Examples of mouthpart variation in sawflies (scanning electron micrographs and light microscopy). Fig. 1. Tenthredo sp. (Tenthredinidae) head with partially exposed mouthparts, maxillary palp (mxp); labium (la); maxilla (mx); mandible (ma); labrum (lb). Fig. 2. Tenthredo sp. (Tenthredinidae) posterior and anterior surfaces of glossa (gl) and paraglossae (pgl) covered with scales. Fig. 3. Eurys nitidus (Pergidae) extended proboscis showing glossa (gl) and hairy paraglossae (pgl); grooved pre-ligular section (pli); maxillary palp (mxp); labial palp (lp).