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461 results for “harvestmen”
FIGURE 5 in Descriptions of three new species of the harvestmen genus Pseudogagrella (Opiliones: Sclerosomatidae: Gagrellinae) from Taiwan, supported by morphological and molecular evidence
FIGURE 5. Pseudogagrella sauteri sp. nov., male (holotype, NCHUZOOL 14837). A, ectal aspect of left pedipalp, arrow indicates a spine-tipped tubercle; B, Medial aspect of left pedipalp; C, medial aspect of left pedipalp (female paratype, NCHUZOOL 14842); D, E, dorsal and lateral views of ocularium, arrow indicates to the front; F, G, ventral and lateral views of penis; H, seminal receptacle (paratype, NCHUZOOL 14842); I, dorsal view of supra-chelicera lamellae; J, medial aspect of left chelicera; K, ectal aspect of left chelicera. s: stylus; g: glans; ap: alate part. A–C, F, G, I–K, scale = 1 mm; D, E, scale = 0.5 mm, H, scale = 0.05 mm.
FIGURE 1 in Descriptions of three new species of the harvestmen genus Pseudogagrella (Opiliones: Sclerosomatidae: Gagrellinae) from Taiwan, supported by morphological and molecular evidence
FIGURE 1. Pseudogagrella dorsomaculata sp. nov., male (holotype, NCHUZOOL 14879). A, B, medial and ectal aspect of left pedipalp; C, medial aspect of left pedipalp (female paratype, NMNS-7707-002); D, E, dorsal and lateral views of ocularium, arrow indicates to the front; F, G, ventral and lateral views of penis; H, seminal receptacle (paratype, NCHUZOOL 14880); I, dorsal view of supra-chelicera lamellae; J, medial aspect of left chelicera; K, ectal aspect of left chelicera. s: stylus; g: glans; ap: alate part. A–C, F, G, I–K, scale = 1 mm; D, E, scale = 0.5 mm, H, scale = 0.05 mm.
FIGURE 6 in Descriptions of three new species of the harvestmen genus Pseudogagrella (Opiliones: Sclerosomatidae: Gagrellinae) from Taiwan, supported by morphological and molecular evidence
FIGURE 6. Pseudogagrella sauteri sp. nov. A, B, dorsal and lateral views of the holotype male (NCHUZOOL 14837); C, D dorsal and lateral views of the female (paratype, NCHUZOOL 14840); E, F, color in live, male (E) and female (F).
FIGURE 4 in Descriptions of three new species of the harvestmen genus Pseudogagrella (Opiliones: Sclerosomatidae: Gagrellinae) from Taiwan, supported by morphological and molecular evidence
FIGURE 4. Pseudogagrella nigridorsa sp. nov. A, B, dorsal and lateral views of male (holotype, NCHUZOOL 14843); C, D dorsal and lateral views of female (paratype, NCHUZOOL 14845); E, color in live, male.
FIGURE 3 in Descriptions of three new species of the harvestmen genus Pseudogagrella (Opiliones: Sclerosomatidae: Gagrellinae) from Taiwan, supported by morphological and molecular evidence
FIGURE 3. Pseudogagrella nigridorsa sp. nov., male (holotype, NCHUZOOL 14843). A, B, medial and ectal aspect of left pedipalp; C, medial aspect of left pedipalp (female paratype, NCHUZOOL 14846); D, E, dorsal and lateral views of ocularium, arrow indicates to the front; F, G, ventral and lateral views of penis; H, seminal receptacle (paratype, NCHUZOOL 14846); I, dorsal view of supra-chelicera lamellae; J, medial aspect of left chelicera; K, ectal aspect of left chelicera. s: stylus; g: glans; ap: alate part. A–C, F, G, I–K, scale = 1 mm; D, E, scale = 0.5 mm, H, scale = 0.05 mm.
FIGURE 2 in Descriptions of three new species of the harvestmen genus Pseudogagrella (Opiliones: Sclerosomatidae: Gagrellinae) from Taiwan, supported by morphological and molecular evidence
FIGURE 2. Appearance of Pseudogagrella dorsomaculata sp. nov. A, B, dorsal and lateral views of male (holotype, NCHUZOOL 14879); C, D, dorsal and lateral views of female (paratype, NCHUZOOL 14880); E, F, color in live, male (E, F) and female (F).
FIGURE 1 in A review of harvestmen (Arachnida: Opiliones) in Slovenia*
FIGURE 1. Detailed zoogeographical division of Slovenia, resulting on some groups of edaphic animals, according to Mršić (1997). Regions (Subregions): Submediterranean (1 Submediterranean
Macronutrient niches and field limitation in a woodland assemblage of harvestmen
<p>1. Description of animals' trophic niches help us understand interactions between species in biological communities that are not easily observed. Analyses of macronutrient niches, i.e. the range of macronutrient (protein:lipid:carbohydrate) ratios selected by generalist feeders, may be a useful alternative approach to inter-species comparisons of diets, especially within taxonomic assemblages of predators where species with similar nutritional requirements are likely to accept similar types of prey.</p> <p>2. Here we analysed the macronutritional niches of a woodland assemblage of seven harvestman species, all supposed to be predators with omnivorous tendencies. Five species (Mitopus morio, Leiobunum gracile, Oligolophus tridens, O. hanseni, Paroligolophus agrestis) were native and two species (Opilio canestrinii, Dicranopalpus ramosus) were recent invaders into the community.</p> <p>3. We compare the fundamental (FMN) and realized (RMN) macronutritional niche positions of the species using a 'double-test procedure', which provides information on whether the species were food limited in their natural habitat, and whether they were limited by specific macronutrients.</p> <p>4. All seven species were food limited and six species were non-protein limited in the field; of these, four species were carbohydrate limited, and in one species females were lipid limited and males carbohydrate limited. These findings add to the notion that predators are mainly non-protein limited in the field.</p> <p>5. The FMN positions of the assemblage fell within 46-50% protein, 29-38% lipid, and 16-22% carbohydrate. The amount of carbohydrate in the self-selected diet combined with carbohydrate limitation confirms that the species are zoophytophagous. Two morphological clusters of species (large long-legged vs. small short-legged species) differed not only in microhabitat (upper vs. lower forest strata) but also in macronutrient selection, where large long-legged species selected higher proportion of carbohydrate than small short-legged species. Thus, morphologically similar species occupy the same habitat stratum and have similar macronutritional niches.</p> <p>6. We discuss the hypothesis that the invasive O. canestrinii might have an impact on native species as it allegedly had in urban environments previously. Two basic assumptions about interspecific resource competition were fulfilled, i.e. high overlap of nutritional requirements and limitation by food and macronutrients.</p>
Outcomes of the mating interactions of Prionostemma sp.5 harvestmen
<p>This dataset contains the information used on the peer-reviewed paper Escalante, I., Elias, D.O. Robustness in action: Leg loss does not affect mating success in male harvestmen. <i>Behav Ecol Sociobiol</i> <b>76, </b>20 (2022). https://doi.org/10.1007/s00265-022-03127-3. Please consult the open-access paper for further information describing the methods on how this data was collected, analyzed, and presented. </p> <p>Briefly, we manipulated the type of leg loss (locomotor or sensory) that males experienced and assessed its impacts on courtship behavior and mating success in a species of Neotropical harvestmen of the genus <em>Prionostemma</em>. We conducted mating trials in which we presented an intact (8-legged) or autotomized (6-legged) male to a 8-legged females, and video recorded their behavior. We qualitatively and quantitatively scored their behavior. Lastly, in the preserved specimens we measured certain morphological variables to correlate them with the behavioral outcome.</p>
Fig. 1 in First record of the expansive harvestmen Dicranopalpus ramosus (Simon, 1909) (Arachnida: Opiliones) in Poland
Fig. 1. Distribution of Dicranopalpus ramosus in Europe: asterisk – newly found position, dots – known data from the nearest location only, shaded area – likely continuous range.
Figs 2 in First record of the expansive harvestmen Dicranopalpus ramosus (Simon, 1909) (Arachnida: Opiliones) in Poland
Figs 2 (a–m). Dicranopalpus ramosus (Simon): a – male body, dorsal view; b – female body, dorsal view; c – male chelicerae, lateral view; d – male chelicerae, frontal view; e – female chelicerae, lateral view; f – female chelicerae, frontal view; g – male pedipalp, dorsal view; h – female pedipalp, dorsal view; i – penis, dorsal view (left) and lateral view (right); j – glans, lateral view: k – receptaculum seminis; l – ovipositor; m – female body, lateral view. Scale bars: 1.0 mm (a–i, m), 0.2 mm (l), 0.1 mm (j–k).
FIGURES 25–28 in From the Ethiopian Bale Mountains hotspot-Filopalpinae subfam. nov., a new taxon of Laniatorean harvestmen based on external and genital morphology (Arachnida, Opiliones, Assamiidae)
FIGURES 25–28. Filopalpus kakaensis sp. nov. Male holotype (25–26); female paratype (27–28). Body lateral view (25, 27) and dorsal view (26, 28), Scale: 1 mm.
FIGURES 1–6 in From the Ethiopian Bale Mountains hotspot-Filopalpinae subfam. nov., a new taxon of Laniatorean harvestmen based on external and genital morphology (Arachnida, Opiliones, Assamiidae)
FIGURES 1–6. Filopalpus joschmidti sp. nov. Body dorsal view. 1–3, 5. Male; 4, 6 female. 1–2. Left pedipalp stretched out and surpassing length of leg II; 1. and 2–3. represent different males (note different equipment of apophyses of rear end of opisthosoma). 4. Female with short pedipalp; 5–6. Distal part of prosoma; note cover of hedgehog-like tubercles with seta on top. A and b in Figs 1 and 2 indicate the pedipalp (a) and leg II (b). Photographs by Jean Severin (1) and Joachim Schmidt (2–6).
FIGURES 11–24 in From the Ethiopian Bale Mountains hotspot-Filopalpinae subfam. nov., a new taxon of Laniatorean harvestmen based on external and genital morphology (Arachnida, Opiliones, Assamiidae)
FIGURES 11–24. Filopalpus joschmidti sp. nov. Male holotype (11–17; 21–23) and female paratype (18–20; 24). 11–12. Penis dorsal and lateral views. 13–15. Glans dorsal, ventral and lateral views. 16–19. Chelicera pro-lateral and retro-lateral views. 20. Pedipalpus retro-lateral view. 21. Pedipalpal femur-patella joint, retro-lateral view male. 22. Pedipalp retro-lateral view. 23. Pedipalpal tibia and tarsus. 24. Ovipositor distal part. Scales: 11–12: 0.3 mm, 13–19: 0.1 mm, 20: 0.5 mm, 21: 0.13 mm, 22: 0.25 mm, 23: 0.5 mm, 24: 0.05 mm.
FIGURES 40–50 in From the Ethiopian Bale Mountains hotspot-Filopalpinae subfam. nov., a new taxon of Laniatorean harvestmen based on external and genital morphology (Arachnida, Opiliones, Assamiidae)
FIGURES 40–50. Filopalpus bale sp. nov. Male holotype (40–48) and female paratype (49–50). 40–41. Penis dorsal and lateral view. 42–45. Glans ventral, dorsal and lateral view, in 39 and 40 seen from different angles. 46–50. Habitus, lateral view (46–49), dorsal view (47, 50) and ventral view (48). Scales: 40–41: 0.3 mm, 42–45: 0.05 mm, 46–50: 1.2 mm.
FIGURES 7–10 in From the Ethiopian Bale Mountains hotspot-Filopalpinae subfam. nov., a new taxon of Laniatorean harvestmen based on external and genital morphology (Arachnida, Opiliones, Assamiidae)
FIGURES 7–10. Filopalpus joschmidti sp. nov. 7–8. Female paratype; 9–10. Male holotype. Body dorsal view (8), lateral view (7, 10) and ventral view (9). Scale: 1 mm.
FIGURES 29–39 in From the Ethiopian Bale Mountains hotspot-Filopalpinae subfam. nov., a new taxon of Laniatorean harvestmen based on external and genital morphology (Arachnida, Opiliones, Assamiidae)
FIGURES 29–39. Filopalpus kakaensis sp. nov. Male holotype (29–32, 34–37) and female paratype (33, 38–39). 29–30. Penis, dorsal and lateral view. 31–32. Glans dorsal and lateral view. 33. Pedipalp retro-lateral view. 34. Pedipalpal trochanter and base of femur. 35. Pedipalpal tibia and tarsus, retro-lateral view. 36–39. Chelicera retro-lateral (36, 38) and pro-lateral view (37–39). Scales: 29–39: 0.3 mm.
FIGURES 66–70 in From the Ethiopian Bale Mountains hotspot-Filopalpinae subfam. nov., a new taxon of Laniatorean harvestmen based on external and genital morphology (Arachnida, Opiliones, Assamiidae)
FIGURES 66–70. Filopalpus niger sp. nov. Female paratype. Habitus in lateral view (66) and dorsal view (67). 68. Pedipalp in retro-lateral view. 69–70. Chelicera in retro-lateral view (69) and pro-lateral view (70). Scales: 66–67: 0.6 mm, 68: 0.5 mm, 69–70: 0.3 mm.
FIGURES 58–65 in From the Ethiopian Bale Mountains hotspot-Filopalpinae subfam. nov., a new taxon of Laniatorean harvestmen based on external and genital morphology (Arachnida, Opiliones, Assamiidae)
FIGURES 58–65. Filopalpus altomontanus sp. nov. Female holotype. 58–60. Habitus in dorsal (58), ventral (59) and lateral view (60). 61–62. Chelicera in pro-lateral-view (61) and retro-lateral view (62). 63. Pedipalp, retro-lateral view. 64. Pedipalpal tibia and tarsus, retro-lateral view. 65. Apophysis and sensory hair on pedipalpal tarsus. Scales: 58–60: 0.6 mm, 61–62: 0.3 mm, 63: 0.5 mm, 65: 0.025 mm.
Figure 59 in Morphology-based cladistics splinters the century-old dichotomy of the pied harvestmen (Arachnida: Gonyleptoidea: Cosmetidae)
Figure 59. Roquettea andina, female holotype (SMF RII 5873/10). A, dorsal view. B, oblique view. C, original label. Photos courtesy Abel Pérez.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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