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1,009 results for “water beetles”
FIGURE 3 in Revision of the Neotropical water scavenger beetle genus Globulosis García, 2001 (Coleoptera: Hydrophilidae: Acidocerinae)
FIGURE 3. Head in frontal view of Globulosis spp. (A) G. hemisphericus, (B) G. flavus. Scale bar: 0.5 mm.
FIGURE 1 in Revision of the Neotropical water scavenger beetle genus Globulosis García, 2001 (Coleoptera: Hydrophilidae: Acidocerinae)
FIGURE 1. Maximum likelihood phylogeny of 10 populations (mapped at right) of Globulosis based on COI sequences (yellow squares = G. flavus; red circles = G. hemisphericus).
FIGURE 8 in Revision of the Neotropical water scavenger beetle genus Globulosis García, 2001 (Coleoptera: Hydrophilidae: Acidocerinae)
FIGURE 8. Distribution map of all known Globulosis specimens (yellow squares = G. flavus; red circles = G. hemisphericus; blue star = Globulosis sp.).
FIGURE 2 in Revision of the Neotropical water scavenger beetle genus Globulosis García, 2001 (Coleoptera: Hydrophilidae: Acidocerinae)
FIGURE 2. Habitus of Globulosis spp. G. hemisphericus (from Suriname): (A) dorsal, (B) lateral, (C) ventral; G. flavus (paratype): (D) dorsal, (E) lateral, (F) ventral. Scale bar 1 mm.
FIGURE 5 in Revision of the Neotropical water scavenger beetle genus Globulosis García, 2001 (Coleoptera: Hydrophilidae: Acidocerinae)
FIGURE 5. Scanning electron micrographs of G. flavus: (A) head, ventral view, (B) mesosternum, (C) dorsal habitus.
FIGURES 1–7 in Megagraphydrus puzhelongi, sp. n., a new water scavenger beetle from China (Coleoptera: Hydrophilidae: Hydrophilinae)
FIGURES 1–7. Megagraphydrus puzhelongi sp. n. 1) dorsal habitus; 2) ventral habitus; 3) right maxillary palpus; 4) hind leg; 5) pronotum; 6) elytra; 7) aedeagus.
FIGURE 8 in Water beetles from the Bokkeveld Plateau: a semi-arid hotspot of freshwater biodiversity in the Northern Cape of South Africa
FIGURE 8. Habitats on the Bokkeveld Plateau. A) Oorlogskloof Canyon, pools in stream above Papkuilsfontein Waterfall (Site 12); B) Oorlogskloof Reserve, stream pools close to Groot Tuin entrance (Site 13); C) Oorlogskloof Reserve, spring pool at head of stream at Groot Tuin (Site 14). Photos D. T. Bilton.
FIGURE 6 in Water beetles from the Bokkeveld Plateau: a semi-arid hotspot of freshwater biodiversity in the Northern Cape of South Africa
FIGURE 6. Habitats on the Bokkeveld Plateau. A–B) Avontuur Reserve, stream below Fynbos Cottage (Site 5); B) C) Oorlogskloof Reserve, Oorlogskloof River below Driefontein Waterfall (Site 11) Photos D. T. Bilton.
FIGURE 5 in Water beetles from the Bokkeveld Plateau: a semi-arid hotspot of freshwater biodiversity in the Northern Cape of South Africa
FIGURE 5. Habitats on the Bokkeveld Plateau. A) Avontuur Reserve, margins of Kromvlei (Site 8); B) Avontuur Reserve, pools in drying stream (Site 7); C) Oorlogskloof Reserve, wet rocks & stream below Driefontein Waterfall (Sites 9 & 10; stream below large boulders in photo); D) Oorlogskloof Reserve, wet rocks below Driefontein Waterfall (Site 9—with Andy Foggo). Photos D. T. Bilton.
FIGURE 4 in Water beetles from the Bokkeveld Plateau: a semi-arid hotspot of freshwater biodiversity in the Northern Cape of South Africa
FIGURE 4. Habitats on the Bokkeveld Plateau. A) Plateau margin close to Kromvlei on Avontuur Reserve, emphasising isolation from Knersvlakte below; B) Avontuur Reserve, vernal pools on clay (Site 6); C) Vernal pool on sand ca. 1 km E of Vanrhyn's Pass (Site 4); D) Vernal pool on sand/silt ca. 2 km E of Vanrhyn's Pass (Site 1). Photos D. T. & R. Bilton.
FIGURE 3 in Water beetles from the Bokkeveld Plateau: a semi-arid hotspot of freshwater biodiversity in the Northern Cape of South Africa
FIGURE 3. Aedeagi of hydraenid holotypes, ventral and lateral views. A) Parasthetops porcellus sp. nov.; B) Mesoceration castaneum sp. nov.; C) M. chasmum sp. nov.; D) M. sabulosum sp. nov.
FIGURE 1 in Water beetles from the Bokkeveld Plateau: a semi-arid hotspot of freshwater biodiversity in the Northern Cape of South Africa
FIGURE 1. Pterosthetops chrysomallus sp. nov. A) Holotype habitus; B) aedeagus in ventral and lateral views.
FIGURE 7 in Water beetles from the Bokkeveld Plateau: a semi-arid hotspot of freshwater biodiversity in the Northern Cape of South Africa
FIGURE 7. Habitats on the Bokkeveld Plateau. A) Oorlogskloof Canyon, approach to Papkuilsfontein Waterfall (Site 12); B) Oorlogskloof Canyon, pools in stream above Papkuilsfontein Waterfall (Site 12). Photos D. T. Bilton.
FIGURE 2 in Water beetles from the Bokkeveld Plateau: a semi-arid hotspot of freshwater biodiversity in the Northern Cape of South Africa
FIGURE 2. Habitus of hydraenid holotypes. A) Parasthetops porcellus sp. nov.; B) Mesoceration castaneum sp. nov.; C) M. chasmum sp. nov.; D) M. sabulosum sp. nov.
Fig. 9 in Review of the Giant Water Scavenger Beetle Genus Hydrophilus Geoffroy (Coleoptera: Hydrophilidae) of the United States and Canada
Fig. 9. Distribution of Hydrophilus ovatus in the United States and Canada. Filled points are records examined by us. Open points are literature-only records.
Figs. 7–8 in Review of the Giant Water Scavenger Beetle Genus Hydrophilus Geoffroy (Coleoptera: Hydrophilidae) of the United States and Canada
Figs. 7–8. Distribution of Hydrophilus species in the United States and Canada. 7) H. triangularis; 8) H. insularis. Filled points are records examined by us. Open points are literature-only records.
Figs. 3–6 in Review of the Giant Water Scavenger Beetle Genus Hydrophilus Geoffroy (Coleoptera: Hydrophilidae) of the United States and Canada
Figs. 3–6. Abdominal ventrites of Hydrophilus species, showing extent of medial glabrous region. 3) H. ovatus; 4) H. ensifer; 5) H. insularis; 6) H. triangularis.
Fig. 1 in A Stable Isotope Investigation into the Feeding Behavior of Brychius Hungerfordi Spangler (Coleoptera: Haliplidae), a Federally Endangered Crawling Water Beetle
Fig. 1. Keeling Plots of carbon (a) and nitrogen (b) signals against the reciprocal of the mass. The y-intercept is the isotopic value of the source dominating the mixture of Cocconeis and Dichotomosiphon and agrees well with the observed isotopic signature of Dichotomosiphon.
Fig. 2 in A Stable Isotope Investigation into the Feeding Behavior of Brychius Hungerfordi Spangler (Coleoptera: Haliplidae), a Federally Endangered Crawling Water Beetle
Fig. 2. Dual Isotope Plot showing the relation between primary producers and Brychius larvae and adults (consumers have been corrected for trophic enrichment). Key: Larvae (L); Adult (A); Dichotomosiphon (1); Cocconeis (2); Cladophora (3); Spirogyra (4); Chara (5); error bars represent (SD).
Fig. 2 in Chorological and Phenological Analysis of the Water Beetle Fauna (Coleoptera: Adephaga and Polyphaga) of Northern Tunisia
Fig. 2. Proportions of the water beetle fauna of northern Tunisia in four distributional categories.
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