The Natural History of Flies |
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Page 111
... interesting speculation is to wonder which adapta- tion came first , and required the other in compensation . An equally interesting development in the opposite direction has taken place in several genera of Rhagionidae , which have ...
... interesting speculation is to wonder which adapta- tion came first , and required the other in compensation . An equally interesting development in the opposite direction has taken place in several genera of Rhagionidae , which have ...
Page 179
... interesting suggestion that in very cold climates adult flies are not able to warm up enough to fly , and that there is no selective advantage to favour the posses- sion of unusable wings . Professor O. W. Richards has made a speciality ...
... interesting suggestion that in very cold climates adult flies are not able to warm up enough to fly , and that there is no selective advantage to favour the posses- sion of unusable wings . Professor O. W. Richards has made a speciality ...
Page 197
... interesting possibility that the attraction of the adult flies may have been the first step that led the larvae to take up this substance as food . Adult Trypetidae , like those of Drosophilidae we shall see pres- ently , are strongly ...
... interesting possibility that the attraction of the adult flies may have been the first step that led the larvae to take up this substance as food . Adult Trypetidae , like those of Drosophilidae we shall see pres- ently , are strongly ...
Contents
THE PATTERN OF FLIES 3 | 3 |
THE LIFEHISTORY OF FLIES | 12 |
Part | 27 |
Copyright | |
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abdomen able actively adapted adult adult flies African already animals appearance aquatic areas attack attracted become birds biting blood body breed called carnivorous carried cause Chapter close common countries crane-flies developed difficult disease effect eggs emerge evolution evolved example eyes fact feeding female Figure flies flight flowers genera genus give gnats habit habitats head horse-flies host human insects interesting known larvae later leaves legs less live look males mass materials mating mentioned midges mosquitoes move natural nearly nests occur organic parasites particularly perhaps plants present prey primitive probably proboscis pupae recent rest robber-flies round seems seen similar skin soil sometimes species spiracles stage structure suck suggests surface swarms tion tissues tropical true usually vegetation wings