FIGURE 1. Yprezethinus grimaldii Holotype AMNH Tad-130. A, Habitus with visible abdominal sternites labelled. B in Transitional morphology and Afrotropical affinity of a bythinoplectine rove beetle from the early Eocene of India (Coleoptera: Staphylinidae: Pselaphinae)

FIGURE 1. Yprezethinus grimaldii Holotype AMNH Tad-130. A, Habitus with visible abdominal sternites labelled. B, Head and pronotum with segments of maxillary palpomeres numbered (MP2–MP4). Bythinoplectina-type lateral excavation, eye, apical pseudosegment of maxillary palp (APs) and mandible (Md) indicated. C, Right antenna with antennomeres numbered. Note the club formed from tightly appressed, hemisphere-shaped antennomeres 10 and 11. D, Close-up view of apically globose tubercles of maxillary palpomeres 3 and 4. E, Proximal leg articulation, showing conically projecting metacoxa (MC), short metatrochanter (MT) and femur (F). F, Right metatarsus (F) with bythinoplectine-type enlarged third tarsomere spanning distance between arrowheads, and minute first visible tarsomere.