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799 results for “Stick Insects”
Fig. 14. Male terminalia, ventral view. A in Philippine mossy forest stick insects: first record of the genus Otraleus Günther, 1935 in the country, with four new species, and the new genus Capuyanus gen. nov. (Phasmida, Diapheromeridae, Necrosciinae)
Fig. 14. Male terminalia, ventral view. A. Otraleus elizabethae sp. nov. B. Capuyanus magwilangi gen. et sp. nov. Abbreviations: Cer = cercus; Par = paraproct; T 10 = abdominal tergum 10; Tho = thornpad; Vom = vomer.
Fig. 11 in Giant Sticks from Vietnam and China, with three new taxa including the second longest insect known to date (Phasmatodea, Phasmatidae, Clitumninae, Pharnaciini)
Fig. 11. Photographs in natura by the authors. — A–B. Phryganistria heusii yentuensis subsp. nov. A. Mating pair. B. The first author with the 31.7 cm long ♀, Tay Yen Tu N.R., 9 Jul. 2013. — C–D. Phobaeticus trui sp. nov. C. ♂ and ♀, Bach Ma N.P., 13 Jul. 2013. D. ♂, Da Krong N.R., 7 Jul. 2011.
Fig. 10 in Giant Sticks from Vietnam and China, with three new taxa including the second longest insect known to date (Phasmatodea, Phasmatidae, Clitumninae, Pharnaciini)
Fig. 10. Phryganistria spp., photographs in natura by the authors. — A–B. P. bachmaensis. A. ♀, Bach Ma N.P., 13 Jul. 2011. B. ♂, Da Krong N.R., 6 Jul. 2011. — C–D. P. heusii heusii. C. ♀, Tam Dao N.P., 28 Jul. 2011. D. ♂, Tam Dao N.P., 26 Jul. 2011. — E–H. P. tamdaoensis sp. nov. E. ♀, Tam Dao N.P., 29 Jul. 2011. F. ♂, Tam Dao N.P., 29 Jul. 2011. G. ♀, Da Krong N.R., 6 Jul. 2011. H. ♂, Tay Yen Tu N.R., 7 Jul. 2013.
Fig. 9 in Giant Sticks from Vietnam and China, with three new taxa including the second longest insect known to date (Phasmatodea, Phasmatidae, Clitumninae, Pharnaciini)
Fig. 9. Phobaeticus trui sp. nov. — A–F. ♀. A. Habitus, dorsal view. B. Habitus, lateral view. C. Sternum VII and praeopercular organ. D. Mesofemur, lateral view. E. Apex of abdomen, lateral view. F. Apex of abdomen, dorsal view. — G–L. ♂. G. Habitus, dorsal view. H. Habitus, lateral view. I. Apex of abdomen, ventral view. J. Mesofemur, lateral view. K. Apex of abdomen, lateral view. L. Apex of abdomen, dorsal view. C–F, I–L = not to scale.
Fig. 8. Phryganistria heusii yentuensis subsp. nov. — A–F in Giant Sticks from Vietnam and China, with three new taxa including the second longest insect known to date (Phasmatodea, Phasmatidae, Clitumninae, Pharnaciini)
Fig. 8. Phryganistria heusii yentuensis subsp. nov. — A–F. ♀. A. Habitus, dorsal view. B. Habitus, lateral view. C. Sternum VII and praeopercular organ. D. Mesofemur, lateral view. E. Apex of abdomen, lateral view. F. Apex of abdomen, dorsal view. — G–H. Egg. G. Lateral view. H. Dorsal view. — I–N. ♂. I. Habitus, dorsal view. J. Habitus, lateral view. K. Apex of abdomen, ventral view. L. Mesofemur, lateral view. M. Apex of abdomen, lateral view. N. Apex of abdomen, dorsal view. C–H, K–N = not to scale.
Fig. 6 in Giant Sticks from Vietnam and China, with three new taxa including the second longest insect known to date (Phasmatodea, Phasmatidae, Clitumninae, Pharnaciini)
Fig. 6. Phryganistria tamdaoensis sp. nov., captive reared, from Tam Dao N.P. (photographs by Dr Bruno Kneubühler). A. ♀, dorsal view. B. ♀, lateral view. C. ♂, lateral view. D. ♂, dorsal view. — E–F. Freshly hatched nymph. E. Dorsal view. F. Lateral view. — G–J. Egg. G. Dorsal view. H. Detail of operculum and capitulum. I. Polar area. J. Ventral view.
Fig. 7 in Giant Sticks from Vietnam and China, with three new taxa including the second longest insect known to date (Phasmatodea, Phasmatidae, Clitumninae, Pharnaciini)
Fig. 7. Phryganistria tamdaoensis sp. nov. (photographs by Dr Bruno Kneubühler). — A–I. Captive reared, from Da Krong N.R. A. ♀, lateral view. B. ♀, ventral view. C. ♂, ventral view. D. Freshly hatched nymph. — E–H. Egg. E. Dorsal view. F. Detail of operculum and capitulum. G. Polar area. H. Ventral view. — I. ♂, head, pro- and mesothorax, lateral view. — J. Captive reared from Tam Dao N.P., ♂, head, pro- and mesothorax, lateral view.
Fig. 2 in Giant Sticks from Vietnam and China, with three new taxa including the second longest insect known to date (Phasmatodea, Phasmatidae, Clitumninae, Pharnaciini)
Fig. 2. Baculonistria magna comb. nov. (Brunner von Wattenwyl, 1907). — A–E.Holotype ♀ (MNHN, photographs by Emmanuel Delfosse). A. Habitus, dorsal view. B. Habitus, lateral view. C. Apex of abdomen, lateral view. D. Apex of abdomen, dorsal view. E. Labels. — F–J. ♂ (MNHN, photographs by Emmanuel Delfosse). F. Habitus, dorsal view. G. Habitus, lateral view. H. Apex of abdomen, lateral view. I. Apex of abdomen, dorsal view. J. Labels. C–D, H–I = not to scale.
Fig. 1 in Giant Sticks from Vietnam and China, with three new taxa including the second longest insect known to date (Phasmatodea, Phasmatidae, Clitumninae, Pharnaciini)
Fig. 1. Baculonistria chinensis (Brunner von Wattenwyl, 1907). — A–E. Paralectotype ♀ (MNHN, photographs by Emmanuel Delfosse). A. Habitus, dorsal view. B. Habitus, lateral view. C. Apex of abdomen, lateral view. D. Apex of abdomen, dorsal view. E. Labels. — F–J.Lectotype ♂ (©Natural History Museum Vienna, Orthoptera Image Collection, published with permission). F. Habitus, dorsal view. G. Habitus, lateral view. H. Apex of abdomen, lateral view. I. Apex of abdomen, dorsal view. J. Labels. C–D, H–I = not to scale.
Fig. 4 in Giant Sticks from Vietnam and China, with three new taxa including the second longest insect known to date (Phasmatodea, Phasmatidae, Clitumninae, Pharnaciini)
Fig. 4. Phryganistria bachmaensis (Ta & Hoang, 2004) comb. nov., captive reared (photographs by Dr Bruno Kneubühler). A. ♀, ventral view. B. Freshly hatched nymph. C. ♂, dorsal view. D. ♂, ventrolateral view. — E–F. 3rd instar male nymph, apex of abdomen. E. Dorsal view. F. Lateral view. — G–H. 4th instar ♀ nymph, apex of abdomen. G. Dorsal view. H. Lateral view. — I–M. Egg. I. Ventral view. J. Lateral view. K. Detail of operculum and capitulum. L. Polar area. M. Detail of micropylar plate.
Fig. 3 in Giant Sticks from Vietnam and China, with three new taxa including the second longest insect known to date (Phasmatodea, Phasmatidae, Clitumninae, Pharnaciini)
Fig. 3. Phryganistria bachmaensis (Ta & Hoang, 2004) comb. nov. — A–F. ♀. A. Habitus, dorsal view. B. Habitus, lateral view. C. Mesofemur, lateral view. D. Sternum VII and praeopercular organ. E. Apex of abdomen, dorsal view. F. Apex of abdomen, lateral view. — G–H. Egg. G. Dorsal view. H. Lateral view. — I–N. ♂. I. Habitus, dorsal view. J. Habitus, lateral view. K. Mesofemur, lateral view. L. Apex of abdomen, ventral view. M. Apex of abdomen, dorsal view. N. Apex of abdomen, lateral view. C–H, K–N = not to scale.
Fig. 5 in Giant Sticks from Vietnam and China, with three new taxa including the second longest insect known to date (Phasmatodea, Phasmatidae, Clitumninae, Pharnaciini)
Fig. 5. Phryganistria tamdaoensis sp. nov. — A–F. ♀. A. Habitus, dorsal view. B. Habitus, lateral view. C. Mesofemur, lateral view. D. Sternum VII and praeopercular organ. E Apex of abdomen, dorsal view. F. Apex of abdomen, lateral view. — G–H. Egg. G. Dorsal view. H. Lateral view. — I–N. ♂. I. Habitus, dorsal view. J. Habitus, lateral view. K. Mesofemur, lateral view. L. Apex of abdomen, ventral view. M. Apex of abdomen, dorsal view. N. Apex of abdomen, lateral view. C–H, K–N = not to scale.
Data from: Do pheromones contribute to the persistence of asexual populations in a facultatively parthenogenetic stick insect?
<p>Facultative parthenogenesis is a form of reproduction in which females can either lay unfertilised eggs that typically develop into female offspring only, or mate and lay fertilised eggs that develop into male and female offspring. Facultative parthenogens often occur in mixed-sex populations where reproduction is mostly sexual, and all-female populations where reproduction is asexual. How all-female populations avoid invasion by males remains unknown. Here, we investigated the role of volatile and non-volatile (cuticular hydrocarbons, CHCs) pheromones in the persistence of all-female populations in the facultatively parthenogenetic stick insect, <em>Megacrania </em><em>batesii</em>. We found that <em>M. batesii</em> exhibits slight sexual dimorphism in antenna morphology, and behavioural assays provided little evidence that males could locate females solely by volatile pheromones. However, CHC profiles differed substantially between different types of females. Analysis of CHC structure and abundance indicated a clear genetic difference between females from all-female versus mixed-sex populations, as well as a maternal effect of female parthenogenesis versus sexual development. Together, our results suggest that males might rely more on close-range chemical cues to differentiate females, and chemical communication could play a role in the persistence of all-female populations.</p>
Does ecology shape geographical parthenogenesis? Evidence from the facultatively parthenogenetic stick insect Megacrania batesii
<p>Closely related sexual and parthenogenetic species often show distinct distribution patterns, known as geographical parthenogenesis. These patterns, characterized by a mosaic of separate sexual and parthenogenetic populations across their natural range, can also be found in facultative parthenogens – species in which every female is capable of both sexual and parthenogenetic reproduction. The underlying mechanisms driving this phenomenon in nature remain unclear. Features of the habitat, such as differences in host plant phenotypes or niche breadth, could favour sexual or asexual reproductive modes and thus help to explain geographical parthenogenesis in natural insect populations. <em>Megacrania batesii</em> is a facultatively parthenogenetic stick insect that displays geographical parthenogenesis in the wild. We aimed to explore whether sexual and parthenogenetic populations of <em>M. batesii</em> displayed niche differentiation or variations in niche breadth that could explain the separation of the two population types. To do this, we sampled host plants from across the range of <em>M. batesii</em> and quantified phenotypic traits that might affect palatability or accessibility for <em>M. batesii</em>, including leaf thickness, toughness, spike size and density, height, and chemical composition. We also quantified host plant density, which could affect <em>M. batesii</em> dispersal. We found little evidence of phenotypic differences between host plants supporting sexual versus asexual <em>M. batesii</em> populations, and no difference in host-plant density or niche breadth between the two population types. Our results suggest that habitat parameters do not play a substantial role in shaping patterns of geographical parthenogenesis in wild populations of <em>M. batesii</em>. Instead, population sex ratio variation could result from interactions between the sexes or dispersal dynamics.</p>
Fig. 54 in Arumatia, a new genus of Diapheromerinae stick insects (Insecta, Phasmatodea) from Brazil, with the description of five new species and a reassessment of species misplaced in Australian genera
Fig. 54. Holotype of Diapheromera armata Piza, 1973 at MELQ and accompanying labels. Note that the specific epithet was written as armigera on one of the labels but later corrected by pencil to the
Fig. 53 in Arumatia, a new genus of Diapheromerinae stick insects (Insecta, Phasmatodea) from Brazil, with the description of five new species and a reassessment of species misplaced in Australian genera
Fig. 53. Habitats of Arumatia Ghirotto gen. nov. in the Cerrado of Brazil. A–D. Habitat of Arumatia dubia gen. et comb. nov., seasonal forest at Assis, São Paulo (A), seasonal forest at Echaporã, São Paulo (B), savannah formation at Delfinópolis, Minas Gerais (C–D). E. Type locality of Arumatia crassicercata Ghirotto, Crispino & Engelking gen. et sp. nov., gallery forest at Chapada dos Veadeiros plateau, Alto Paraíso de Goiás, Goiás. F. Type locality of Arumatia aramatia Ghirotto gen. et sp. nov., savannah formation in Luzimangues district, Porto Nacional, Tocantins (photo courtesy of Dante Pavan). G–H. Type locality of Arumatia motenata Ghirotto gen. et sp. nov., rocky savannah formations (campos rupestres) at Serra do Cipó district, Santana do Riacho, Minas Gerais. I. Type locality of Arumatia diamante Ghirotto gen. et sp. nov., dense rocky savannah formations (campos rupestres) at Catolés, Abaíra, Bahia (photo courtesy of Pedro H. Martins).
Fig. 45 in Arumatia, a new genus of Diapheromerinae stick insects (Insecta, Phasmatodea) from Brazil, with the description of five new species and a reassessment of species misplaced in Australian genera
Fig. 45. Arumatia motenata Ghirotto gen. et sp. nov., sexual behaviour and mating attachment mechanism, from Serra do Cipó, Minas Gerais, Brazil. A–C. Sequential copulatory behaviour. D–E. Attachment of male and female structures. A. Male (dark) on top of female (green) extends his terga VIII-X anteriorly and touches the ventral surface of the abdomen of the female trying to attach. B. Male attached to the female by the left side and inserting the phallic organ; note abdomen of male curved upwards. C. Male and female in copulation, male hanging from femal; note abdomen of male extended. D–E. Male attached to the praeopercular organ of the female with the posterior margin of its tergum X (arrow), cerci pressing
Fig. 50 in Arumatia, a new genus of Diapheromerinae stick insects (Insecta, Phasmatodea) from Brazil, with the description of five new species and a reassessment of species misplaced in Australian genera
Fig. 50. Arumatia diamante Ghirotto gen. et sp. nov., holotype, ♀ (MZUSP V0650), terminalia morphology. A. Dorsal view. B. Detail of dorsal view. C. Lateral view. D. Ventral view. E. Sixth segment in lateral view showing a tubercle. F. Detail of praeopercular organ, ventral view. G. Detail of external genitalia, lateral view. Abbreviations: Ce = cercus; Ep = epiproct; Gap = gonapophysis; Gpl = gonoplac; Pre = praeopercular organ; Prp = paraproct; Sp = subgenital plate; St = sternum; Tg = tergum. Scale bars: 1 mm.
Fig. 48 in Arumatia, a new genus of Diapheromerinae stick insects (Insecta, Phasmatodea) from Brazil, with the description of five new species and a reassessment of species misplaced in Australian genera
Fig. 48. Arumatia diamante Ghirotto gen. et sp. nov., holotype, ♀ (MZUSP V0650), head and prothorax morphology. A. Head and prothorax in dorsal view. B. Head and prothorax in lateral view. C. Left maxilla in ventral (external) view. D. Head and prothorax in ventral view. Abbreviations: Ant = antennomere; BsI-II = pro- and mesothoracic basisterna; Cly = clypeus; Csc = cervical sclerite; Cx = coxa; Cxp = coxopleurite; Eye = compound eye; Fc = frontal convexity; Fs = prothoracic furcasternite; Ga = galea; Galo = galealobulus; Gl = glossa; Gu = gula; Lac = lacinia; Lb = labrum; Md = mandible; Msn = mesonotum; Mtr = microtrichia; Par = paranota; Pd = pedicellus; Pgl = paraglossa; Plb = labial palpus; Pmx = maxillary palpus; Prn = pronotum; Sc = scapus; Sg = subgena; Sme = submentum. Scale
Fig. 43 in Arumatia, a new genus of Diapheromerinae stick insects (Insecta, Phasmatodea) from Brazil, with the description of five new species and a reassessment of species misplaced in Australian genera
Fig. 43. Male genitalia of Arumatia aramatia Ghirotto gen. et sp. nov. and Arumatia motenata Ghirotto gen. et sp. nov., treated with KOH. A, C, E, G. Treated genitalia of A. arumatia (left side) and A. motenata (right side) in different views. B, D, F, H. Same pictures as respective preceding, structures coloured for visualisation: red = dorsal sclerite; blue = longitudinal lobe; green = basal lobe; yellow = internal sclerotization; white line = area of attachment to the body; inset (F) = detail of internal sclerotization,
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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.