Description of immature stages of Laccobius kunashiricus, with a key to genera of the Laccobiini based on larval characters (Coleoptera: Hydrophilidae)
Minoshima Yûsuke N., Iwata Yasuyuki, Fikáček Martin, Hayashi Masakazu
Acta Entomologica Musei Nationalis Pragae 57(1): 97-119, 2017
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Abstract: Immature stages of Laccobius (Laccobius) kunashiricus Shatrovskiy, 1984 are
described based on specimens reared from adults collected in the field. The
egg-case, all larval instars and pupa are described in detail, including primary
and secondary chaetotaxy of the larval head. The biology of the species was
observed and is briefly discussed. We also summarize the knowledge of immature
stages of Laccobius Erichson, 1837 and provide a key to identify larvae of the
known Laccobiini genera.
Key words: Coleoptera, Hydrophilidae, Laccobiini, aquatic beetle, water scavenger beetle, egg-case, larva, pupa, morphology, behaviour, Japan, Palaearctic Region