Ennearthron cornutum ( Gyllenhal, 1827 )

Bezděk, Jan, 2023, New synonyms in western Palaearctic Ciidae (Coleoptera), Zootaxa 5374 (1), pp. 119-128 : 125

Ennearthron cornutum ( Gyllenhal, 1827)

Cis cornutus Gyllenhal, 1827: 626 (original description).

Ptinus concinnus Marsham, 1802: 87 (original description, nomen oblitum, see Orledge & Booth 2016).

Ennearthron ondreji Roubal, 1919: 63 (original description), syn. nov.

Type localities. Ennearthron cornutum : “Svecia [based on the title]”; Ptinus concinnus : “Britannia” [based on the title]; Ennearthron ondreji : “Těberda”.

Types examined. Ennearthron ondreji : Holotype: ♁ ( Figs 20–23 ), “Ca. b. Teberda / VI. 912 Roubal [w, p] // Ondřeji m. [h] / Roubal det. [w, p] // [blank orange rectangular label]” ( SNM).

Distribution. Widely distributed in western Palaearctic; found also in Hokkaido ( Japan), the Jilin province of China ( Królik 2020) and Iran ( Amini et al. 2020).

Host fungi. Bjerkandera adusta (Willd.) P. Karst. , Daedalopsis confragosa (Bolton) J. Schröt. , Dichomitus campestris (Quél.) Domański & Orlicz , Fomes fomentarius (L.) J. J. Kickx, Fomitopsis pinicola (Sw.) P. Karst. , Funalia gallica (Fr.) Bondartsev & Singer , Ganoderma applanatum (Pers.) Pat. , G. carnosum Pat. , Inonotus hispidus (Bull.) P. Karst. , I. nodulosus (Fr.) P. Karst. , I. radiatus (Sowerby) P. Karst. , Irpex bourdotii (Saliba & A. David) Kotir. & Saaren. , Ischnoderma benzoinum (Wahlenb.) P. Karst. , Laetiporus sulphureus (Bull.) Murrill , Phellinus hartigii (Allesch. & Schnabl) Pat. , P. igniarius (L.) Quél., P. robustus (P. Karst.) Bourdot & Galzin , P. tremulae (Bondartsev) Bondartsev & N. P. Borisov , Piptoporus betulinus (Bull.) P. Karst. , Polyporus squamosus (Huds.) Fr. , Porodaedalea pini (Brot.) Murrill , Schizopora paradoxa (Schrad.) Donk , Stereum gausapatum (Fr.) Fr. , S. hirsutum (Willd.) Pers. , Trichaptum abietinum (Pers. ex J. F. Gmel.) Ryvarden ( Reibnitz 1999, Rose 2012, Rose & Zagatti 2016).

Comments. Roubal (1919) described Ennearthron ondreji explicitly based on one male. The differential diagnosis in the original description is missing. There is only information that E. ondreji is of the same size as Octotemnus glabriculus ( Gyllenhal, 1827) and that it does not resemble any known species. The examination of the holotype showed that it is a dark-coloured male of E. cornutum , which is a widespread species whose colouring varies from light brown to almost black. Consequently, I propose the following new synonymy: Ennearthron cornutum ( Gyllenhal, 1827) = Ennearthron ondreji Roubal, 1919 , syn. nov.

Figures

FIGURES 20–23. Ennearthron cornutum (Gyllenhal, 1827) (holotype of E. ondreji Roubal, 1919). 20—dorsal view; 21— lateral view; 22—frontal view; 23—labels.