Figure 3 from: Bonacci T, Brandmayr P, Zetto Brandmayr T, Daniela Perrotta I, Guarino S, Peri E, Colazza S (2011) Volatile compounds released by disturbed and undisturbed adults of Anchomenus dorsalis (Coleoptera, Carabidae, Platynini) and structure of the pygidial gland. ZooKeys 81: 13-25. https://doi.org/10.3897/zookeys.81.1122

Figure 3 - Transmission electron microscope (TEM): A, collecting canal with lumen (lu); the black arrows show interstitial spaces (is) B secretory lobe with secretory lumen (sl) C vesicle (v) with microvilli (mv) D microvilli structure (mv) at highest enlargement (the white arrows show the thin lamina) and E Inner wall of the reservoir with chitinous basal lamina (la) (black arrows) and massive muscle layer around.