Figure

Fig. 20.13. Subfamily Acidocerinae, adults (A–Q) and larvae (a–m). A–F, ventral view and mesoventrite in lateral view: A, Agraphydrus coomani (Orchymont); B–C, Chasmogenus nitescens (Fauvel); D–E, Helochares (s.str.) foveicollis (Montrouzier); F, Helochares (Hydrobaticus) sp. G–J, elytron: G, Agraphydrus coomani; H, Chasmogenus nitescens; I, Helochares (s.str.) foveicollis; J, Helochares (Hydrobaticus) sp. K–M, abdominal apex: K, Chasmogenus nitescens; L, Helochares foveicollis; M, Helochares (Hydrobaticus) sp. N–Q, head in dorsal view: N, Agraphydrus coomani; O, Helochares foveicollis; P, Chasmogenus nitescens; Q, Helochares (Hydrobaticus) percyi Watts. a, habitus of Helochares sg. Hydrobaticus; b–c, larval head: b, Agraphydrus; c, Helochares sg. Hydrobaticus. d, maxilla of Helochares sg. Hydrobaticus; e–g, anterior margin of head: e, Agraphydrus; f, Helochares sg. Hydrobaticus; g, Helochares (s.str.) foveicollis. h–k, mandibles: h, Helochares (s.str.) foveicollis; i, mandibles and anterior margin of head of Chasmogenus nitescens; j, Helochares sg. Hydrobaticus; k, Agraphydrus. l–m, labium: l, Helochares sg. Hydrobaticus; m, Helochares (s.str.) foveicollis. a–f and j–l from Minoshima & Hayashi (2011a) based on non-Australian species Agraphydrus narusei (Satô) and Helochares (Hydrobaticus) nipponicus Hebauer; g–h and m adapted from Watts (2002), i from Anderson (1976).