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

Short, Andrew Edward Z.

doi:10.1111/syen.12270

Cited by 55 publications

(38 citation statements)

References 219 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As beetles with unusual morphology and natural history, and controversial phylogenetic relationships (e.g. Crowson, ; Dettner, , ; Roughley, ; Forsyth, 1968; Lawrence & Newton, ; Beutel & Roughley, ; Shull et al ., ; McKenna et al ., ; Baca et al ., ; see also Short, ), Gyrinidae have received considerable research attention (see e.g. Beutel & Roughley, ).…”

Section: Introductionmentioning

confidence: 99%

On the thoracic anatomy of the Madagascan Heterogyrus milloti and the phylogeny of Gyrinidae (Coleoptera)

Beutel

Yan

Yavorskaya

et al. 2018

Systematic Entomology

View full text Add to dashboard Cite

Gyrinidae is a group of beetles with a unique specialization of swimming on the water surface. Heterogyrus milloti Legros (Heterogyrinae) from Madagascar is a species with various preserved plesiomorphic features. The information on the morphology and biology was very limited until recently, and the thoracic anatomy remained largely unknown. Consequently, the aim of the present study is to describe external and internal thoracic features of Heterogyrus Legros in detail and to interprete them with respect to their phylogenetic and functional significance, with a special focus on the unusual flight apparatus of Gyrinidae. Characters documented with innovative techniques are compared to conditions found in other gyrinid genera and other groups of Adephaga, including characters of other body parts and larvae. A data matrix with 144 characters of adults, larvae and eggs was compiled and analysed cladistically. Gyrinidae excluding Spanglerogyrus Folkers (Heterogyrinae + Gyrininae) is supported by many apomorphies, mainly by a unique locomotor apparatus with paddle-like middle and hind legs. The results confirm Heterogyrus as the earliest diverging branch in Gyrinidae except Spanglerogyrus, implying a sister-group relationship between this genus and Gyrininae, a clade comprising Gyrinini, Dineutini and Orectochilini. The presence of an opening between the mesanepisternum and elytra, reduction of the lateral metafurcal arms, loss of the metathoracic M. furcacoxalis lateralis, and modifications of the head, including the dorsal shift of the upper subcomponent of the compound eyes, are synapomorphies of the three tribes. The monophyly of Gyrinini is moderately well-supported, whereas Orectochilini is strongly supported by different characters including a highly simplified but functioning flight apparatus. A clade comprising Orectochilini and the dineutine genera is suggested by synapomorphies of adults and larvae. The monophyly of Dineutini was supported in a recent study, but not by the characters analysed here. Features of adults, larvae and eggs indicate that Gyrinidae are the sister group to the remaining adephagan families, as suggested in some earlier morphology-based studies and recent analyses of large molecular datasets.

show abstract

Section: Introductionmentioning

confidence: 99%

On the thoracic anatomy of the Madagascan Heterogyrus milloti and the phylogeny of Gyrinidae (Coleoptera)

Beutel

Yan

Yavorskaya

et al. 2018

Systematic Entomology

View full text Add to dashboard Cite

show abstract

“…Seed shrimps are difficult to catch, and therefore not consumed by many predatory larvae. The Dytiscidae is one of the largest families of water beetles, comprising 4303 known species (Short, 2017).…”

Section: Discussionmentioning

confidence: 99%

Mouth morphology of the diving beetle Hyphydrus japonicus (Dytiscidae: Hydroporinae) is specialized for predation on seed shrimps

Hayashi¹,

Ohba

2018

Biological Journal of the Linnean Society

View full text Add to dashboard Cite

Two-shelled organisms, such as bivalves and seed shrimps, protect themselves from external stresses by firmly closing both shells. We found that the diving beetle Hyphydrus japonicus Sharp, 1873 (Dytiscidae: Hydroporinae) larvae frequently prey on seed shrimps. Other predatory aquatic insects have difficulty in capturing seed shrimps owing to the general form of their mandibles. Larvae of H. japonicus bear a projection on the head (the nasale), which is used in conjunction with vertical movements of the mandibles to fixate the valves of their prey and gain access to the soft body within them. This capture method does not destroy shells and is extremely efficient. The present study provides the first report on the use of a unique morphological trait for attacking prey animals without destroying their shells.

show abstract

“…Worldwide, beetles are one of the most abundant and speciose macroinvertebrate groups in inland waters, occurring across the entire hydrological spectrum, from the smallest puddles and phytotelmata, to large lakes and rivers. Water beetles are not a single taxonomic group, and instead result from around 15-20 transitions between land and water during the evolutionary history of the Coleoptera (Jäch & Balke, 2008;Mckenna et al, 2015;Short, 2018). Beetles are diverse and frequent inhabitants of temporary waterbodies, where carnivorous taxa such as diving beetles (Dytiscidae) are often the top predators.…”

Section: Insecta: Coleopteramentioning

confidence: 99%

Deeper knowledge of shallow waters: reviewing the invertebrate fauna of southern African temporary wetlands

et al. 2018

View full text Add to dashboard Cite

show abstract

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

Cited by 55 publications

References 219 publications

On the thoracic anatomy of the Madagascan Heterogyrus milloti and the phylogeny of Gyrinidae (Coleoptera)

On the thoracic anatomy of the Madagascan Heterogyrus milloti and the phylogeny of Gyrinidae (Coleoptera)

Mouth morphology of the diving beetle Hyphydrus japonicus (Dytiscidae: Hydroporinae) is specialized for predation on seed shrimps

Deeper knowledge of shallow waters: reviewing the invertebrate fauna of southern African temporary wetlands

Contact Info

Product

Resources

About