Fig. 3 in Redescription of Formosan subterranean termite, Coptotermes formosanus (Blattodea: Rhinotermitidae), with three new synonyms from China

Fig. 3. Morphological variation of fontanelle shape and head shape of Coptotermes formosanus Shiraki, 1909. a–h – variability of head shapes: a–d – gradual shape change from rounded to pear-shape; e–h – gradual shape change from rounded rectangle to pear-shape. i–l – variability of fontanelle shapes: i–k – triangle; l – arched.