Eggs deposited in a cocoon after copulation.
- Cocoon of Silk of Bombyx mori.
Fabre has found that in the nests of some species of Osmia the young bee developed in the first-formed cell, if (as often happens) she emerges from her cocoon before the inmates of the later cells, will try to work her way round these or to bite a lateral hole through the bramble shoot; should she fail to do this, she will wait for the emergence of her sisters and not make her escape at the price of injury to them.
Before the introduction of machinery applicable to the spinning of silk waste, the refuse from cocoon reeling, and also from silk winding, which is now used in producing spun silk fabrics, hosiery, &c., was nearly all destroyed as being useless, with the exception of that which could be hand-combed and spun by means of the distaff and spinning wheel, a method which is still practised by some of the peasantry in India and other Eastern countries.
The worm itself, after the cocoon has been used, is eaten and is esteemed a delicacy.
The thread so ejected forms the silk of commerce, which as wound in the cocoon consists of filaments seriposited from two separate glands (discovered by an Italian naturalist named Filippi) containing a glutinous or resinous secretion which serves a double purpose, viz.
As a rule terrestrial spiders guard the cocoon in the permanent burrow, as in the trap-door spiders, or in the silken retreat which acts as a temporary nursery, as in the Salticidae.
It was a strange feeling to realize she had been in a cocoon for weeks.
It also uses the burrow as a safe retreat during moulting and guards its cocoon and young in its depths.
When the larva is fully mature, and ready to change into the pupa condition, it proceeds to spin its cocoon, in which operation it ejects from both glands simultaneously a continuous and reelable thread of 800 FIG.
When the waste contains any large percentage of worm or chrysalis, it is taken to a " cocoon beater," a machine which has a large revolving disk on which the silk is put, and while revolving slowly is beaten by a leather whip or flail, which loosens the silk and knocks out the wormy matter.
Out of a single cocoon emerge a varying number of young worms, the numbers being apparently characteristic of the species.
In this way it is believed that the sub-aqueous cocoon in which the pupal stage is passed becomes filled with air.
He had risen to fear, heartache, anxiety, bliss, pain and a hundred other feelings that made you beg to be able to bury your head beneath the covers and stay in the warm cocoon of sleep forever.
Many of the Hydrophilidae construct, for the protection of their eggs, a cocoon formed of a silky material derived from glands opening at the tip of the abdomen.
The second step in the evolution of spinning instincts was probably the making of a silken chamber for the reception of the cocoon itself and for the protection of the mother while guarding it and her newly-hatched young.
Other species of wandering habits carry the cocoon about with them, sometimes attached to the spinnerets, as in the Lycosidae, sometimes tucked under the thorax, as in the large tropical house-spider, Heteropoda regia, one of the Clubionidae.
- Chinese Tussur Moth, yearly and producing a soft flossy cocoon; the Chinese monthly worm, B.
The young emerge from the cocoon in the early spring, grow through the summer, and reach maturity in the early autumn.
The lower the temperature at which the worms are maintained the slower is their growth and development; but their health and vigour are increased, and the cocoon they spin is proportionately bigger.
From two to three weeks after the completion of the cocoon the enclosed insect is ready to escape; it moistens one end of its self-made prison, thereby enabling itself to push aside the fibres and make an opening by which the perfect moth comes forth.
In this connexion he established the very important practical conclusion that worms which contract the disease during their own life-cycle retain sufficient vitality to feed, develop and spin their cocoon, although the next generation is invariably infected and shows the disease in its most virulent and fatal form.
(2) The outside layers of the true cocoon are too coarse and uneven for reeling; and as the worm completes its task of spinning, the thread becomes finer and weaker, so both the extreme outside and inside layers are put aside as waste.
5) a flat paddleshaped needle of aluminium foil U is supported by a bifilar suspension consisting of two cocoon fibres.
In these spiders, too, the newly-hatched young shift for themselves as soon as they emerge from the cocoon; in others that guard the cocoon the young stay for a longer or shorter time under their mother's protection, those of the wandering Lycosidae climbing on her back to be carried about with her wherever she goes.
cf seed of 30 grammes producing 30,000 to 35,000 silkworms (30,000 may be depended upon to reach the cocoon stage) will give a harvest of 130 to 140 lb fresh cocoons and an ultimate yield of about 12 lb raw silk properly reeled.
The young leave the cocoon as fully formed earthworms in which, however, the genitalia are not fully developed.
SILK, a fibrous substance produced by many insects, principally in the form of a cocoon or covering within which the creatures are enclosed and protected during the period of their principal transformations.
If the attack comes on a short time before maturity, the worms are able to spin a cocoon of a feeble character, but worms with this disease never change into chrysalides, but always die in the cocoon before transformation can take place.
(4) During the process of reeling from the cocoon the silk often breaks; and both in finding a true and [[Table Iv]].-Silk Goods exported from the United Kingdom.
- Cocoon of Antheraea mylitta.
If an aperture for ingress and egress, for purposes of feeding, were left in the wall of such a chamber, there would arise in a rudimentary form what is known as the tubular nest or web; and the next important step was possibly the adoption of such a nest as a permanent abode for the spider., Some spiders, like the Drassidae and Salticidae, have not advanced beyond this stage in architectural industry; but next to the cocoon this simple tubular retreat - whether spun in a crevice or burrow or simply attached to the lower side of a stone - is the most constant feature to be observed in the spinning habits of spiders.
It is in this and related families that the greatest diversity in the colour and form of the cocoon is found.
- a, Pear Saw-fly (Eriocampoides limacina); b, larva without, and c, with its slimy protective coat; e, cocoon; f, larva before pupation; g, pupa, magnified 4 times; d, leaves with larvae, natural size.
The whole cocoon with its enclosed pupa weighs from 15 grains for the smaller races to about 50 grains for FIG.
As the outer flossy threads and the inner vests are not reelable, it is difficult to estimate the total length of thread produced by the silkworm, but the portion reeled varies in length and thickness, according to the condition and robustness of the cocoon, in some breeds giving a result as low as Soo metres, and in others 900 to 1200 metres.
Sir Thomas Wardle of Leek, in his handbook on silk published in 1887, showed by a series of measurements that the diameter of a single cocoon thread or bave varied from o oth to -nth part of an inch in diameter in the various species of Bombycides, whilst those of the Saturnides or wild species varied from - 0 oth to 3-0 0 th part of an inch.
- Cocoon of Antheraea pernyi.
Abandoning the long and somewhat heavy magnetic needles that had been used up to that date in galvanometers, he attached to the back of a very small mirror made of microscopic glass a fragment of magnetized watch-spring, and suspended the mirror and needle by means of a cocoon fibre in the centre of a coil of insulated wire.
The pupae in most of these pests are found in an earthen cocoon beneath the ground, or in some cases above ground (Lophyrus pini).
In April a single worm got oak-buds, on which it throve, and ultimately spun a cocoon whence a female moth issued, from which Guerin Meneville named and described the species.
There is a complex metamorphosis, with three larval stages, followed by a pupal stage enclosed in silken cocoon.
Cocoon is a body rejuvenating emollient that hydrates and nourishes skin from head to toe.
In the most approved modern filatures there is a separate cocoon boiler (cuiseuse), an oblong tank containing water boiled by steam heat.
About one-sixth of this weight is pure cocoon, and of that one-half is obtainable as reeled silk, the remainder consisting of surface floss or blaze and of hard gummy husk.
The mezankoorie moth of the Assamese, Antheraea mezankooria, yields a valuable cocoon, as does also the Atlas moth, Attacus atlas, which has an omnivorous larva found throughout India, Ceylon, Burmah, China and Java.
Bianca awoke in a cocoon.
For safety during hibernation and moulting, book-scorpions spin a small spherical cocoon.
The footless larvae are elongate, worm-like and very active; they feed upon almost any kind of waste animal matter, and when full-grown form a silken cocoon.
Eggs deposited in a cocoon.
Seasonal adaptation include spinning a cocoon, lying dormant or laying eggs for the winter period.
They can reproduce when 3 - 6 weeks old, making a cocoon in the soil from which live worms emerge.
The female is wingless and never leaves the cocoon where it lays all its eggs and dies.
Not the latest dance fad, but the process by which they spin a protective cocoon around themselves and develop into adults.
In the dark, snug in my own little cocoon, I can get lost for hours telling stories in my head.
A crib makes a cozy cocoon and is conveniently sized to sit beside your bed for easy night time feeds.
It's very cozy on board when the fire's going, a sort of safe cocoon!
cocoon coffin are not cremated, as the body will be cremated inside the original cardboard coffin.
The caterpillar will then spin itself a silk cocoon high up on the grass stem.
cocoon of silk about him leaving him barely able to breath.
A range of specially designed Rosco glass gobos have been used to create what is in effect a new bespoke line of Cocoon gobos.
Dimensions 7'3 " x 12 " £ 59.99 JRC Cocoon holdall - 12ft fully padded holdall.
To edge myself from this cocoon seems monumental, far less the daily trudge of washing and dressing.
pupate in a cocoon among leaf litter throughout the winter months.
She was sitting coyly, in the cocoon of a bright blue silk sari, head bowed and veiled.
The heat is enough to kill the silkworm inside but not to damage the silk in the cocoon.
spinning a cocoon, lying dormant or laying eggs for the winter period.
When fully grown, the maggot spins an oval silken cocoon within which it pupates (fig.
The cocoon varies greatly in size, shape and consistency according to the nature of the spider that makes it.
The females of some snare-spinning species, like the Pholcidae, carry it in their jaws; but in the case of the Argyopidae the females usually leave the cocoon to its fate as soon as it is constructed, sometimes rolling it in a leaf, sometimes attaching it by a stalk to a branch.
Development of larva and seed go on together, a few of the seeds serving as food for the insect, which when mature eats through the pericarp and drops to the ground, remaining dormant in its cocoon until the next season of flowering when it emerges as a moth.
Under the microscope cocoon silk presents the appearance (fig.
Pebrine manifests itself by dark spots in the skin of the larvae; the eggs do not hatch out, or hatch imperfectly; the worms are weak, stunted and unequal in growth, languid in movement, fastidious in feeding; many perish before coming to maturity; if they spin a cocoon it is soft and loose, and moths when developed are feeble and inactive.
sinensis, having several generations, and making a small cocoon; and the Madrasi worm of Bengal croesi), the Dassee or Desi worm of Bengal (B.
It yields a large compact cocoon (fig.
They then pupate in a cocoon among leaf litter throughout the winter months.
Pupa Lives in a very fragile cocoon below the soil and is said to produce a squeaking sound shortly before the adult emerges.
It actually is designed in three parts: cocoon swaddling wrap, positioning aid and elevating wedge.
At the end of this stage, the larva will spin a cocoon.
This is the period of time that the flea stays in the cocoon and develops into an adult flea.
A rather ungainly and innocent caterpillar wraps itself in a cocoon, much like an engaged couple wraps themselves in the flurry of wedding planning.
Most people spend about 1/3 of their lives sleeping, so it makes sense to spend a little extra making the bed a comfortable and relaxing cocoon.
If you're in the market for a large circular floor pillow, take a peek at the company's Comfy Cocoon.
A versatile wardrobe basic with sleek classic lines, the black tank style dress looks fabulous alone or paired with a stylish hand painted black floral cocoon jacket.
A loosely cut cardigan, the cocoon wrap creates a flowy look over an otherwise fitted outfit.
At Silhouettes, you can get a cocoon cabled cardigan that is lightweight and beautifully lacy.
You can get a Jessica London cocoon sweater at Avenue.
It is a ribbed sweater in a simple cut with huge cocoon sleeves.
There is a pima cotton cocoon sweater at Territory Ahead.
If you want the look of a cocoon wrap without the length, you can find a lovely one at Real Women Want.
The Dolman Cocoon Plus Shrug is like wearing a shawl that you don't have to continually readjust.
For something that's more like a proper cardigan with cocoon sleeves, Old Navy carries a classic Fair Isle pattern wrap cardigan, guaranteed to make every day or evening that much more cozy.
The popularity of the cocoon sweaters has meant that many places that carried them have run out and it's not known when - or if - they will get them again.
If you are a comparatively new knitter, a cocoon sweater or shrug is one of the easier things you can make as it requires so little shaping and fitting.
Cocoon Mini Slim is another pair considered to be one size fits all.
The Cocoon Pilot Large is another unisex style available in black/amber, black/copper, black/gray, and black/clear.
Cocoon Slim Line (Medium) is also unisex, plastic, and comes in black/amber, black/copper, black/gray, black/clear.
The Cocoon Stream Line (Small) comes in a few colors, one different than most of the fitovers: black/amber, black/copper, black/gray, and black/yellow.
Cocoon: According to their website, Cocoons clip-on eyewear is designed to have full UV protection, be scratch resistant, and is available in a range of sizes that fit 99% of prescipription glasses.
After spending approximately nine months in the cocoon of their mother's uterus, this new environment is shocking.
Once she begins to master an artform, it's like watching a butterfly emerge from a cocoon.
Explain the process of turning into a butterfly as it creates a cocoon for itself.
The family drama featured Deidre Hall (Days of Our Lives), Wilford Brimley (Cocoon), Shannen Doherty (Beverly Hills 90210, Charmed, 90210), Chad Allen (Dr.
Wilford Brimley is a well-known actor appearing in many feature films over the years including The Natural, Cocoon, The Firm and My Fellow Americans.
Over time, after trudging through the world, the little being lays itself to rest and encapsulates itself into a cocoon.
After time, the dragonfly enters a cocoon where they come out as a full winged dragonfly.
The caterpillar represents Jesus' life on earth, the cocoon is symbolic of Jesus' crucifixion and burial, and the butterfly represents His resurrection and ascension to Heaven.
Silk was originally created in China, as a result of harvesting the natural fiber that is produced by silkworms and other insect larvae when creating a cocoon.
It spins a cocoon, and from that cocoon bursts forth the most colorful of creatures; the butterfly.
In mythology, the butterfly is most often associated with rebirth, because the caterpillar emerges as a beautiful butterfly after a dormant time in the cocoon.
Description: Mothra was a gigantic moth who began in larval form, spun a cocoon and was reborn.
While still hidden within its cocoon, the military decided to strike with atomic cannons and the monster was created.
The young Mothra chased Godzilla, captured him with a cocoon web and forced him to go back to the sea where he came from.
The first act of the female after oviposition is to wrap her eggs in a casing of silk commonly called the cocoon.
The sexes then pair and perish soon after the female has constructed her cocoon.
C. Lister (Lord Masham) introduced the silk and velvet manufacture, having invented a process of manipulating silk waste, whereby what was previously treated as refuse is made into goods that will compete with those manufactured from the perfect cocoon.
In this water the cocoons are kept stirring by small brushes rotated by mechanical means, and as the silk softens the brushes gradually rise out of the water, bringing entangled with them the loose floss, and thereby revealing the main filament of each cocoon.
If conditions are right, the flea can emerge from the cocoon in three to five days.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.