Summary
In the compound eyes of flies, a morphological duality of the retinal structure has been found. The retinal patterns based on this property and their possible evolutionary trends are described.
Zusammenfassung
In den Komplexaugen der Fliegen wurde eine morphologische Dualität der retinalen Struktur gefunden: Die Retina besteht aus Ommatidien zweier Typen, die jeweils einen geschlossenen Populationskreis bilden. Die Morphologie der hierdurch hervorgerufenen retinalen Muster und die mögliche evolutionäre Tendenz ihrer Verbreitung in den Brachycera-Orthorrhapha und den Cyclorrhapha wurden beschrieben.
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Conopidae are another family that ... have followed a divergent line of evolution, leading them away from close relationships with any other living flies ... We may take advantage of the fact that this is a work of natural history, and consider them alongside the hover-flies, rather than in their true systematic position (ref.7, p. 168).
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I thank ProfessorsH. Oldroyd andG. Schneider for critically reading the manuscript.
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Wada, S. Morphological duality of the retinal pattern in flies. Experientia 31, 921–923 (1975). https://doi.org/10.1007/BF02358853
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DOI: https://doi.org/10.1007/BF02358853