The Shipley Collection of Scientific Papers, Том 1641833 |
Из књиге
Резултати 1-3 од 68
Страница
... species attracting most atten- tion as pests are Sciara multiseta Felt and Sciara agraria Felt . Both species are , like the other mushroom gnats , rapid and prolific breed- ers , especially during warm weather , frequently occurring in ...
... species attracting most atten- tion as pests are Sciara multiseta Felt and Sciara agraria Felt . Both species are , like the other mushroom gnats , rapid and prolific breed- ers , especially during warm weather , frequently occurring in ...
Страница 42
... species of the genus . Wasmann recognizes three additional species from North America : montana Casey1 from California , caseyi Wasm . from Colorado , and sharpi Wasm . of Mexico . Many years ago Walker described from Vancouver an ...
... species of the genus . Wasmann recognizes three additional species from North America : montana Casey1 from California , caseyi Wasm . from Colorado , and sharpi Wasm . of Mexico . Many years ago Walker described from Vancouver an ...
Страница 87
... species of Formica ( F. fusca ) , the workers of which are willing to perform the same function as those of her own species in rearing her brood . In F. rufa and exsectoides there is nothing in the stature or struc- ture of the queen to ...
... species of Formica ( F. fusca ) , the workers of which are willing to perform the same function as those of her own species in rearing her brood . In F. rufa and exsectoides there is nothing in the stature or struc- ture of the queen to ...
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