The Natural History of Flies |
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Page 66
... effect of their bites in such large numbers . The combined effect of loss of blood and loss of feeding - time disturbs herds so much that it may often lead to the weakening and death of grazing animals . An extreme instance is the oft ...
... effect of their bites in such large numbers . The combined effect of loss of blood and loss of feeding - time disturbs herds so much that it may often lead to the weakening and death of grazing animals . An extreme instance is the oft ...
Page 86
... effect of the egg - stage is seen . If the eggs had to be laid directly in water the mosquito would have to carry them round until just the right moment , and after a storm the multitude of small pools could not be efficiently exploited ...
... effect of the egg - stage is seen . If the eggs had to be laid directly in water the mosquito would have to carry them round until just the right moment , and after a storm the multitude of small pools could not be efficiently exploited ...
Page 257
... effect on the pro- gress of the epidemic . The above remarks , of course , apply to paralytic polio . It is a curious aspect of this dreaded disease that most adults seem to have acquired immunity to it , hence the name ' infantile ...
... effect on the pro- gress of the epidemic . The above remarks , of course , apply to paralytic polio . It is a curious aspect of this dreaded disease that most adults seem to have acquired immunity to it , hence the name ' infantile ...
Contents
THE PATTERN OF FLIES 32 | 3 |
THE LIFEHISTORY OF FLIES | 12 |
CRANEFLIES | 29 |
Copyright | |
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abdomen acalyptrate actively adapted adult flies African Agromyzidae animals appearance aquatic larvae Asilidae attack bats bee-flies bees behaviour biological birds biting black-flies blood bloodsucking blow-flies body Bombyliidae Brachycera breed Calliphora carnivorous Cecidomyiidae Chapter Chironomidae Chloropidae Chrysops crane-flies Cyclorrhapha decaying developed Diptera disease Dolichopodidae dung egg-laying eggs emerge Empididae Empids Ephydridae evolution evolutionary evolved eyes families of flies female flight flowers genera genus gnats habit habitats head Hippoboscidae horse-flies host hover-flies hovering insects known large numbers larvae larvae feed larvae live legs Lucilia maggot males mammals mandibles mating midges mosquitoes mouthparts Muscidae Mycetophilidae Nematocera nests non-biting Nycteribiidae organic oxygen parasites perhaps Phorids piercing plants prey primitive proboscis pupae pupal pupate robber-flies seen Simulium skin soil sometimes species spiracles stage Stratiomyidae Streblidae sub-family suck surface swarms Syrphid Syrphidae Tabanidae Tabanus terrestrial thorax tion tissues tropical Trypetidae tsetse-flies vegetation wasps wings