Fig. 2 in Batriscydmaenus Parker and Owens, New Genus, and Convergent Evolution of a "Reductive" Ecomorph in Socially Symbiotic Pselaphinae (Coleoptera: Staphylinidae)

Fig. 2. Batriscydmaenus tishechkini, confocal images of male paratype. A) Head, lateral view, arrow indicates ocular-mandibular carina, B) Head, dorsal view, with apically notched scape and laterally notched palpomere 4 (arrow) indicated, C) Labrum with four setae (arrow) on epipharynx, D) Prothorax, lateral view, boxed region enlarged in D' to show spatulate setae; E) Mesoventrite with foveae labeled according to their possible homology to the pselaphine foveation pattern of Chandler (2001): ppf = prepectal fovea; lmvf = lateral mesoventral fovea; mmvf = median mesoventral fovea; MCC = anterior edge of mesocoxal cavity, F) Protarsus (apical tarsomere enlarged in F' to show tarsal claws) and apical protibial region showing transverse sulcus (arrow).