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1,009 results for “water beetles”
Figs 27–29. 27–28 in Adephagous water beetles (Coleoptera: Gyrinidae, Haliplidae, Noteridae, Dytiscidae) of Yemen and Dhofar region (Oman) with description of a new Hyphydrus from Socotra Island
Figs 27–29. 27–28 – Dineutus arabicus Régimbart, 1907: 27 – habitus of male syntype (12.5 mm); 28 – median lobe in ventral view. 29 – Dineutus sp. ♀ (Yemen, Jabal Bura) (15.0 mm). Not in scale.
Fig. 10 in Fossil water scavenger beetles of the subtribe Hydrobiusina (Coleoptera: Hydrophilidae) from the Late Oligocene locality of Aix-en-Provence (France)
Fig. 10. Distribution of recent and fossil species of the genus Limnoxenus. F – Late Oligocene record of L. olenus sp. nov.
Figs. 7–8 in Fossil water scavenger beetles of the subtribe Hydrobiusina (Coleoptera: Hydrophilidae) from the Late Oligocene locality of Aix-en-Provence (France)
Figs. 7–8. 'Hydrobius' obsoletus Heer, 1856, holotype (7 – photograph in the light from above; 8 – photograph in the light from side).
Figs. 3–6 in Fossil water scavenger beetles of the subtribe Hydrobiusina (Coleoptera: Hydrophilidae) from the Late Oligocene locality of Aix-en-Provence (France)
Figs. 3–6. Limnoxenus olenus sp. nov. 3–4 – holotype (3 – part, 4 – counterpart); 5–6 – paratype (5 – part, 6 – counterpart).
Figs. 1–2 in Fossil water scavenger beetles of the subtribe Hydrobiusina (Coleoptera: Hydrophilidae) from the Late Oligocene locality of Aix-en-Provence (France)
Figs. 1–2. Limnoxenus olenus sp. nov., holotype (1 – part, 2 – counterpart). Abbreviations: aps – anapleural suture; aes3 – anepisternum 3; cxc2 – mesocoxal cavities; fcs – frontoclypeal suture; guls – gular suture; mxp4 – maxillary palpomere 4; msd – mesoventrite depression; msv – mesoventrite; mt – mentum; mtv – metaventrite; prc – prosternal carina; sc – scutellar shield; sstr – elytral sutural stria; tf – transverse fold of prothorax.
Fig. 9 in Fossil water scavenger beetles of the subtribe Hydrobiusina (Coleoptera: Hydrophilidae) from the Late Oligocene locality of Aix-en-Provence (France)
Fig. 9. Single most parsimonous tree of the analysis using implied weighting. Full dot: unique (syn)apomorphy, empty dot: homoplasy or reversal apomorphy. Only the part of the tree containing the species of Hydrobiusina is shown.
Figs 2–4 in Hydrophilus harpe sp. nov., a remarkable new species of giant water scavenger beetle from Brazil (Coleoptera: Hydrophilidae)
Figs 2–4. Hydrophilus (D.) harpe sp. nov. 2 – male paratype, head, ventral view; 3 – male paratype, protarsus; 4 – male holotype, aedeagus, dorsal and ventral views.
Figure 1-5. Scirtes oblongus. 1 in More new distribution records for Florida water beetles (Coleoptera: Dytiscidae, Elmidae, Hydrophilidae, Scirtidae), with additional notes on Scirtes oblongus Guérin-Méneville
Figure 1-5. Scirtes oblongus. 1) Immaculate form, Palm Beach County, FL. 2) Vittate form, Highlands County, FL. 3) Broadly striped form, Vera Cruz, Mexico. 4) Hind coxae, vittate form, Palm Beach County, (margins emphasized). 5) Male genitalia, Havana, Cuba.
Fig. 1 in Two new species of madicolous water beetle from South Africa (Coleoptera: Hydraenidae)
Fig. 1. Habitus of Coelometopon and Oomtelecopon species. (a) C. glenavoni sp. n., holotype; (b) O. disjunctum sp. n., holotype; (c) O. setosus. Scale bar = 1 mm.
Fig. 3 in Two new species of madicolous water beetle from South Africa (Coleoptera: Hydraenidae)
Fig. 3. Type locality of C. glenavoni sp. n., Glen Avon Falls, Boschberg, Somerset East. (a) general view of falls and surrounding habitat; (b) close up of rockfaces with seepages occupied by Coelometopon.
Data from: Testing metabolic cold adaptation and the climatic variability hypotheses across the latitudinal range of a widespread, supratidal water beetle
Open the record for dataset details and reuse information.
Fig. 6 in Taxonomy of Guatemalan water beetles in the genus Hydrochus (Coleoptera: Hydrochidae)
Fig. 6. Hydrochus sinuatus sp. nov., habitus and male genitalia of holotype.
Going underwater! Multiple origins and functional morphology of piercing-sucking feeding and tracheal system adaptations in water scavenger beetle larvae (Coleoptera: Hydrophiloidea)
<p>Supplementary videos:</p> <p>Video S1. Typical feeding behavior of chewing larvae.<em> Tropisternus latus</em> Brullé, 1837 first-instar larva. Note that feeding occurs above water surface.</p> <p>Video S2. Alternative chewing feeding strategy of moluscivorous larvae. <em>Hydrophilus (Dibolocelus) palpalis </em>Brullé, 1837 second-instar larva feeding.</p> <p>Video S3. Piercing-sucking feeding behavior of <em>Hemiosus dejeanii </em>(Solier, 1849) third-instar larva. Note that feeding occurs under water surface.</p> <p>Video S4. Piercing-sucking feeding behavior of <em>Oocyclus magnifica </em>Hebauer & Wang, 1998. Note that feeding occurs inside water film.</p>
Irreversible habitat specialization does not constrain diversification in hypersaline water beetles
<p>Specialization to extreme environments is often considered an evolutionary dead-end, leading to irreversible adaptations and reduced evolvability. There is, however, mixed evidence of this macroevolutionary pattern, and limited data from speciose lineages. Here, we tested the effect of habitat specialization to hypersaline waters in the diversification rates of aquatic beetles of the genus <i><span>Ochthebius </span></i><span>(Coleoptera, Hydraenidae), using a molecular phylogeny with more than 50% of the 546 recognized species, including representatives of all subgenus and species groups but one. Phylogenies were built combining mitochondrial and nuclear genes, with the addition of 42 mitochondrial genomes. Using Bayesian methods of character reconstruction, we show that hypersaline tolerance is an irreversible ecological specialization that arose multiple times independently. Two lineages of </span><i><span>Ochthebius</span></i><span> experienced a significant increase in diversification rates, one of them inhabiting hypersaline waters, but there was no overall correlation with habitat or any significant decrease in diversification rates despite the irreversibility of the hypersaline tolerance.</span><span> Our study tested for the first time the impact of hypersaline habitat specialization on diversification rates, without support of being an evolutionary dead-end. On the contrary, multiple and ancient lineages fully adapted to these extreme osmotic conditions seem able to diversify over long evolutionary periods.</span></p>
FIGURE 1 in Limnebius acupunctus, a new species of water beetle from Australia and Papua New Guinea (Coleoptera: Hydraenidae)
FIGURE 1. Limnebius acupunctus holotype. Dorsal and lateral habitus.
FIGURE 10 in A revision of the South African endemic water beetle genus Pneuminion Perkins (Coleoptera: Hydraenidae)
FIGURE 10. Pneuminion nanum holotype. Dorsal and lateral habitus.
FIGURE 9 in A revision of the South African endemic water beetle genus Pneuminion Perkins (Coleoptera: Hydraenidae)
FIGURE 9. Pneuminion punctatum holotype. Dorsal and lateral habitus.
FIGURE 6 in A revision of the South African endemic water beetle genus Pneuminion Perkins (Coleoptera: Hydraenidae)
FIGURE 6. Pneuminion natalensis holotype. Dorsal and lateral habitus.
FIGURE 4 in A revision of the South African endemic water beetle genus Pneuminion Perkins (Coleoptera: Hydraenidae)
FIGURE 4. Pneuminion balfourbrownei holotype. Dorsal and lateral habitus.
FIGURE 3 in A revision of the South African endemic water beetle genus Pneuminion Perkins (Coleoptera: Hydraenidae)
FIGURE 3. Pneuminion endroedyi holotype. Dorsal and lateral habitus.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.