Figure 12 from: Rocha MM, Constantini JP (2015) Internal ornamentation of the first proctodeal segment of the digestive tube of Syntermitinae (Isoptera, Termitidae). Deutsche Entomologische Zeitschrift 62(1): 29-44. https://doi.org/10.3897/dez.62.8550

Figure 12 - Labiotermes emersoni. (a) Schematic drawing of P1 showing arrangement of spines. (b–d) Photomicrographs: (b) Detail of spines in the distal region; (c) General view of the three branches of spines between the mesenteric tongues; (d) Detail of middle branch of spines.