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348 results for “stingless bees”
Figure 1 in New host record for the enigmatic Neotropical mantidfly genus Anchieta Navás, 1909 (Neuroptera, Mantispidae), a mimic of wasps and stingless bees
Figure 1. The potter wasp nest with the possible founding female Montezumia dimidiata (Hymenoptera: Vespidae), from which five specimens of Anchieta sp. nov. (Neuroptera: Mantispidae) were reared out (A). The M. dimidiata nest with a single open cell, with turret, shortly after the collection (B). The nest with three exposed cells (one damaged), including the left cell contained five pupae of Anchieta sp. nov. at different developmental stages. Five days later the specimen in the upper cocoon emerged (C). The first Anchieta sp. nov. (female) to emerge (D). The cell now contains four live pupae of Anchieta sp. nov. at different developmental stages (E).
Figure 2 in Eating with the enemy? Mimic complex between a stingless bee and assassin bugs
Figure 2. Mimic complex between Tetragona clavipes (model) and three species of Notocyrtus. (A and E) Worker of T. clavipes. (B and F) N. foveatus. (C and G) N. dorsalis. (D and H) N. dispersus. (A-D) dorsal view. (E-H) lateral view. Scale bars: 2 mm.
Figure 1 in Eating with the enemy? Mimic complex between a stingless bee and assassin bugs
Figure 1. Diversity of visitors of extrafloral nectaries of Bauhinia forficata Link.(A) Worker of Camponotus rufipes (Fabricius) (Hymenoptera: Formicidae). (B) Dynamine coenus (Fabricius) (Lepidoptera: Nymphalidae). (C) Worker of Tetragona clavipes (Fabricius) (Hymenoptera: Apidae: Meliponini). (D) Notocyrtus dorsalis (Gray) preying an ant C. rufipes. (E) N. dorsalis feeding on extrafloral nectary.
Fig. 3 in Stingless Bee (Hymenoptera: Apidae: Meliponini) Diversity In Dipterocarp Forest Reserves In Peninsular Malaysia
Fig. 3. Stingless bee species accumulation at traps in the six Virgin Jungle Reserves.
Data from: Nesting and interaction of stingless bees (Apidae: Meliponini) in herbaceous plants in the Agricultural Campus of the School of Agricultural and Veterinary Sciences of UNAN-Leon, Nicaragua
<p>En este estudio se determinó la riqueza, abundancia, densidad y distribución geográfica de nidos de abejas sin aguijón en el Campus Agropecuario de la UNAN-León, de igual manera se determinó la interacción de abejas sin aguijón en plantas en floración. Asimismo, se identificaron los sustratos de anidación, se revisaron todos los árboles e infraestructura del Campus Agropecuario y se muestrearon las arvenses y arbusto en floración entre los meses de abril a octubre del 2022. </p>
Figure 19 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part III: A revised infrageneric classification and new species
Figure 19. Lateral habitus of worker of Scaptotrigona (Gymnotrigona) hellwegeri (Friese).
Stingless bees (Apidae: Meliponini) at risk in western Mexico
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Body and wing morphology, flight metabolic rates, and wingbeat frequencies for 13 stingless bee species
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Accelerated landings in stingless bees are triggered by visual threshold cues
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Data from: Age-dependent hypopharyngeal gland size and protein content of stingless bee workers, Tetragonula pagdeni.
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FIGURE 8 in Stingless bees of the genus Nannotrigona Cockerell (Hymenoptera: Apidae Meliponini) in Colombia
FIGURE 8. Female holotype of Nannotrigona pilosa Jaramillo, Ospina & Gonzalez, n. sp. a = Dorsal habitus. b = Lateral habitus. c = Facial view (LABUN26007).
FIGURE 9 in Stingless bees of the genus Nannotrigona Cockerell (Hymenoptera: Apidae Meliponini) in Colombia
FIGURE 9. Male paratype of Nannotrigona pilosa Jaramillo, Ospina & Gonzalez, n. sp. a = Facial view. b = Lateral habitus. c = Dorsal habitus. d = Fifth sternum. e = Sixth sternum. f = Seventh sternum. g = Eighth sternum. h = genital capsule (a: LABUN26008; b–h: LABUN26010).
FIGURE 5 in Stingless bees of the genus Nannotrigona Cockerell (Hymenoptera: Apidae Meliponini) in Colombia
FIGURE 5. Male of Nannotrigona melanocera (Schwarz). a = Facial view. b = Lateral habitus. c = Dorsal habitus. d = Fifth sternum. e = Sixth sternum. f = Seventh sternum. g = Eighth sternum. h = genital capsule (a: LABUN26603; b–f, h: LABUN26601; g: LABUN26599).
FIGURE 1 in Stingless bees of the genus Nannotrigona Cockerell (Hymenoptera: Apidae Meliponini) in Colombia
FIGURE 1. Male of Nannotrigona camargoi Rasmussen & Gonzalez. a = Facial view. b = Lateral habitus. c = Dorsal habitus. d = Fifth sternum. e = Sixth sternum. f = Seventh sternum. g = Eighth sternum. h = genital capsule (a–e, h: LABUN25168; f, g: LABUN22894).
FIGURE 4 in Stingless bees of the genus Nannotrigona Cockerell (Hymenoptera: Apidae Meliponini) in Colombia
FIGURE 4. Male paratype of Nannotrigona gaboi Jaramillo, Ospina & Gonzalez, n. sp. a = Facial view. b = Lateral habitus. c = Dorsal habitus. d = Fifth sternum. e = Sixth sternum. f = Seventh sternum. g = Eighth sternum. h = genital capsule (a–c: LABUN12529; d–h: LABUN12584).
FIGURE 6 in Stingless bees of the genus Nannotrigona Cockerell (Hymenoptera: Apidae Meliponini) in Colombia
FIGURE 6. Female paratype of Nannotrigona occidentalis Jaramillo, Ospina & Gonzalez, n. sp. a = Dorsal habitus. b = Lateral habitus. c = Facial view (IAVH-E-27789).
FIGURE 3 in Stingless bees of the genus Nannotrigona Cockerell (Hymenoptera: Apidae Meliponini) in Colombia
FIGURE 3. Female paratype of Nannotrigona gaboi Jaramillo, Ospina & Gonzalez, n. sp. a = Dorsal habitus. B = Lateral habitus. C = Facial view (LABUN28979).
Data from: Age-based changes in kairomone response mediate task partitioning in stingless bee soldiers (Tetragonisca angustula)
<p>Collective defense is one of the most ubiquitous behaviors performed by social groups. Because of its importance, complex societies may engage a set of defensive specialists, with physical and/or neurological attributes tuned for defense against specific invaders. These strategies must be balanced, however, with the need to flexibly respond to different threat levels and sources. Insect societies rely heavily on olfaction for detecting and communicating in the context of defense. We therefore asked whether threat detection via olfaction is specialized towards invader-specific cues and how this may be integrated into defense task specialization. Colonies of the stingless bee, <em>Tetragonisca angustula</em>, deploy a morphologically distinct sub-caste of larger-bodied workers (soldiers) for colony defense. These soldiers transition between two different guarding tasks as they age, progressing from guarding in a hovering position near the nest entrance to guarding in a standing position on the nest entrance tube. Hovering and standing guards intercept different types of invaders: primarily heterospecific versus conspecific, respectively. We asked whether hovering and standing guarding behaviors were modulated by differential sensitivity to invader-associated olfactory stimuli; then we compared their responses to these cues to those of smaller workers that perform predominantly non-defense tasks. We exposed bees under both field and lab conditions to citral, a kairomone produced by an obligate heterospecific nest robber, primarily intercepted by hovering guards. Consistent with their roles, hovering guards were more likely to move towards citral than were either standing guards or small-bodied bees within a Y-maze. We also presented guards at field nests with dummies of conspecific versus heterospecific invader types, varying whether they included citral odors. Standing guards were more responsive to conspecific intruder scenarios than hovering guards, but heterospecific response differed by presence of citral. Standing and hovering guards responded in similar proportions when citral was absent, but the addition of citral produced a marginally non-significant reduction in standing guard participation. Our results potentially demonstrate differentiated cue-specific responses that correspond to morphological task specialization and age polyethism in these eusocial societies.</p>
Data from: Octopamine increases individual and collective foraging in a neotropical stingless bee
<p>The biogenic amine octopamine is a key modulator of individual and social behaviours in honeybees, but its role in the other group of highly eusocial bees, the stingless bees, remains largely unknown. In honeybees, octopamine mediates reward perception and affects a wide range of reward-seeking behaviours. Thus, we tested the hypothesis that octopamine increases individual foraging effort and collective food source exploitation in the neotropical stingless bee Plebeia droryana. Octopamine treatment caused a significant increase in the number of bees at artificial sucrose feeders and a 1.73-times higher individual foraging frequency. This effect can be explained by octopamine lowering the sucrose response threshold and, thus, increasing the perceived value of the food source. Our results demonstrate that, similar to its effects on honeybees, octopamine increases both individual and collective food source exploitation in P. droryana. This suggests that, despite having evolved many complex behaviours independently, OA might have similar regulatory effects on foraging behaviours in the two groups of highly eusocial bees.</p>
FIGURE 13 in A new stingless bee species of the genus Scaura (Hymenoptera, Apidae) from the Brazilian Atlantic forest, with notes on S. latitarsis (Friese)
FIGURE 13. Map of South America showing the known locality records for Scaura latitarsis (solid triangles) and S. atlantica, sp. nov. (solid circles), in Brazil.
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