of A melanocephalum by Assing (2004) refer to A. metallicum ( Assing 2013) . Eppelsheim (1881) published the first record of A. melanocephalum from Caucasus (“Tbatani”).

Lathrimaeum hamatum was originally described based on two specimens from “Meskisches Gebirge” (male) and “Armenisches Gebirge” (female). Later, it was recorded from many localities of Caucasus and Turkey. During the study of the type material (holotype as in Fig. 4 ) and additional specimens of A. melanocephalum from Europe, Turkey and Caucasus, I not found significant morphological differences between them. Some specimens from Caucasus and Turkey has paler (yellow-brown to brown) body and slightly vary in features of punctation of the head and the pronotum. Besides that, some specimens have more pronounced mediobasal impression on the pronotum. Specimens from the Middle Europe are usually larger, darker (reddish brown, with almost black head), and with more regular punctation on the pronotum. The shape of the aedeagus is slightly variable ( Figs 10–12 ) if compared with aedeagi of specimens from Europe (Fig. 34f in Zanetti (2012)). Thus, I synonymized A. hamatum with A. melanocephalum . Habitus as in Figs 4–5 . Measurements of specimens of A. melanocephalum from Turkey and Caucasus (n=50): HL: 0.41–0.44; HW: 0.66–0.70; AL: 1.20 (holotype of A. hamatum ); OL: 0.16–0.20; PL: 0.61– 0.70; PW: 1.16–1.20; ESL: 1.61–1.71; EW: 1.46–1.52; AW: 0.98–1.25; MTbL: 0.69 (holotype of A. hamatum ); MTrL (holotype of A. hamatum ): 0.35 (MTrL 1–4: 0.18; MTrL 5: 0.17); AedL: 0.50–0.77; TL: 3.20–4.07 (holotype of A. hamatum : 4.04). It is here recorded from Azerbaijan for the first time.

Figures

FIGURES 1–6. Habitus of Lathrimaeum (types) and Anthobium: 1–L. gracilicorne (holotype), 2–L. abantense (holotype), 3–L. urgelense (holotype), 4–L. hamatum (holotype), 5–A. melanocephalum (Georgia: Svaneti), 6–L. longicorne (lectotype). Scale bar: 1.0 mm.

FIGURES 7–12. Aedeagus of Lathrimaeum (types) and Anthobium (Fig. 7: L. gracilicorne (holotype), Fig. 8: L. abantense (holotype), Fig. 9: A. atrocephalum (Algeria, Adekar), Figs 10–12: A. melanocephalum (Fig. 10: Georgia, Kherkhvashi, Figs 11–12: Karachay-Cherkessia, Malaya Khatipara Mt.): 7–11–parameral view, 12–lateral view. Scale bar: 0.1 mm.