The Shipley Collection of Scientific Papers, Том 1641833 |
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Страница 264
... body walls of the lice . The outside wound heals over in a short time , leaving the egg tightly sealed within the body ready to hatch . As soon as the egg is hatched the small , legless larva begins to feed upon the tissues of the aphid ...
... body walls of the lice . The outside wound heals over in a short time , leaving the egg tightly sealed within the body ready to hatch . As soon as the egg is hatched the small , legless larva begins to feed upon the tissues of the aphid ...
Страница 17
... body with brownish - black eyes and brown jaws . By the end of twenty - four hours , the head has become sepia - brown in colour and the body assumes a greenish appear- ance owing to the presence of food in the intestine . A few hours ...
... body with brownish - black eyes and brown jaws . By the end of twenty - four hours , the head has become sepia - brown in colour and the body assumes a greenish appear- ance owing to the presence of food in the intestine . A few hours ...
Страница 109
... body shining through the transparent integument . The fat - body cells are much vacuolated , and the cell boundaries are only to be distinguished with considerable difficulty . Their nuclei are for the most part small and inconspicuous ...
... body shining through the transparent integument . The fat - body cells are much vacuolated , and the cell boundaries are only to be distinguished with considerable difficulty . Their nuclei are for the most part small and inconspicuous ...
Чести термини и фразе
abdomen abdominal segment adult antennæ ants aphid Aphis Appearance apple arsenic attacked body breeding brood buds California caterpillars cells cent citrus cocoons colonies color Commissioner cornicles cyanide damage deposited destructive Distribution dorsal early eggs Entomologist erichsonii Essig Family feed femora flies foliage Food Plants fruit fumigation gallons genus green hatch head hibernate History horticultural host inch long infested instabilis ladybird beetle larch Larch Sawfly large numbers larva larvæ lateral leaves legs Linn louse maggots male mealy bug mermithergates mites mosquitoes moth muscles Natural Enemies nest numbers observations Orasema orchards ovipositor P. C. Jr parasites Paris green pest Pheidole plant lice Plate Polyederkrankheit pound pseudogynes pupa pupæ pupal pupate quarantine Raupen sawfly scale insects southern species specimens spiracles spray spring stage summer surface thorax thrips Throughout the entire trees usually ventral winged female winter workers yellow young