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Asian Bullet Ant
''Diacamma'' is a genus of queenless ants belonging to the subfamily Ponerinae. It is distributed from India to Australia and contains about 24 species. Biology A queen caste does not exist in ''Diacamma''. Unique to this genus, all workers emerge from cocoons with a pair of tiny innervated thoracic appendages (''gemmae'') that are homologous with wings. Mutilation leads to a permanent change in lifetime trajectory, because workers lacking gemmae never mate. This is unlike other queenless ants where workers establish a dominance hierarchy to regulate reproduction. In ''Diacamma'' only one worker retains her gemmae in each colony, she is the gamergate (mated egglaying worker), and she bites off the gemmae of newly emerged workers. Mutilation causes the degeneration of the neuronal connections between the sensory hairs on the gemma's surface and the central nervous system, and this may explain the irreversibility of modifications in individual behaviour. Species *'' Diacamma assam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustav Mayr
Gustav L. Mayr (12 October 1830 – 14 July 1908) was an Austrian Entomology, entomologist and professor in Budapest and Vienna. He specialised in Hymenoptera, being particularly known for his studies of ants.1908. Obituary. Prof. Gustav Mayr. Entomological News 19:396 Bibliography In 1868, he was the first to describe the Argentine ant. He is credited with naming the harvesting ant species, ''Aphaenogaster treatae'', for naturalist Mary Treat, Mary Davis Treat, in honor of her research on the species. edite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diacamma Cupreum
''Diacamma'' is a genus of queenless ants belonging to the subfamily Ponerinae. It is distributed from India to Australia and contains about 24 species. Biology A queen caste does not exist in ''Diacamma''. Unique to this genus, all workers emerge from cocoons with a pair of tiny innervated thoracic appendages (''gemmae'') that are homologous with wings. Mutilation leads to a permanent change in lifetime trajectory, because workers lacking gemmae never mate. This is unlike other queenless ants where workers establish a dominance hierarchy to regulate reproduction. In ''Diacamma'' only one worker retains her gemmae in each colony, she is the gamergate (mated egglaying worker), and she bites off the gemmae of newly emerged workers. Mutilation causes the degeneration of the neuronal connections between the sensory hairs on the gemma's surface and the central nervous system, and this may explain the irreversibility of modifications in individual behaviour. Species *'' Diacamma assam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
