Reproduction
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The female ladybug will lay its eggs in a colonies of aphids, on the bottom of a leaf. The larvae will hatch out after 4 days. The larva will eat 200 aphids and in 4 weeks the larva will attach its body to a leaf and will turn into a pupa. After 1 week the pupa opens and turns into an adult ladybug.
Behavior
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Lady birds might look cute, but ladybirds were found by early Australian farmers to be lethal killers ‚ of crop pests, that is. One such predator is a ladybird known as the mealybug ladybird, Cryptolaemus montroutizieri. These lay their eggs in the egg masses of common pest insects such as mealybugs. When the larval ladybirds hatch out, they immediately set about eating the mealybug eggs. As adults, ladybirds will also feed on both eggs and larvae of these pests.
Currently,ladybirds are even being used to control insect pests in eucalypt plantations. They feed on the immature stage of the Eucalyptus leaf beetle. The results suggest tree plantations could benefit from the release of ladybirds early in the season when pests are laying eggs.
Habitat
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The Lady bird was originally found in Austrailia and the name was changed by americans to the common name lady bug. The ladybird beetle is also native to temperate and subtropical parts of Asia. Since 1916 populations of this species have been introduced throughout the world, either deliberately, or by accident through international transport. A primary habitat for the bettle is a garden environment because undeveloped larve need a relative large amount of food before they can become an adult ladybird.
Brief Summary
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The Common Spotted Ladybird is a medium sized orange ladybird. It has 23 large black spots on the wing covers. The larvae is black when they hatch and go through four stages of development (instars) before pupating. The larvae have two yellow bands round the abdomen after the second instar.
Size
8mm
Habitat
common in gardens
Food
Both adults and larvae eat small insects such as aphids, scale insects and mites.
Breeding
Common Spotted Ladybirds lay eggs on food plants. The eggs hatch into carnivorous larvae, then pupate into oval pupae before hatching out as adults.
Classification
Class: Insecta
Order: Coleoptera
Family: Coccinellidae
Genus: Harmonia
Species: conformis
Common Name: Common Spotted Ladybird
Relatives in same Genus
Tortoise-shelled Ladybird "H. testudinaria"
Risks
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Benefit(s): The Asian Ladybird Beetle is beneficial for most of the year; it has contributed to a decrease in pesticide use on many crops and in orchards.
Threat(s): Asian Ladybird Beetles are anecdotally suspected to be responsible for a decrease in the numbers of native beneficial insects through predation and by elimination of scarce prey, although this has not been scientifically proven. On a lesser “threat” level, the beetles seek shelter for overwintering, and when a location is found, they emit an "aggregating pheromone" to attract other beetles. Often, they choose a human home and gather in the dozens, hundreds or thousands. They remain in that location through the winter, annoying humans with their numbers, smell, and biting. The yellow, odorous defensive compound may also stain furniture, carpets and draperies.
Distribution
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Original Distribution: Southeast Asia
By 1994, the beetle was commonly found throughout the continental U.S. and Canada.
Between the late 1910’s and the mid-1970's, there were several planned and accidental introductions to the U.S., with no survival. Many planned releases across the eastern U.S. in the late 1970's and early 1980's were attempts to use the beetles to help control aphids and scales. After years without a sighting, the beetle was seen in Louisiana in 1988. Whether this final, successful colonization was due to a planned release or an accidental introduction is under debate.
Harmonia conformis
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Harmonia conformis, the large spotted ladybird,[1] is a species of ladybird (the family Coccinellidae). It has a light reddish appearance and its colouration includes 20 large black spots, 18 of which are found on the elytra (wing covers).[2] They are quite large for ladybirds, being about 6–7 mm long.[2] It is a predator of other insects, eating aphids as both a larva and imago (adult).[2] It is found in Australia, and has been introduced to New Zealand, where it is common in northern regions.[2] Another member of the same genus, Harmonia antipodum, also occurs in New Zealand. This species, however, is a native and is much smaller and harder to find.
Life cycle
This ladybird has annual cycle where the duration of each life stages is dependent on the temperature of the environment.[3] Their life cycle begins with the deposit of yellow eggs by the female in an area where there are prey readily available for the larvae once they have hatched.[3] As larvae, they proceed through four sub-life stages beginning with a form that is dark in color with prothorax and six legs.[3] The second sub-life stage is when the white external spine (scolus) develops. During the third sub-life stage, the larvae develop more coloration and three pairs of legs.[3] The fourth sub-life stage is the further development of coloration and growth of abdominal segments which help the larvae during molting.[3] Once the larva is fully grown, it attaches itself to a plant to form its pupa.[3]The adults then hatch from this pupa and begin to seek out mates.[3]
References
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Harmonia conformis: Brief Summary
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англиски
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Harmonia conformis, the large spotted ladybird, is a species of ladybird (the family Coccinellidae). It has a light reddish appearance and its colouration includes 20 large black spots, 18 of which are found on the elytra (wing covers). They are quite large for ladybirds, being about 6–7 mm long. It is a predator of other insects, eating aphids as both a larva and imago (adult). It is found in Australia, and has been introduced to New Zealand, where it is common in northern regions. Another member of the same genus, Harmonia antipodum, also occurs in New Zealand. This species, however, is a native and is much smaller and harder to find.
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Harmonia conformis
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Harmonia conformis est une espèce d'insectes de la famille des coccinelles.
Description
Elle possède vingt grosses taches noires dont 18 sur les élytres.
Elle mesure 6 à 7 mm de long.
Alimentation
Elle se nourrit de pucerons.
Répartition
Elle est originaire d'Australie.
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Harmonia conformis: Brief Summary
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Harmonia conformis est une espèce d'insectes de la famille des coccinelles.
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Harmonia conformis
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холандски; фламански
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Insecten Harmonia conformis is een kever uit de familie lieveheersbeestjes (Coccinellidae).
De soort komt van oorsprong voor in Australië en is geïntroduceerd in Nieuw-Zeeland.
De kever heeft dekschilden van een oranjerode kleur met twintig grote zwarte stippen. Het dier bereikt een lichaamslengte van 6 tot 7 mm.
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Harmonia conformis: Brief Summary
(
холандски; фламански
)
добавил wikipedia NL
Harmonia conformis is een kever uit de familie lieveheersbeestjes (Coccinellidae).
De soort komt van oorsprong voor in Australië en is geïntroduceerd in Nieuw-Zeeland.
De kever heeft dekschilden van een oranjerode kleur met twintig grote zwarte stippen. Het dier bereikt een lichaamslengte van 6 tot 7 mm.
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Harmonia conformis
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романски; молдавски
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Harmonia conformis (cunoscută și ca buburuza punctată mare) [1] este o specie buburuză din familia Coccinellidae. Culoarea sa este de un roșu aprins iar pe corpul saă se găsesc până la douăzeci de puncte negre, dintre care optsprezece pe elitre. [2] Această specie este destul de masivă pentru o buburuză, lungimea fiind de 6 maximum 7 mm. [2] Specia este un prădător de insecte, hrănindu-se cu afide, de la care mănâncă și adulții, dar și larvele. [2] Se găsește în Australia și a fost introdusă și în Noua Zeelandă, unde poate fi găsită mai ales în părțile nordice. [2] Alt membru al genului, Harmonia antipoda, se găsește de asemenea în Noua Zeelandă. Totuși, această specie este originară de acolo și este mult mai mică și mai greu de găsit.
Vezi și
Referințe
Surse externe
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Harmonia conformis: Brief Summary
(
романски; молдавски
)
добавил wikipedia RO
Harmonia conformis (cunoscută și ca buburuza punctată mare) este o specie buburuză din familia Coccinellidae. Culoarea sa este de un roșu aprins iar pe corpul saă se găsesc până la douăzeci de puncte negre, dintre care optsprezece pe elitre. Această specie este destul de masivă pentru o buburuză, lungimea fiind de 6 maximum 7 mm. Specia este un prădător de insecte, hrănindu-se cu afide, de la care mănâncă și adulții, dar și larvele. Se găsește în Australia și a fost introdusă și în Noua Zeelandă, unde poate fi găsită mai ales în părțile nordice. Alt membru al genului, Harmonia antipoda, se găsește de asemenea în Noua Zeelandă. Totuși, această specie este originară de acolo și este mult mai mică și mai greu de găsit.
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