Fig. 3. Proboscis cross sections of Philoliche rostrata. A. Proximal part; labrum (lbr) with epipharyngeal (eph) food canal (fc), mandibles (md) and laciniae stylet (ls), in between
hypopharynx (hph) with salivary duct (sd). The piercing structures are sheathed in the labium (lb). B. Distal part; prementum (p) containing the labial food canal (fc) lined by the
paraphyses (pp) and closed by a dorsal tongue and groove joint (tgj). C. Apical labella with pseudotracheal system (ps) and collecting canals (cc).