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129 results for “Anelosimus”
Figure 1. A, B, solitary A. pacificus web, a in Notes on the biology of Anelosimus pacificus Levi, 1963 (Theridiidae, Araneae)-evidence for an evolutionary reversal to a less social state
Figure 1. A, B, solitary A. pacificus web, a flimsy tangle of silk lines with conspicuous globules of glue throughout; C, web of the subsocial A. may Agnarsson, 2005, a typical Anelosimus 'basket' web with dense silk sheet containing living and dead leaves, and aerial threads above, without visible glue; D, the bright white A. pacificus egg sac. All webs have been dusted with corn starch to enhance the visibility of the silk lines.
Figure 64. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 64. A, distribution of A. analyticus, A. pacificus and A. chickeringi; B, distribution of A. octavius, A. jucundus and A. arizona; C, distribution of A. studiosus and A. eximius; D, distribution of A. baeza; E, distribution of A. tosum and A. elegans.
Figure 63. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 63. A, Distribution of the Anelosimus lineage; B, distribution of A. domingo, A. dubiosus and A. jabaquara; C, distribution of A. oritoyacu, A. guacamayos, A. fraternus, A. pantanal and A. puravida.
Figure 59 in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 59. The preferred phylogeny with informal clade names and clade numbers in circles at the nodes.
Figure 57. Characters III. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 57. Characters III. A, Anelosimus nelsoni, note a finger-shaped lower branch of the theridiid tegular apophysis hook (arrow); B, Anelosimus nigrescens, note a blade-like lower branch of the theridiid tegular apophysis hook (arrow); C, Anelosimus ethicus, with a small, barely separate embolic division b (arrow); D, Anelosimus baeza male palp, ventral view, showing the sperm duct trajectory in the tegulum relative to position of sclerites; E, Anelosimus eximius, a schematic view of the sperm duct trajectory from ectal view (view as in G), F, Anelosimus eximius from above; G, Anelosimus baeza ectal view, showing switchbacks I and II.
Figure 58. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 58. A strict consensus of the two most parsimonious cladograms (L = 298, CI = 58, RI = 88). Numbers below branches indicate Bremer support, while those above branches are bootstrap values (above 50%); parsimony jackknife scores were nearly identical to the bootstrap scores and are not shown.
Figure 54. Anelosimus pantanal. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 54. Anelosimus pantanal. A, epiandrous gland spigots; B, male booklung cover; C, male abdominal apodeme; D, male stridulatory pick row; E, female stridulatory pick row; F, anterior lateral spinneret; G, posterior lateral spinneret, right side; H, posterior median spinnerets, anterior is right. Scale bars: A,F–H, 10 µm; B,C, 100 µm; D, 50 µm; E, 20 µm.
Figure 53. Anelosimus pantanal, female. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 53. Anelosimus pantanal, female. A, epigynum ventral; B, epigynum, different specimen from same colony; C same, anterior view. D–F, spinnerets. D, all; E, anterior lateral spinneret, anterior is right; F, posterior lateral and posterior median spinnerets. G, fourth tibia, bearing six dorsal trichobothria (arrows); H, third tibia, bearing five dorsal trichobothria (arrows). Scale bars: A–D, 50 µm; E, 10 µm; F, 20 µm; G,H, 100 µm.
Figure 50. Anelosimus studiosus. A–E, male palp. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 50. Anelosimus studiosus. A–E, male palp. A, mesal; B, ventral; C, ectal; D, details of embolus tip; E, tibia, note three trichobothria (arrows). F, male stridulatory pick row; G, epiandrous gland spigots; H, epigynum. Scale bars: A–C, 100 µm; E,H, 50 µm; D,F,G, 20 µm.
Figure 47. Anelosimus guacamayos. A–E male palp. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 47. Anelosimus guacamayos. A–E male palp. A, mesal; B, apical; C, ventral; D, ectocaudal, arrows indicate the tibial trichobothria; E, details of embolus tip and conductor. F, male stridulatory pick row, right side. Scale bars: A–D, 100 µm; E,F, 20 µm.
Figure 44 in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 44. The 'studiosus group'. A–E, Anelosimus elegans. A, male palp mesal; B, same ventral; C, epigynum; D, internal epigynum dorsal; E, digital photograph of male holotype. F–O, Anelosimus guacamayos. F, male palp mesal; G, same ventral; H, male palp lacking distal E fork; I, epigynum; J, epigynum, female collected with 'forkless' male; K, internal epigynum dorsal; L, female habitus dorsal; M, male habitus dorsal; N, female habitus ectal; O, subadult male habitus ectal.
Figure 42. Anelosimus tungurahua male palp. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 42. Anelosimus tungurahua male palp. A, dorsal view; B, mesal; C, apical; D, ventral; E, ectal; F, details of embolus tip. Scale bars: A–E, 100 µm; F, 10 µm.
Figure 36. Anelosimus tosum, male palp. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 36. Anelosimus tosum, male palp. A, mesal view; B, submesal; C, ventral; D, ectal; E, apicoventral; F, details of embolus tip and conductor. Scale bars: 100 µm.
Figure 37. Anelosimus tosum. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 37. Anelosimus tosum. A, epigynum; B, epiandrous gland spigots; C, female prosoma dorsal; D, female stridulatory pick row; E, egg sac fibres; F, higher magnification of egg sac fibres. Scale bars: A,C–E, 100 µm; B,F, 10 µm.
Figure 39. Anelosimus oritoyacu Ecuador, male palp. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 39. Anelosimus oritoyacu Ecuador, male palp. A, mesal view; B, submesal; C, ventral; D, ectal; E, details of distal sclerites, ventral; F, mesal view of distal sclerites. Scale bars: 100 µm.
Figure 38. Anelosimus tosum. A, female palpal claw. B–G, male. B in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 38. Anelosimus tosum. A, female palpal claw. B–G, male. B, fourth tarsal claws; C, stridulatory pick row; D, anterior lateral spinneret; E, posterior median spinnerets, anterior view; F, cheliceral promarginal teeth; G, first tarsus ventral. Scale bars: A,C,F, 50 µm; B, 20 µm; D,E, 10 µm; G, 100 µm.
Figure 41. Anelosimus oritoyacu. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 41. Anelosimus oritoyacu. A, epigynum; B, epiandrous gland spigots; C, male stridulatory pick row; D, female abdomen surface; E, female tarsus IV; F, female prosoma dorsal; G, male femur I. Scale bars: A,D,F,G, 100 µm; B, 20 µm; C,E, 50 µm.
Figure 62. Biogeography. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 62. Biogeography. A, The geographical distribution of Anelosimus groups – numbers refer to the three lineages found in the Americas; B, taxa replaced with geographical regions on an area cladogram. The most basal Anelosimus occur in the Old World while three separate clades are found in the New World. Three independent dispersal events (numbers) appear to be the most parsimonious explanation of this distribution.
Figure 33. Anelosimus puravida, male palp. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 33. Anelosimus puravida, male palp. A, dorsomesal view; B, apical, submesal; C, ventral; D, ectal, tip of palpus; E, apical, tip of palpus; F, details of embolus tip and conductor. Scale bars: 100 µm.
Figure 29. Anelosimus baeza from Las Caucheras, male palp. A in A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars
Figure 29. Anelosimus baeza from Las Caucheras, male palp. A, dorsoapical view; B, mesal; C, submesal, apical view; D, ventral, note a conspicuous ectal tegular process (arrow); E, details of conductor, subconductor and embolus tip, ventral; F, palpal tibia, with three trichobothria (arrows). Scale bars: 100 µm.
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