The Natural History of Flies |
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Page 75
... swarms occur on the other lakes , and their empty pupal skins may form a floating island . The North American Mochlonyx cinctipes swarms in clearings in the woods when the light intensity has fallen to a definite level , esti- mated at ...
... swarms occur on the other lakes , and their empty pupal skins may form a floating island . The North American Mochlonyx cinctipes swarms in clearings in the woods when the light intensity has fallen to a definite level , esti- mated at ...
Page 264
... swarms of non - biting midges . In the open , with a breeze of the right strength , the swarms form upon any convenient marker , even a person walk- ing along , and will formate on him just as faithfully as on a fixed marker . If two ...
... swarms of non - biting midges . In the open , with a breeze of the right strength , the swarms form upon any convenient marker , even a person walk- ing along , and will formate on him just as faithfully as on a fixed marker . If two ...
Page 266
... swarm ' Haskell [ 113 ] . It will be noted that we are assuming here , as we have assumed often through this book , that swarms exist primarily for mating pur- poses . The common picture is that the males meet in a swarm which is ...
... swarm ' Haskell [ 113 ] . It will be noted that we are assuming here , as we have assumed often through this book , that swarms exist primarily for mating pur- poses . The common picture is that the males meet in a swarm which is ...
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