The Natural History of Flies |
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Page 210
... disease . The morsitans- group are responsible for nagana , a fatal disease of cattle and horses , and both they and the palpalis- group are responsible for outbreaks of human sleeping sickness . Compare again , the habits of the two ...
... disease . The morsitans- group are responsible for nagana , a fatal disease of cattle and horses , and both they and the palpalis- group are responsible for outbreaks of human sleeping sickness . Compare again , the habits of the two ...
Page 255
... disease , and in fact they were the earliest kinds of flies that were suspected of doing so . In the biblical ... disease . When contagious disease is rife the flies must certainly help to spread it more quickly . ' Swat that fly ' is ...
... disease , and in fact they were the earliest kinds of flies that were suspected of doing so . In the biblical ... disease . When contagious disease is rife the flies must certainly help to spread it more quickly . ' Swat that fly ' is ...
Page 256
Harold Oldroyd. disease , even as mechanical agents : whether in fact we can really say that the flies ' cause ' the disease . We have to give a qualified reply . The whole question of the relation between non - biting flies and disease ...
Harold Oldroyd. disease , even as mechanical agents : whether in fact we can really say that the flies ' cause ' the disease . We have to give a qualified reply . The whole question of the relation between non - biting flies and disease ...
Contents
THE PATTERN OF FLIES 3 | 3 |
THE LIFEHISTORY OF FLIES | 12 |
Part | 27 |
Copyright | |
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Common terms and phrases
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