Figs. 1–6. 1 in An Analysis of Larval Cranial Architecture and Mandibular Geometry ofDytiscus carolinusAubé, 1838 (Coleoptera: Dytiscidae)

Figs. 1–6. 1) Illustration of the computation of temporal curvature using a dorsal view of a third-instar cranium (Barman et al. 2013) of Platambus stagninus (Say, 1823). Dytiscus carolinus: 2) Lateral view of a third-instar cranium illustrating computation of cranial orientation; 3) Ventral view of a third-instar mandible illustrating the method for estimating angle of attack (Wall et al. 2006; Barman et al. 2014) and medial (MArc) and lateral (LArc) arcs (Feduccia 1993; Wall et al. 2006; Barman et al. 2014); Ventral view of cranium and mandibles of 4) First instar; 5) Second instar; 6) Third instar. Scale bars = 1 mm. CS = coronal suture; OR = occipital region; TR = temporal region.