Results 141 to 150 of about 2,091 (171)
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Sex Determination in Bees (Apinae)
Journal of Apicultural Research, 1967SUMMARYInbred lines of 7 species of social bees were studied, and checked for the presence of diploid male larvae: 7 lines of Apis mellifera, and 15 of Meliponini, representing 6 species. In 3 lines of Apis mellifera showing 50% viability, the non-surviving larvae were males, but diploid males could have some female-like characters. None of the species
Warwick E Kerr
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Comparative Anatomy and Histology of the Alimentary Canal of Adult Apinae
Journal of Apicultural Research, 1967SUMMARYThe alimentary canals of workers of 15 species of social bees, including Apis, Bombus and four genera of meliponids, were compared. The anatomical differences were greater than the histological ones, and were most noticeable in the most specialized parts of the alimentary canal. In some respects the meliponids formed a group distinct from Bombus
Carminda da Cruz-Landim
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Neotropical Meliponini: the genus Celetrigona Moure (Hymenoptera: Apidae, Apinae)
Zootaxa, 2009Three new species of Celetrigona are described: C. euclydiana sp. nov., from Acre, Brazil, C. hirsuticornis sp. nov., from Rondônia, Brazil and C. manauara sp. nov., from the northern Amazon. Additional geographic records are provided for C. longicornis (Friese, 1903), the only previously known species; its nest and the male are described and ...
Camargo, João M. F. +1 more
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Ultrastructural characterization of spermatozoa in euglossine bees (Hymenoptera, Apidae, Apinae)
Insectes Sociaux, 2005Euglossine spermatozoa are the longest described to date for the Hymenoptera. This cell includes a head and a flagellar region. In transverse sections, the acrosome is circular at the tip but has an oval contour along most of its length. The perforatorium penetrates into a deep cavity in the nuclear tip.
U. Zama +4 more
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Cladistics, 2007
AbstractThis study aimed to test the various competing hypotheses regarding the relationships among the four tribes of corbiculate apine bees (Euglossini “orchid bees”, Bombini “bumble bees”, Meliponini “stingless bees”, and Apini “honey bees”) with a completely new set of previously unstudied morphological characters derived from the sting apparatus ...
Sophie, Cardinal, Laurence, Packer
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AbstractThis study aimed to test the various competing hypotheses regarding the relationships among the four tribes of corbiculate apine bees (Euglossini “orchid bees”, Bombini “bumble bees”, Meliponini “stingless bees”, and Apini “honey bees”) with a completely new set of previously unstudied morphological characters derived from the sting apparatus ...
Sophie, Cardinal, Laurence, Packer
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Neotropical Meliponini: the genus Leurotrigona Moure two new species (Hymenoptera: Apidae, Apinae)
Zootaxa, 2009Two new species of Leurotrigona are described: L. crispula sp. nov., from the Magdalena River valley, Antioquia, Colombia, and L. gracilis sp. nov., from western Amazon. Additional geographic records and illustrations are provided for L. muelleri (Friese) and L.
Pedro, Silvia R. M. +1 more
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Molecular Phylogenetics and Evolution, 2004
Orchid bees (Euglossini) are spectacular long-tongued Neotropical bees important in the pollination of Neotropical long-corolla flowers, particularly some orchids. Besides remarkably long tongues, males in particular exhibit other flower-related adaptations, including setal brushes on the foretarsi used for rasping the petals of orchids while ...
Michel-Salzat, Alice +2 more
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Orchid bees (Euglossini) are spectacular long-tongued Neotropical bees important in the pollination of Neotropical long-corolla flowers, particularly some orchids. Besides remarkably long tongues, males in particular exhibit other flower-related adaptations, including setal brushes on the foretarsi used for rasping the petals of orchids while ...
Michel-Salzat, Alice +2 more
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Cladistics, 2002
The phylogenetic relationships among the four tribes of corbiculate bees (Euglossini, Bombini, Meliponini, and Apini) are controversial. There is substantial incongruence between morphological and molecular data, and the single origin of eusociality is questionable.
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The phylogenetic relationships among the four tribes of corbiculate bees (Euglossini, Bombini, Meliponini, and Apini) are controversial. There is substantial incongruence between morphological and molecular data, and the single origin of eusociality is questionable.
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First record of emergency queen rearing in stingless bees (Hymenoptera, Apinae, Meliponini)
Insectes Sociaux, 2002This paper presents the first record of emergency queen rearing in stingless bees. The main steps of the event in Trigona (Frieseomelitta) varia (Lepeletier) queenless colonies are: 1) construction and provisioning of an auxiliary cell in close contact to that housing a late feeding-stage larva; 2) construction of a connection between the two cells; 3)
C.D. Faustino +3 more
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Australian Journal of Agricultural Research, 2004
We evaluated the contribution of the stingless bee Tetragonisca angustula as a strawberry pollinator using primary flowers of the ‘Oso Grande’ cultivar. We applied 4 pollination treatments: open-pollination in the field, T. angustula pollination inside a greenhouse, and spontaneous self-pollination in the field and greenhouse.
Kátia Sampaio Malagodi-Braga +1 more
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We evaluated the contribution of the stingless bee Tetragonisca angustula as a strawberry pollinator using primary flowers of the ‘Oso Grande’ cultivar. We applied 4 pollination treatments: open-pollination in the field, T. angustula pollination inside a greenhouse, and spontaneous self-pollination in the field and greenhouse.
Kátia Sampaio Malagodi-Braga +1 more
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