The Natural History of Flies |
From inside the book
Results 1-3 of 50
Page 36
... spiracles at the tip of the abdomen , themselves a modification making it easier to breathe in watery places , compel the larva to reach the air periodically , even if only at long intervals . If this is prevented , then diffusion of ...
... spiracles at the tip of the abdomen , themselves a modification making it easier to breathe in watery places , compel the larva to reach the air periodically , even if only at long intervals . If this is prevented , then diffusion of ...
Page 38
... spiracles up to the surface to reach the air . They also have well - developed creeping welts , swel- lings or ... spiracles , one on the thorax and one on the tip of the abdo- men . It thus far agrees with theory , because the so ...
... spiracles up to the surface to reach the air . They also have well - developed creeping welts , swel- lings or ... spiracles , one on the thorax and one on the tip of the abdo- men . It thus far agrees with theory , because the so ...
Page 91
... spiracles . Anopheline larvae have the two spiracles on the eighth segment , and to keep these exposed to the air the whole body must lie horizontally , supported by tufts of ' float - hairs ' on each segment , like a drift - net or an ...
... spiracles . Anopheline larvae have the two spiracles on the eighth segment , and to keep these exposed to the air the whole body must lie horizontally , supported by tufts of ' float - hairs ' on each segment , like a drift - net or an ...
Contents
THE PATTERN OF FLIES 32 | 3 |
THE LIFEHISTORY OF FLIES | 12 |
CRANEFLIES | 29 |
Copyright | |
17 other sections not shown
Other editions - View all
Common terms and phrases
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