The Shipley Collection of Scientific Papers, Том 1641833 |
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Страница 17
... dorsal surface of the larva is still green and the ventral surface a pale green . When the larva has undergone the second ecdysis the dorsal surface assumes the normal bluish - grey or glaucous appearance , the underside of the body ...
... dorsal surface of the larva is still green and the ventral surface a pale green . When the larva has undergone the second ecdysis the dorsal surface assumes the normal bluish - grey or glaucous appearance , the underside of the body ...
Страница 105
... dorsal bands of the adductor while the other two take their origin near to the ventral bundle of the latter ... dorsal and a ventral series . The dorsal series , or longitudinal tergal muscles , lie a short distance beneath the ...
... dorsal bands of the adductor while the other two take their origin near to the ventral bundle of the latter ... dorsal and a ventral series . The dorsal series , or longitudinal tergal muscles , lie a short distance beneath the ...
Страница 119
... dorsal prothoracic buds have become the com- pletely formed respiratory trumpets ; those of the mesothorax are highly complex organs ( Fig . 25 ) , and are much folded and plicated . They already exhibit a wing - like character , the ...
... dorsal prothoracic buds have become the com- pletely formed respiratory trumpets ; those of the mesothorax are highly complex organs ( Fig . 25 ) , and are much folded and plicated . They already exhibit a wing - like character , the ...
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