The Shipley Collection of Scientific Papers, Том 1641833 |
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Страница 44
... Appearance . - Light green or yellow , covered with long white flocculence . The winged forms have dark head and thorax . Quite a large form being 3.3 mm . in length . Life History . Appears early in April on the lower leaves and at the ...
... Appearance . - Light green or yellow , covered with long white flocculence . The winged forms have dark head and thorax . Quite a large form being 3.3 mm . in length . Life History . Appears early in April on the lower leaves and at the ...
Страница 65
... Appearance . - A large aphid , being green and pink in color . The apterous forms have dark cornicles and the joints of the legs and antennæ dusky , while in addition to these the thorax , entire antennæ and blotches on the sides of the ...
... Appearance . - A large aphid , being green and pink in color . The apterous forms have dark cornicles and the joints of the legs and antennæ dusky , while in addition to these the thorax , entire antennæ and blotches on the sides of the ...
Страница 274
... Appearance . - A small dark parasite , slightly over .05 mm . in length . The general color is dark yellowish - brown with light yellow head , dusky legs and antennæ and hyaline wings . FIG . 272. - Aphycus immaculatus How . ( After ...
... Appearance . - A small dark parasite , slightly over .05 mm . in length . The general color is dark yellowish - brown with light yellow head , dusky legs and antennæ and hyaline wings . FIG . 272. - Aphycus immaculatus How . ( After ...
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