Worker of Echinotermes biriba sp. n.: A dorsal and lateral views of head and pronotum B mandibles C right fore-tibia D digestive tube from left to right: dorsal, right, ventral and left views. Abbreviations: C = crop, EVS = enteric valve seating, MS = mesenteron, MT = mesenteric tongue, P1–P5 = proctodeal segments.

  Part of: Castro D, Scheffrahn RH, Carrijo TF (2018) Echinotermes biriba, a new genus and species of soldierless termite from the Colombian and Peruvian Amazon (Termitidae, Apicotermitinae). ZooKeys 748: 21-30.