The Natural History of Flies |
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Page 123
... robber - fly would take wing and fly in a straight line along the edge of the path , and then settle again . If I stayed in one place it would return periodically in its ... robber - flies and their victims are often seen 123 ROBBER - FLIES.
... robber - fly would take wing and fly in a straight line along the edge of the path , and then settle again . If I stayed in one place it would return periodically in its ... robber - flies and their victims are often seen 123 ROBBER - FLIES.
Page 124
... robber - flies specialize in certain kinds of victim . Certain tendencies can be detected , but must not be ex- aggerated . For instance , robber - flies of the distinct genus Dioctria of the North Temperate Zone show a preference for ...
... robber - flies specialize in certain kinds of victim . Certain tendencies can be detected , but must not be ex- aggerated . For instance , robber - flies of the distinct genus Dioctria of the North Temperate Zone show a preference for ...
Page 127
... flies possessing them are nearly related . If that is so , the method and site of egg - laying must also have been an ancestral one , and so these flies must be one group of earth - breeding robber - flies . Moreover , a very similar ...
... flies possessing them are nearly related . If that is so , the method and site of egg - laying must also have been an ancestral one , and so these flies must be one group of earth - breeding robber - flies . Moreover , a very similar ...
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