Lamprosomatinae

Bukejs, Andris & Nadein, Konstantin, 2015, First fossil Lamprosomatinae leaf beetles (Coleoptera: Chrysomelidae) with descriptions of new genera and species from Baltic amber, Zootaxa 3931 (1), pp. 127-139 : 137

Key to fossil Lamprosomatinae

1. Vertex with longitudinal median groove, frons with groove at inner and upper margins of eye; eyes weakly notched; lateral margins of pronotum concave and without carina; prohypomera concave on whole surface; epipleura with weak projection in basal 1/3; legs strongly flattened................................................ Succinoomorphus warchalowskii

- Vertex without longitudinal median groove, frons without groove at inner and upper margins of eye; eyes entire, not notched; lateral margins of pronotum straight and with carinate borders; prohypomera concave in posterior 1/3; epipleura with strong projection in basal 1/3; legs slightly flattened................................................................ 2

2. Legs shorter, tibiae more widened apically; eyes large; elytral punctures smaller, punctures distinctly arranged in rows intermixed by fine and obscure punctures between them, punctural rows regular................. Archelamprosomius balticus

- Legs longer, tibiae not widened apically; eyes small; elytral punctures larger and subuniform, punctural rows confused................................................................................. Archelamprosomius kirejtshuki