FIGURE 1 in Revision of Megalothorax incertus Börner, 1903 reveals it to be another widespread Palearctic species of the genus (Collembola, Neelidae)

FIGURE 1. Megalothorax incertus sensu nov., Head (A) dorsal, (B) postero-lateral side and (C) dorso-lateral with details on the integumentary channels, a star indicates a corresponding chaeta in (A, B, C), (D) ventral side; (E) labium, bmf=basomedian field, blf=basolateral field; labrum anterior process (F) posterior side, (G) anterior side; (H) maxillary outer lobe (mol) and oral fold (of). Limit of the dorsal secondary granulation outlined in (A) and (B).