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59 results for “Scaptotrigona”
Figures 37–38 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part III: A revised infrageneric classification and new species
Figures 37–38. Facial views of workers of Scaptotrigona Moure. 37. Scaptotrigona (Baryorygma) bipunctata (Lepeletier). 38. S. (B.) tricolorata Camargo.
Figures 10–11 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part III: A revised infrageneric classification and new species
Figures 10–11. Mesosomal dorsa of Scaptotrigona Moure. 10. Scaptotrigona (Gymnotrigona) hellwegeri (Friese). 11. S. (Astegotrigona) wheeleri (Cockerell).
Figures 12–14 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part III: A revised infrageneric classification and new species
Figures 12–14. Worker of Scaptotrigona (Eoscaptotrigona) totobi, new species. 12. Lateral habitus. 13. Dorsal habitus. 14. Facial view.
Figures 7–9 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part III: A revised infrageneric classification and new species
Figures 7–9. Worker of Scaptotrigona (Dasytrigona) fulvicutis (Moure). 7. Lateral habitus. 8. Facial view. 9. Posterolateral view of metasomal dorsum.
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).
Data from: Genetic differentiation in the stingless bee, Scaptotrigona xanthotricha Moure, 1950 (Apidae, Meliponini): a species with wide geographic distribution in the Atlantic rainforest
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Data from: Queen execution, diploid males, and selection for and against polyandry in the Brazilian stingless bee Scaptotrigona depilis
Female mating frequency varies. Determining the causes of this variation is an active research area. We tested the hypothesis that in stingless bees, Meliponini, single mating is due to the execution of queens that make a matched mating at the CSD (complementary sex determination) locus and have diploid male offspring. We studied the Brazilian species Scaptotrigona depilis. We made up 70 test colonies so that 50% (single matched mating), 25% (double mating), 12.5% (4-mating), or 0% (single non-matched mating) emerging brood were diploid males. Queen execution following diploid male emergence was equal and high in colonies producing 50% (77% executed) and 25% (75%) diploid males, versus equal and low in colonies producing 12.5% (7%) and 0% (0%) diploid males. These results show that queens that mate with two males with similar paternity suffer an increased chance of being executed, which selects against double mating. However, double mating with unequal paternity (e.g., 25:75), which occasionally occurs in S. depilis, is selectively neutral. Single mating and double mating with unequal paternity form one adaptive peak. The results show a second adaptive peak at 4-mating. However, this is inaccessible via gradual evolutionary change in a selective landscape with reduced fitness at double mating.
Figures 62–63 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part II: Subgroup A of the postica species group
Figures 62–63. Worker of Scaptotrigona faviziae, new species. 62. Lateral view of head, arrow indicating genal tooth. 63. Lateral habitus.
Figures 29–31 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part II: Subgroup A of the postica species group
Figures 29–31. Worker of Scaptotrigona magdalenae, new species, light morph. 29. Lateral habitus. 30. Dorsal habitus. 31. Facial view.
Figures 51–52 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part II: Subgroup A of the postica species group
Figures 51–52. Workers of Scaptotrigona illescasi, new species. 51. Lateral habitus, darker individual. 52. Lateral habitus, lighter individual.
Figures 37–39 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part II: Subgroup A of the postica species group
Figures 37–39. Drone of Scaptotrigona magdalenae, new species. 37. Lateral habitus. 38. Dorsal habitus. 39. Facial view.
Figures 9-12 in Ultrastructural detection of lipids in the cephalic salivary glands of Apis mellifera and Scaptotrigona postica (Hymenoptera: Apidae) workers
Figures 9-12. Detection of lipid by imidazole osmium (IO) in cells from the cephalic salivary glands of Scaptotrigona postica. (9) Gland cell from newly emerged (NE) and (10) worker working in the brood comb area (CA) showing vesicles containing heterogeneous material (vh) in the apical region. Mitochondria (m) are abundant and variable in electron density and shape. Note the droplets (arrow), smooth endoplasmic reticulum cisterns (rel) and some mitochondria showing IO-positive lipid content inside (ml). (11-12) Glandular cells from forager (FO) workers. (11) Cubic gland cells showing large lipid droplet (lip). (12) Gland cells flattened with drop-shaped lipid vesicles (lip) and heterogeneous vesicles (vh). Note the large alveolar lumen (l) accumulating secretion (s). (c) Cuticle, (m) mitochondrion, (n) nucleus, (s) secretion. Scale bars: 9 = 1 µm, 10, 12 = 2 µm, 11 = 3 µm.
Figure 1 in The type material of Melipona postica Latreille, the type species of the stingless bee genus Scaptotrigona Moure (Hymenoptera, Apidae)
Figure 1 Photographs of manuscript lists compiled by Illiger (or perhaps Hoffmansegg) of taxon names based on the specimens received from shipments sent by Francisco Agostinho Gomes (documents filed under "Gomes, Franz August" in the Historische Bild- und Schriftgutsammlungen of the Museum für Naturkunde, in Berlin). A. Top section of front page of sheet 89; the heading reads "Gomes' first shipment from Spring 1801 contained" (in the original "Gomes erster Transport vom frühjahre 1801, enthielt"). B. Upper half of front page of sheet 90 containing a list of insects. The taxa considered as undescribed species are indicated by an asterisk and are followed by "N.", an abbreviation of "Nobis", meaning "to us" (as a new species). The right column gives names of bees, all placed in the genus Apis; the name "Apis postica" is highlighted.
Linked collectors and determiners for: Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part III: A revised infrageneric classification and new species.
Natural history specimen data linked to collectors and determiners held within, "Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part III: A revised infrageneric classification and new species". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/6baa6d44-f643-476a-8023-c3e12f5beb12">https://bionomia.net/dataset/6baa6d44-f643-476a-8023-c3e12f5beb12</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/6baa6d44-f643-476a-8023-c3e12f5beb12">https://gbif.org/dataset/6baa6d44-f643-476a-8023-c3e12f5beb12</a>. Formatted as a Frictionless Data package.
Figures 7–12 in A new species of Scaptotrigona from Belize (Hymenoptera: Apidae)
Figures 7–12. Male terminalia of Scaptotrigona (Astegotrigona) ascheri, new species. 7. Sternum V. 8. Sternum VI. 9. Sternum VII. 10. Sternum VIII. 11. Genital capsule, ventral view. 12. Genital capsule, dorsal view.
Figures 33–36 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part III: A revised infrageneric classification and new species
Figures 33–36. Workers of Scaptotrigona Moure. 33. Lateral habitus of Scaptotrigona (Gymnotrigona) nuda, new species. 34. Facial view of S. (G.) nuda. 35. Facial view of S. (G.) stipula, new species. 36. Lateral habitus of S. (G.) stipula.
Figures 3–6 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part III: A revised infrageneric classification and new species
Figures 3–6. Scapes of Scaptotrigona Moure. 3. Scaptotrigona (Dasytrigona) fulvicutis Moure. 4. S. (Gymnotrigona) guimaraesensis Laroca & Almeida. 5. S. (Scaptotrigona) magdalenae Engel. 6. S. (S.) gonzalezi Engel.
Figures 1–2 in Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part III: A revised infrageneric classification and new species
Figures 1–2. Dorsoapical views of metasomata of Scaptotrigona Moure. 1. Scaptotrigona (Scaptotrigona) ederi Engel. 2. S. (Sakagamilla) tubiba (Smith).
Data from: Queen execution, diploid males, and selection for and against polyandry in the Brazilian stingless bee Scaptotrigona depilis
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