著者

Minoshima Yûsuke Hayashi Masakazu

出版者

Magnolia Press

雑誌

Zootaxa (ISSN:11755326)

巻号頁・発行日

vol.3351, pp.47-59, 2012-06-19

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The larval morphology of Amphiops mater mater Sharp, 1873 is described, including chaetotaxy and morphological transformation between instars. Among genera of the family Hydrophilidae, the larvae of Amphiops Erichson, 1843 may be distinguished by the following combination of characters: coronal line present; clypeolabrum almost symmetrical; mandibles symmetrical and with three inner teeth; dorsal surface of palpomere 1 completely sclerotized; mentum with strongly projecting and sharply pointed anterior corners; ligula absent; spiracular atrium well developed. Several primary sensilla are absent from all instars of A. mater mater, in contrast to the stable chaetotaxy in the majority of Hydrophilidae species studied in detail to date.

著者

Minoshima Yûsuke Hayashi Masakazu

出版者

Taylor & Francis

雑誌

Journal of Natural History (ISSN:00222933)

巻号頁・発行日

vol.45, no.45-46, pp.2757-2784, 2011-10-20

被引用文献数

5

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The larval morphology of the genus Hydrocassis Fairmaire, 1878 is described on the basis of three species of the genus: second instar of H. jengi Satô, 1998, all instars of H. lacustris (Sharp, 1884) and second and third instars of H. uncinata Ji et Schödl, 1998; the former two belong to the H. scapulata species group and the latter to the H. scaphoides species group. Primary chaetotaxy of the larval head of Hydrocassis is described based on the first instar larvae of H. lacustris. Larval morphology of all genera of Sperchopsini with known larvae is summarized based on descriptions and figures from the literature, which are compared with Hydrocassis: larval morphology of Hydrocassis is similar to that of Sperchopsis, and the presumably closely related genus Ametor is distinguishable from Hydrocassis by characters of larval morphology. A key to the Sperchopsini genera on the basis of larval characters is provided.