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91 results for “Belostomatidae”
Figs. 11–18 in Guide To The Aquatic Heteroptera Of Singapore And Peninsular Malaysia. X. Infraorder Nepomorpha-Famlies Belostomatidae And Nepidae
Figs. 11–18. Ranatra species, male left parameres, outer view with detail of distal hook. 11, 12, R. gracilis, specimen from Laos, Vientiane Prov. 13, 14, R. parmata, specimen from Indonesia, Sumbawa (CL 2172). 15, 16, R. spinifrons, specimen from Malaysia, Selangor. 17, 18, R. varipes, specimen from Laos, Khammouane Prov.
Figs. 4–6. Cercotmetus species, male parameres. 4, C in Guide To The Aquatic Heteroptera Of Singapore And Peninsular Malaysia. X. Infraorder Nepomorpha-Famlies Belostomatidae And Nepidae
Figs. 4–6. Cercotmetus species, male parameres. 4, C. brevipes, specimen from Vietnam, Quang Tri Prov. 5, C. compositus, specimen from Malaysia, Johor (CL 2220). 6, C. asiaticus, specimen from Vietnam, Gia Lai Prov. (CL 4286).
Figure 1 in Short Communication Mass mortality of Giant Water Bug Lethocerus indicus (Lepeletiler & Serville, 1825) [Heteroptera: Belostomatidae] in Thiruvananthapuram, Kerala State, South India
Figure 1. The dead specimens of Lethocerus indicus (Lepeletiler & Serville, 1825).
Figure 1 in Further distributional records of Lethocerus patruelis (Stål, 1854) (Heteroptera: Belostomatidae) in Greece
Figure 1. Previous known records (grey circles) and new distributional records (black triangles).
Fig. 30 in Guide To The Aquatic Heteroptera Of Singapore And Peninsular Malaysia. X. Infraorder Nepomorpha-Famlies Belostomatidae And Nepidae
Fig. 30. Laccotrephes simulatus Montandon, male, specimen from Malaysia, Johor.
Fig. 8 in Guide To The Aquatic Heteroptera Of Singapore And Peninsular Malaysia. X. Infraorder Nepomorpha-Famlies Belostomatidae And Nepidae
Fig. 8. Ranatra longipes Stål, female, specimen from Indonesia, Java, Bogor.
Fig. 2 in Guide To The Aquatic Heteroptera Of Singapore And Peninsular Malaysia. X. Infraorder Nepomorpha-Famlies Belostomatidae And Nepidae
Fig. 2. Diplonychus rusticus (Fabricius), male, specimen from Philippines, Luzon.
Fig. 7 in Guide To The Aquatic Heteroptera Of Singapore And Peninsular Malaysia. X. Infraorder Nepomorpha-Famlies Belostomatidae And Nepidae
Fig. 7. Cercotmetus brevipes Montandon, female, specimen from Thailand, Chiang Mai Prov.
Fig. 1 in Guide To The Aquatic Heteroptera Of Singapore And Peninsular Malaysia. X. Infraorder Nepomorpha-Famlies Belostomatidae And Nepidae
Fig. 1. Lethocerus indicus (Lepeletier & Serville), male, specimen from Laos, Vientiane Prov.
Data from: A new approach to chromosomal evolution in the giant water bug (Heteroptera: Belostomatidae)
The genus Belostoma, known colloquially as 'giant water bugs', presents striking cytogenetic diversity and extensive chromosome variability. Notwithstanding, its karyotype evolution is not well understood. We analyzed eight species of Belostoma (77 samples). The meiotic analysis revealed 2n=14+XY for B. horvathi and B. candidulum; 2n=22+XY for B. cummings; 2n=26+X1X2Y for B. dentatum, B. elongatum, and B. discretum; and 2n=26+X1X2X3Y for B. testacopallidum and B. dilatatum. All species showed holokinetic chromosomes. Based on heterochromatin distribution patterns and 18S rDNA, the species of the genus Belostoma were separated into four groups. The analysis of C0t-1 DNA showed that the repetitive DNA, partly composed of microsatellite DNA, was absent on the Y chromosome. FISH using a microdissected X chromosome in species with simple sex system presents uniform hybridization in the nuclear region corresponding to the X chromosome. Species with multiple systems revealed discrete markings. The present data in conjunction with the existing literature led us to propose a new evolutionary hypothesis for the group, with an ancestral karyotype with a low diploid number, simple sex determination system, and Nucleolus Organizer Regions (NORs) on the sex chromosomes. That karyotype would have originated other karyotypes through agmatoploidy, simploidy, heterochromatinization, and movement of the 18S rDNA.
FIGURES 10–16 in Belostoma martini (Montandon): description of the instars and redescription of the adult (Hemiptera: Belostomatidae)
FIGURES 10–16. Belostoma martini instars: Dorsal views showing body shape, head, and forewing pads development. First instar, 10: body shape, 11: head, lateral view. Second instar, 12: body shape. Third instar, 13: body shape, 14, head, lateral view. Fourth instar, 15: body shape. Fifth instar, 16: body shape.
FIGURES 2–9. Belostoma martini adult stage, 2 in Belostoma martini (Montandon): description of the instars and redescription of the adult (Hemiptera: Belostomatidae)
FIGURES 2–9. Belostoma martini adult stage, 2) body shape, 3) head dorsal view, 4) head lateral view, 5) thoracic sclerites, 6) abdominal pilosity (7–9) male genitalia 7) dorsal, 8) ventral, and 9) lateral view).
FIGURE 4 in A giant water bug from the Lower Cretaceous Crato Formation of Brazil (Heteroptera: Belostomatidae: Lethocerinae)
FIGURE 4. Lethocerus vetus sp. n., paratype R 63882, photograph of habitus (scale bar represents 10 mm).
FIGURE 1 in A giant water bug from the Lower Cretaceous Crato Formation of Brazil (Heteroptera: Belostomatidae: Lethocerinae)
FIGURE 1. Lethocerus vetus sp. n., holotype i 9560, photograph of general habitus (scale bar represents 10 mm).
FIGURE 3 in A giant water bug from the Lower Cretaceous Crato Formation of Brazil (Heteroptera: Belostomatidae: Lethocerinae)
FIGURE 3. Lethocerus vetus sp. n., holotype i 9560, photograph of abdomen, white arrow, suturelike fold dividing abdominal sternites V–VI; black arrow, spiracle; double black arrow, mesal margin of ventral laterostergite (scale bar represents 10 mm).
FIGURE 2 in A giant water bug from the Lower Cretaceous Crato Formation of Brazil (Heteroptera: Belostomatidae: Lethocerinae)
FIGURE 2. Lethocerus vetus sp. n., holotype i 9560, photograph of hind leg (scale bar represents 10 mm).
FIGURE 1 in Lethocerus patruelis (Stål, 1855) in Italy: a recent introduction or a natural westward spread? (Hemiptera: Heteroptera: Nepomorpha: Belostomatidae)
FIGURE 1. Lethocerus patruelis Ƥ from Torre dell'Orso (Apulia). Total length 79.5 mm (photo A. Durante).
FIGURE 4 in A taxonomic synopsis of Limnogeton Mayr, 1853 (Insecta: Hemiptera: Heteroptera: Belostomatidae)
FIGURE 4. Limnogeton hedenborgi (Stål), external morphology. 3A, Dorsal habitus showing pronotum with longitudinal median carina. 3B–C, Head showing prosternal carina, lateral view: 3C, Female specimen from Egypt. 3D, Female specimen from Senegal. LMC, longitudinal median carina; PC, prosternal carina.
FIGURE 3 in A taxonomic synopsis of Limnogeton Mayr, 1853 (Insecta: Hemiptera: Heteroptera: Belostomatidae)
FIGURE 3. Limnogeton hedenborgi (Stål), external morphology and male genital structures. 3A, Dorsal habitus showing pronotum with longitudinal median carina. 3B, Head showing prosternal carina, lateral view. 3C, Ventral aspect of abdomen showing poorly developed pilosity covering almost half of connexivum. 3D–F, Male genital structures: 3D, Dorsal apical membranous processes arising from phallotheca. 3E–F, Ventral diverticulum of phallosoma showing anterior margins, ventral view. DA, dorsal arms of phallotheca; LMC, longitudinal median carina; LOM, lateral outer margins of ventral diverticulum; MVD, margins of ventral diverticulum; PC, prosternal carina; PIL, pilosity of connexivum.
FIGURE 5 in A taxonomic synopsis of Limnogeton Mayr, 1853 (Insecta: Hemiptera: Heteroptera: Belostomatidae)
FIGURE 5. Limnogeton scutellatum Mayr, external morphology and male genital structures. 5A, Dorsal habitus showing pronotum. 5B, Head showing prosternal carina, lateral view. 5C–D, Male genital structures: 5C, Dorsal apical membranous processes arising from phallotheca. 5D, Ventral diverticulum of phallosoma showing anterior margins, ventral view. LMC, longitudinal median carina; MVD, margins of ventral diverticulum; PC, prosternal carina.
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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)
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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.