Quasicalathus, light microscopic images of the holotypes of Q. agonicollis sp. nov. (31.) and Q. conservans sp. nov. (32, 33.). 31. Ventral side of head showing chaetotaxy of mentum; 32. General view of the amber piece with fossil in dorsal view; 32. Left lateral view. Abbreviations: ce – compound eye; el – elytron; ems – external seta of submentum; gu – gula; ims – internal seta of submentum; msf – mesofemur; mt – mentum; mtf – metafemur; prf – profemur; pt – pronotum.