The unknown larva of Anodocheilus Babington (Coleoptera: Dytiscidae: Hydroporinae: Bidessini): Description of A. maculatus Babington and chaetotaxic considerations

Larval morphology of the New World dytiscid genus Anodocheilus Babington is studied. For this purpose, the three larval instars of A. maculatus Babington are described and illustrated for the first time, with particular emphasis on the morphometry and chaetotaxy. First-instar larva of Anodocheilus c...

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Detalles Bibliográficos
Autores principales: Michat, M.C., Torres, P.L.M.
Formato: JOUR
Materias:
Anodocheilus
Bidessini
Chaetotaxy
Dytiscidae
Larval morphology
Bidessus
Coleoptera
Hydroporinae
Liodessus
Uvarus
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00028320_v132_n3-4_p431_Michat
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00028320_v132_n3-4_p431_Michat2023-10-03T13:54:36Z The unknown larva of Anodocheilus Babington (Coleoptera: Dytiscidae: Hydroporinae: Bidessini): Description of A. maculatus Babington and chaetotaxic considerations Michat, M.C. Torres, P.L.M. Anodocheilus Bidessini Chaetotaxy Dytiscidae Larval morphology Anodocheilus Bidessini Bidessus Coleoptera Dytiscidae Hydroporinae Liodessus Uvarus Larval morphology of the New World dytiscid genus Anodocheilus Babington is studied. For this purpose, the three larval instars of A. maculatus Babington are described and illustrated for the first time, with particular emphasis on the morphometry and chaetotaxy. First-instar larva of Anodocheilus can be distinguished from those of Liodessus Guignot and Amarodytes Régimbart (the only other bidessines known as first instars) in its more elongate siphon. All Bidessini genera known as first-instar larvae are characterized by the absence of pore ABc. This pore is consistently present in the remaining hydroporines. Third-instar larva of Anodocheilus has an elongate siphon and a short first urogomphomere. These features link the genus to Uvarus Guignot and Bidessus Sharp. The remaining known Bidessini genera have a short siphon and an elongate first urogomphomere. The presence of two contiguous pores on a very small bulge in the stipes of Anodocheilus larvae reinforces the hypothesis that hydroporines lost the galea secondarily. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00028320_v132_n3-4_p431_Michat
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Anodocheilus
Bidessini
Chaetotaxy
Dytiscidae
Larval morphology
Anodocheilus
Bidessini
Bidessus
Coleoptera
Dytiscidae
Hydroporinae
Liodessus
Uvarus
spellingShingle Anodocheilus
Bidessini
Chaetotaxy
Dytiscidae
Larval morphology
Anodocheilus
Bidessini
Bidessus
Coleoptera
Dytiscidae
Hydroporinae
Liodessus
Uvarus
Michat, M.C.
Torres, P.L.M.
The unknown larva of Anodocheilus Babington (Coleoptera: Dytiscidae: Hydroporinae: Bidessini): Description of A. maculatus Babington and chaetotaxic considerations
topic_facet Anodocheilus
Bidessini
Chaetotaxy
Dytiscidae
Larval morphology
Anodocheilus
Bidessini
Bidessus
Coleoptera
Dytiscidae
Hydroporinae
Liodessus
Uvarus
description Larval morphology of the New World dytiscid genus Anodocheilus Babington is studied. For this purpose, the three larval instars of A. maculatus Babington are described and illustrated for the first time, with particular emphasis on the morphometry and chaetotaxy. First-instar larva of Anodocheilus can be distinguished from those of Liodessus Guignot and Amarodytes Régimbart (the only other bidessines known as first instars) in its more elongate siphon. All Bidessini genera known as first-instar larvae are characterized by the absence of pore ABc. This pore is consistently present in the remaining hydroporines. Third-instar larva of Anodocheilus has an elongate siphon and a short first urogomphomere. These features link the genus to Uvarus Guignot and Bidessus Sharp. The remaining known Bidessini genera have a short siphon and an elongate first urogomphomere. The presence of two contiguous pores on a very small bulge in the stipes of Anodocheilus larvae reinforces the hypothesis that hydroporines lost the galea secondarily.
format JOUR
author Michat, M.C.
Torres, P.L.M.
author_facet Michat, M.C.
Torres, P.L.M.
author_sort Michat, M.C.
title The unknown larva of Anodocheilus Babington (Coleoptera: Dytiscidae: Hydroporinae: Bidessini): Description of A. maculatus Babington and chaetotaxic considerations
title_short The unknown larva of Anodocheilus Babington (Coleoptera: Dytiscidae: Hydroporinae: Bidessini): Description of A. maculatus Babington and chaetotaxic considerations
title_full The unknown larva of Anodocheilus Babington (Coleoptera: Dytiscidae: Hydroporinae: Bidessini): Description of A. maculatus Babington and chaetotaxic considerations
title_fullStr The unknown larva of Anodocheilus Babington (Coleoptera: Dytiscidae: Hydroporinae: Bidessini): Description of A. maculatus Babington and chaetotaxic considerations
title_full_unstemmed The unknown larva of Anodocheilus Babington (Coleoptera: Dytiscidae: Hydroporinae: Bidessini): Description of A. maculatus Babington and chaetotaxic considerations
title_sort unknown larva of anodocheilus babington (coleoptera: dytiscidae: hydroporinae: bidessini): description of a. maculatus babington and chaetotaxic considerations
url http://hdl.handle.net/20.500.12110/paper_00028320_v132_n3-4_p431_Michat
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