| 单词 | pupal |
| 例句 | Each may consume several hundred aphids before the ceaseless turning of the cycle of its life brings the time when it will spin a white silken cocoon in which to pass the pupal stage. Silent Spring 1962-09-27T00:00:00Z Outside the bug’s body, the wires linked up with a small circuit board, which the researchers left resting loosely atop the pupal case. Science-fiction turns real: Genetically engineering animals for war 2013-03-23T19:00:00Z After lying low in a larval and pupal state for one to two years, the freshly winged males rise from the forest floor and twinkle in concert. In a limited engagement, the fireflies blink in sync in the Great Smoky Mountains 2017-06-06T04:00:00Z These kinds of pupal surgeries have much to recommend them, the researchers say. Science-fiction turns real: Genetically engineering animals for war 2013-03-23T19:00:00Z This has consequences for birds that cannot eat caterpillars that have entered the pupal stage. Migratory birds can be taught to adjust to climate change 2023-09-22T04:00:00Z The researchers also detected pupal ‘milk’ in species from each of the five biggest ant subfamilies, suggesting that it could play a part in the evolution of ant social structures. Ants Can Produce Milk for Their Young (and Old) 2022-12-02T05:00:00Z If adult ants don’t lick off the pupal fluid, the pupae drown or die of fungal infections. Ant Milk: It Does a Colony Good 2022-11-30T05:00:00Z Sitting on a leaf were two tiny moths, with the pupal skins they had just emerged from still poking out of the leaf mines. Those weird marks on your leaves? Here’s how to decipher them 2022-11-02T04:00:00Z White-footed mice are a predator of the insect in its brief summer pupal stage. What to do if you see a spongy moth (or its very hungry caterpillars) 2022-10-13T04:00:00Z Other removals seem more focused on keeping the game accessible: taking out the British spelling of “fibre” and removing “pupal,” presumably because it’s too close to “pupil.” The New York Times has changed Wordle’s solutions 2022-02-15T05:00:00Z The team now wants to study effects that pupal secretions might have on the adults and larvae in terms of behaviour and physiology. Ants Can Produce Milk for Their Young (and Old) 2022-12-02T05:00:00Z For some, it was the pupal stage before they became punks. Teenage Wildlife: inside the song about Bowie's midlife crisis 2019-02-19T05:00:00Z The maggots began their pupal phase in hopes of leaving as flies. Before These Parasitic Wasps Finished Devouring Live Flies, They Became Fossils 2018-08-28T04:00:00Z The larva stores its own waste to construct a pupal chamber, inside which it transitions into a hard-shelled beetle. Watch a Sausage-Size Insect Transform From Larva to Beetle 2018-05-11T04:00:00Z Baby bugs without a pupal stage, like leaf hoppers and praying mantises are prettily called nymphs, also a name for mythical spirits in nature. Why Do We Call Baby Deer Fawns? 2017-10-14T04:00:00Z Adult flies also emerged from the pupal stage eight days later than controls. The Self-Styled Healthy May Get Fewer Colds 2016-02-01T05:00:00Z Researchers said on Tuesday that increasing temperatures were enabling Arctic mosquitoes to grow more quickly and emerge sooner from their pupal stage, greatly expanding their numbers and menacing the caribou whose blood they eat. In warming Arctic, mosquitoes may live long and prosper 2015-09-15T04:00:00Z The team found that of the 11 larvae that reached the pupal stage, 10 caused their host spiders to spin cocoon webs that appeared to be modifications of their resting webs. Wasps force zombie spiders to weave ‘cocoon’ webs 2015-08-05T04:00:00Z Honeybees emerge from the pupal stage with a clean hindgut and, over their first three days, acquire the right microbes through interactions within the hive. Microbiome: The puzzle in a bee's gut : Nature : Nature Publishing Group 2015-05-19T04:00:00Z Adult beetles will not emerge from the trees until spring, and beetles in the pupal stage will stay put, feeding on the trees, he said. Long Island Confronts Destructive Southern Pine Beetles 2014-10-28T04:00:00Z However, worm late embryonic stages also match fly pupal stages, suggesting a shared expression program between embryogenesis and metamorphosis. Comparative analysis of the transcriptome across distant species : Nature : Nature Publishing Group 2014-08-26T04:00:00Z Tissues were dissected from Oregon R larval, pupal and adult staged animals synchronized with appropriate age indicators. Diversity and dynamics of the Drosophila transcriptome : Nature : Nature Publishing Group 2014-03-15T04:00:00Z A gene named broad is essential for the pupal stage of complete metamorphosis. How Did Insect Metamorphosis Evolve? 2012-08-10T14:15:57.377Z When you emerge from your pupal case, it is dark, but not pitch black, and high above you, you see the faint glow of a starry sky. The Glowing Spider-Worms of New Zealand 2012-05-21T20:45:03.400Z Young animals always unlike parents, the wing-rudiments developing beneath the larval cuticle and only appearing in a penultimate pupal instar, which takes no food and is usually passive. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z The pupal duration could not be determined closer than ten days, and this may be the usual length of time required for this stage. Journal of Entomology and Zoology Volume 11, Number 4, December 1919 2011-10-07T02:00:22.027Z This insect is remarkable for the long period of its pupal existence, which is subterranean, and during which it feeds upon the juices of roots. American Pomology Apples 2011-10-03T02:00:29.477Z Swammerdam, however, showed the presence under the larval cuticle of the pupal structures. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6 "English Language" to "Epsom Salts" 2011-02-19T03:00:59.807Z A, Winged female; B, winged male; C, ovigerous wingless female; D, viviparous wingless female from plum; E, pupal stage. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z Such insects as dragon-flies and may-flies, whose young, though unlike the parent, develop into the adult form without a resting pupal stage are said to undergo an “incomplete transformation” or to be hemimetabolic. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z But the extra provision for the safety of the former is not so necessary in the case of the latter, as it never spends more than two or three weeks in the pupal state. Butterflies and Moths (British) This trap should be examined fortnightly, as the moths hatch out during hot weather in a shorter time than later in the season, when some remain over winter in the pupal state. American Pomology Apples 2011-10-03T02:00:29.477Z Like all insects with incomplete metamorphoses, there is no quiescent pupal condition, no sharp line of demarcation between the larval and so-called “nymph” or penultimate stage. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" These insects pass the pupal stage in the ground, and reach the boughs to lay their eggs by crawling up the trunks of the trees. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z Pupa.—In the metabolic Hexapoda the resting pupal instar shows externally the wings and other characteristic imaginal organs which have been gradually elaborated beneath the larval cuticle. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z And as insects even in the pupal stage have a number of enemies and dangers to contend with, it is advisable to start your search for them as soon as possible after they have changed. Butterflies and Moths (British) The pupal stage is passed in an earthen cell, just beneath the surface of the ground. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" They hatch in about 24 hours, and the larv� or maggots in four or five days develop to the pupal stage, which lasts a week or 10 days. Special Report on Diseases of Cattle To wait for the pupal stage of the root-worm delays the work until numerous small roots start which would be destroyed by the horse-hoe. Manual of American Grape-Growing The head and thorax are closely united and a close inspection will reveal the head, antennæ, wings and legs of the adult mosquito folded away beneath the pupal skin. Insects and Diseases A Popular Account of the Way in Which Insects may Spread or Cause some of our Common Diseases But if their removal becomes a necessity, let it be carried out as carefully as possible, and not until the change to the pupal stage is known to be complete. Butterflies and Moths (British) The wasps are said to leave the larval or pupal Metoecus unmolested, but they are hostile to the developed beetles, which hasten to leave the nest as soon as possible. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" The mature flies then emerge from the pupal envelope and are soon ready for egg laying. Special Report on Diseases of Cattle The insect hibernates in the pupal state in the ground where it may be distinguished as a large cylindrical object of dark brown color. Manual of American Grape-Growing The pupal stage lasts from two to five or six days or more. Insects and Diseases A Popular Account of the Way in Which Insects may Spread or Cause some of our Common Diseases They resume their feeding in April, and change to the pupal state about the end of May. Butterflies and Moths (British) As regards growth after hatching, all beetles undergo a “complete” metamorphosis, the wing-rudiments developing beneath the cuticle throughout the larval stages, and a resting pupal stage intervening between the last larval instar1 and the imago. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" From the pupal stage the mature fly emerges. Special Report on Diseases of Cattle The moth passes the winter in the pupal state on leaves underneath the vine, emerging about the time grapes are blossoming. Manual of American Grape-Growing When the adult is ready to issue the pupal skin splits along the back and the mosquito gradually and slowly issues. Insects and Diseases A Popular Account of the Way in Which Insects may Spread or Cause some of our Common Diseases Work of Round-headed Borers, Callidium antennatum, in White Pine Bucket Staves from New Hampshire. a, where egg was deposited in bark; b, larval mine; c, pupal cell; d, exit in bark; e, adult. Seasoning of Wood In this way it is believed that the sub-aqueous cocoon in which the pupal stage is passed becomes filled with air. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" This insect hibernates in the pupal stage in the ground. Northern Nut Growers Association Report of the Proceedings at the 43rd Annual Meeting Rockport, Indiana, August 25, 26 and 27, 1952 So slight are the differences between the different stages that it is difficult to say where the larval stage ends and the pupa begins, so also where the pupal state ends and the imago begins. Our Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and Houses There are no striking characters or habits in the larval or pupal stages that would enable us to distinguish without careful examination this species from other similar forms with which it might be associated. Insects and Diseases A Popular Account of the Way in Which Insects may Spread or Cause some of our Common Diseases I will open some more; here is one in its pupal condition. Country Walks of a Naturalist with His Children Watch the miller escape from the pupal case and describe it. An Elementary Study of Insects Stage: refers to the period of development; e.g. larval, pupal, etc. Explanation of Terms Used in Entomology A succeeding stage of this mite, which may be called the pupal, is considerably smaller than the larva and looks somewhat like the adult, the body having become shorter and broader. Our Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and Houses Before passing into the pupal stage, the larva partially closes the orifice of the tube with silk or pieces of stone loosely spun together and pervious to water. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" In no other order that we have studied do the insects go into the pupal state to undergo the final transformation. The Insect Folk In the pupal stage it is often protected with spines and is able to lift the front end of the body up and down when disturbed, producing a light tapping sound. An Elementary Study of Insects Cyclorrhapha: that section of Diptera in which the adult escapes from the hardened pupal case by pushing off a lid or covering: see orthorrhapha. Explanation of Terms Used in Entomology The mere breaking of the pupal cell, leaving the earth in contact with the body of the pupa, is fatal to many. Trees, Fruits and Flowers of Minnesota, 1916 Embracing the Transactions of the Minnesota State Horticultural Society,Volume 44, from December 1, 1915, to December 1, 1916, Including the Twelve Numbers of "The Minnesota Horticulturist" for 1916 In all Ametabola and Hemimetabola these are visible externally long before the penultimate instar has been reached; in the Holometabola they are not seen until the pupal stage. The Life-Story of Insects He now slowly takes on the form of a true mosquito within his pupal skin or shell. How To Write Special Feature Articles A Handbook for Reporters, Correspondents and Free-Lance Writers Who Desire to Contribute to Popular Magazines and Magazine Sections of Newspapers Just before frost the last caterpillars search for protected places where they pass to the pupal or resting stage for the winter. An Elementary Study of Insects Dehiscence: the splitting of the pupal integument in the emergence of the adult in Lepidoptera. Explanation of Terms Used in Entomology Observations show that the insect is in the pupal condition in the ground in from fifty to sixty-five days after the falling of the blossoms of such fruit as apples and plums. Trees, Fruits and Flowers of Minnesota, 1916 Embracing the Transactions of the Minnesota State Horticultural Society,Volume 44, from December 1, 1915, to December 1, 1916, Including the Twelve Numbers of "The Minnesota Horticulturist" for 1916 The pupal cuticle has to be shed for the emergence of the imago, but the pupa is already a somewhat reduced model of the final instar, with abbreviated wings and doubled-up legs. The Life-Story of Insects Other larv� do not spin a cocoon, but spend the pupal state naked. Scientific American Supplement No. 822, October 3, 1891 These insects belong among the orthoptera—an order including species whose transformations are less complete than in other groups, and whose larval and pupal forms are very active, and closely resemble the imago. Scientific American Supplement, No. 385, May 19, 1883 Holometabolous: having a complete transformation; with egg, larval, pupal and adult stages distinctly separated. Explanation of Terms Used in Entomology On the 8th June about fifty per cent. of the larvae had cast a skin and assumed the pupal state in their little cells: the color yellowish-brown, darkening to gray in the more advanced insect. Scientific American Supplement, No. 363, December 16, 1882 With the beautifully adapted transfer of the functional spiracles, their position is appropriately arranged for the gnat's emergence at the surface, and the empty pupal cuticle floats serving the insect as a raft. The Life-Story of Insects Throughout the great class of insects the males almost always are the first to emerge from the pupal state, so that they generally abound for a time before any females can be seen. The Descent of Man Most of our best authorities are now convinced that the various larval and pupal stages of insects have thus been acquired through adaptation, and not through inheritance from some ancient form. The Origin of Species by means of Natural Selection, 6th Edition Nymph: the larval stage of insects with incomplete metamorphosis: applies also to their pupal stage, and sometimes used as = pupa. Explanation of Terms Used in Entomology The pupal state thus seems to be of short duration. Scientific American Supplement, No. 363, December 16, 1882 The walls of the fine air-tubes that pass into the gills are specially strengthened, but just below the pupal cuticle these walls are exceedingly thin and delicate. The Life-Story of Insects Pupivorous: feeding upon pupa: especially applied to those Hymenoptera that are parasitic upon insects in the pupal stage. Explanation of Terms Used in Entomology Sub-nymph: applied to the resting or pupal stage of female Coccidae; also to a supernumerary stage before the formation of the pupa, and thus = pseudo-pupa. Explanation of Terms Used in Entomology Galeotheca: that part of the pupal case that covers the gales. Explanation of Terms Used in Entomology Not until spring is the pupal form assumed, and then it quickly passes into the imaginal state. The Life-Story of Insects |
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