Baltistena antiqua (Ermisch, 1941) Batelka & Rosová & Prokop, 2023

Batelka, Jan, Rosová, Kateřina & Prokop, Jakub, 2023, Diversity and morphology of Eocene and Oligocene Mordellidae (Coleoptera), Acta Entomologica Musei Nationalis Pragae 63 (2), pp. 451-478 : 458-459

Baltistena antiqua (Ermisch, 1941) comb. nov.

( Figs 3A–C )

Mordellistena antiqua Ermisch, 1941a: 181 . Holotype: Baltic amber.

Type material examined. HOLOTYPE ( GPIH): ‘ TYPE [p; in black frame, red label] // 36 [p; white label] // D 52 [hw] / Mordellinae [hw] / Mordellistena antiqua [hw] / Determinator: [p] Ermisch [hw] 19 [p] 4i [hw, sic] / coll. A. SCHEELE, Berlin-Lichterfelde [p; white label with black frame and lines, red dot] // MORDELLISTENA [p] / antiqua [hw] / det. Ermisch 194 [p] i [hw, sic; white label] // Mordellistina [sic] antiqua Ermisch 1941 / Baltischer Bernstein / Holotypus ,, Typ.Kat.Nr.3890, Scheele Nr. 36 [p; red label] // Mordellistena antiqua / ERMISCH 1941 / Baltischer Bernstein / GPIH- Scheele -0036 / Holotyp TK-Nr.: 3890 A / Familie: Mordellidae / Gattung: Mordellistena / Syninkl.: Lepidoptera (Köcher) [p; white label]’.

Comments on identification. At least mesotarsomere IV is deeply dilated and bilobed so this species cannot be attributed to Mordellistena . To distinguish it from other Eocene Mordellistenini see the Key below.

Because of its uncertain generic identity this species is transferred here into Baltistena new collective group.

Baltistena goeckei (Ermisch, 1941) comb. nov. Mordellistena goeckei Ermisch, 1941a: 179 . Holotype:J, Baltic amber.

Comments on identification. According to the curator of the GPIH collection only an empty bag with label ‘broken’ was found and the type is considered lost. At the moment we cannot add any comment to this species. To distinguish this species tentatively from other Eocene Mordellistenini see the note after the key below.

Because the generic identity of this species cannot be investigated and supported, it is transferred here into Baltistena new collective group.

Figures

Figs 3. A–J – Mordellistenini, Baltic amber. A–C – Baltistena antiqua (Ermisch, 1941), holotype: A – thorax ventrally. B, C – hind legs. D–J – Baltistena korschefskyi (Ermisch, 1941), SDEI-Amb-000639, lectotype: D, E – habitus; F – head and thorax anteroventrally; G – hind legs; H – maxillary palpomeres IV (black arrows); I – maxillary palpomere IV and antennomeres I–IV; J – pronotal disc dorsally. Scale bars:A, B, G – 0.3 mm; C, H – 0.2 mm; D – 1 mm; E, F – 0.5 mm; I – 0.1 mm.