Fig. 13 in Taxonomy, larval morphology and cytogenetics of Lihelophorus, the Tibetan endemic subgenus of Helophorus (Coleoptera: Hydrophiloidea)

Fig. 13. Head appendages of larvae of Lihelophorus and Helophorus s.str. a–d – mandibles in dorsal view: a – H. (H.) liguricus Angus, 1970 (left mandible); b – H. (Lihelophorus) yangae sp. nov. (left mandible); c–d – H. (Lihelophorus) lamicola Zaitzev, 1908 (c – left mandible; d – right mandible). e–f – left antenna in dorsal view: e – H. (H.) liguricus Angus, 1970; f – H. (Lihelophorus) yangae sp. nov. g–j – labium: g–h – H. (Lihelophorus) yangae sp. nov. (g – ventral; h – dorsal); i–j – H. (Lihelophorus) lamicola Zaitzev, 1908 (i – ventral; j – dorsal). Abbreviations: mp – mandibular penicillus; rt – retinacular tuft.