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Open AccessJournal ArticleDOI

Phylogenetic analysis of hydroporinae (Coleoptera: Dytiscidae) based on larval morphology, with description of first instar of Laccornellus lugubris

TLDR
Larvae of Laccornellus evolved one unique character state within the Hydroporinae, which is the presence of the primary seta AB15 on ventral surface of last abdominal segment.
Abstract
The first instar of Laccornellus lugubris (Aube) is described. A parsimony analysis of selected taxa of the subfamily Hydroporinae based on 48 informative larval characters was conducted using the program PAUP*. The 100 most parsimonious trees support a placement of Laccornellus Roughley & Wolfe outside the tribe Hydroporini as part of a clade made up of Hydrovatus Motschulsky + Canthyporus Zimmermann, which is supported by the absence of the primary seta UR8 and of the primary seta LA2, and the spine-like condition of the primary seta AB10. Larvae of Laccornellus evolved one unique character state within the Hydroporinae, which is the presence of the primary seta AB15 on ventral surface of last abdominal segment.

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Journal ArticleDOI

Systematics of aquatic beetles (Coleoptera): current state and future directions

TL;DR: The current state-of-the-art of water beetle systematics is summarized, including a synthesis of recent literature on how well water beetle taxa are described, the degree to which the authors understand their evolutionary relationships, and in what ways they are being used as model systems in systematics are summarized.
Journal ArticleDOI

Higher-level phylogeny of diving beetles (Coleoptera: Dytiscidae) based on larval characters

TL;DR: A comprehensive higher‐level phylogeny of diving beetles (Dytiscidae) based on larval characters was studied, covering all currently recognized subfamilies and tribes except for the small and geographically restricted Hydrodytinae, where the larva is unknown.
Book ChapterDOI

The Phylogeny and Classification of Predaceous Diving Beetles

TL;DR: The phylogenetics and higher (family-group) classification of extant members of the beetle family Dytiscidae (Coleoptera), or predaceous diving beetles, is reviewed and reassessed.
Journal ArticleDOI

Primary Setae and Pores on the Maxilla of Larvae of the Subfamily Hydroporinae (Coleoptera: Adephaga: Dytiscidae): Ground Plan Pattern Reconsidered

TL;DR: Through an analysis of the primary setae and pores of first-instar larvae of 31 genera of Hydroporinae, and 22 genera belonging to other dytiscid subfamilies, the ancestral system ofPrimary setae, pores, and ground plan pattern of the hydroporine maxilla of the HydropOrinae is reconsidered.
Journal ArticleDOI

Larval morphology of Paroster Sharp, 1882 (Coleoptera: Dytiscidae: Hydroporinae): reinforcement of the hypothesis of monophyletic origin and discussion of phenotypic accommodation to a hypogaeic environment

TL;DR: A cladistic analysis of 41 Hydroporinae species and 63 informative characters supports a monophyletic origin of members of Paroster, which share a labial palpus comprised of three palpomeres and the absence of the primary seta FE7.
References
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Book

MacClade: Analysis of phylogeny and character evolution

TL;DR: MacClade is a computer program that provides theory and tools for the graphic and interactive analysis of molecular and morphological data, phylogeny, and character evolution, yet its ease of use allows beginning students to grasp phylogenetic principles in an interactive environment.
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