Quasicalathus elpis (Ortuño and Arillo 2009), light microscopic images of specimens “Groehn 7889” (6–8.) and “Groehn 7962” (9–12.). 6, 10. General view of the amber pieces (in Fig. 6, only the part of the large amber piece bearing the Quasicalathus fossil is shown); 7. Ventral side of body; 8. Left mesotarsi iv + v; 9. Pronotum and anterior part of elytra, left side of body; 11, 12. Medial part of left elytron (Fig. 12 shows the enlarged part of the elytron marked by the white frame in Fig. 11; the white arrow points to the insertion of the discal seta). Abbreviations: bs – insertion of the pronotal laterobasal seta; hm – humerus; I–VIII – elytral intervals 1–8.