A–D: Balticobaetisca bispinata sp. nov., holotype, male subimago. Baltic amber (Eocene), coll. CCHH, BaB 1373/1. A Right forewing in dorsal view, B right and C left hind leg: tps – tibiopatellar suture, 1–5 – tarsal segments; cl – pretarsal claw. D genitalia in ventral view: S1–S2: forceps segments; pe – penis lobes; arrow points to medial indention at halflength of S1. E Balticobaetisca velteni Staniczek and Bechly, 2002, holotype, female imago. Baltic amber (Eocene), coll. SMNS BB–2376. (E) Right foreclaw in dorsal view. F Balticobaetisca stuttgardia Godunko and Krzeminski 2009, holotype, male imago. Baltic Amber (Eocene), coll. SMNS BB–2394. (E) Left forceps in dorsal view: S1–S2: forceps segments, arrow points to medial indention at halflength of S1.

 
 
  Part of: Staniczek AH, Storari AP, Godunko RJ (2022) Revised systematics, phylogeny, and paleontology of the mayfly family Baetiscidae (Insecta: Ephemeroptera). Arthropod Systematics & Phylogeny 80: 389-409. https://doi.org/10.3897/asp.80.e82845