FIGURES 6–12. Hydrovatus crassulus Sharp, 1882, instar II in Description of the second- and third-instar larvae of Hydrovatus crassulus Sharp 1882 (Coleoptera: Dytiscidae: Hydrovatini)

FIGURES 6–12. Hydrovatus crassulus Sharp, 1882, instar II: (6) right antenna, dorsal aspect; (7) left antenna, ventral aspect; (8) left maxilla, dorsal aspect; (9) right maxilla, ventral aspect; (10) right mandible, dorsal aspect; (11) labium, dorsal aspect; (12) labium, ventral aspect. Numbers and lowercase letters indicate primary setae and pores, respectively. Asterisks indicate secondary sensilla. AN: antenna; LA: labium; MN: mandible; MX: maxilla. Scale bars = 0.03 mm.