معلومات قصير موضوع انجليزي بحث تقرير بالانجليزي باللغة
الانجليزية انشاء
موضوع عن الحيوانات الاليفة وانواعها
اين تعيش ماذا ياكل مدة حياتها اسماء صغارها
تعبير عن الجمل بالانجليزي تعبير كتابي عن وصف حيوان اليف
عبارات قصيره للاطفال
information about
paragraph معنى برزنتيشن معلومات بسيطه
اسم نطق كلمة معنى كلمة برجراف حيوان
مفترس لاحم عاشب اليف متوحش وحيش الغابة موسوعة عالم الحيوانات برمائي كل شيئ عن تزاوج
انواع الانجليزي الشائعة معنى كلمة بالانجليزي
اختصارات
معلومات عن الحيوانات بالانجليزي موضوع عن الحيوانات الاليفة
بالانجليزي دورة حياتها
تغذية الحيوانات والحشرات على ماذا تتغذى كيف تتغذى الموسوعة
تتذوق الطعام تصنيف
فوائد الجنس للصف الرابع للصف السابع الاول الثاني الثالث
الخامس السادس الثامن التاسع كتابة ذكر اضرار معلومات طائر انواع تربية قصة صفات حديقة الحيوانات
حيوانات المزرعة لرياض الأطفال براعم لائحة اسماء الحيوانات
العاشبة اللاحمة حيوانات تاكل النباتات مختلطة التغذية تتغذى الغريزة الحيوانية
Insect larvae
The larva is the physiological state, which follows the egg, through which
an insect passes during its various metamorphoses, before taking the form of a
nymph, and then its final form of adult. The larval form in an insect is one of
the steps that would be like our very early childhood.
The egg that is laid according to the ritual of the species becomes a
larva, which will eat continuously to grow. In general, it looks like a
caterpillar, but this is not always the case, depending on the type of insect.
The caterpillar is only one of the forms that a larva takes, and it is not
necessarily the larva of a butterfly, many solitary wasps have larvae that have
the same shape.
The number of true legs is usually always six, but the number of pseudopods
will change. Some will moult several times before becoming a nymph, the stage
just before the mature insect.
Insect eggs
Insect eggs
Many larvae will weave a protective cocoon, such as lepidoptera, using long
threads that she secretes and braids around her. The larva becomes nymph.
Enveloped in its cocoon, the nymph, will then turn into an adult insect.
Depending on the species of insect, the development of this metamorphosis can
last a few days, weeks, or even months.
Moth caterpillar
Moth caterpillar (Alypia octomaculata)
During its growth period, the larvae eat continuously, and usually have a
well-defined diet. For example, the Colorado potato beetle feeds on potato
leaves, so it's normal to see this family of plants, because that's what
constitutes its food. When the quantity of individuals and their consumption
are large enough to harm the plant to the point of killing it, they are
considered as harmful insects.
Hymenoptera larva (Arge ochropa)
Hymenoptera larva (Arge ochropa)
The appearance and size of the larvae vary according to the family, and
even the insect species. Some are tiny, others are quite big, some have smooth
skin, and some are completely covered with hair. It is by these differences
that the identification of the larva can be made. Size, color, pattern, shape,
season ... are clues used to identify a species of insect larva.
Photo of aquatic larvae
Aquatic larva
Some insects, like dragonflies, have larvae that live in the aquatic
environment, and do not look like caterpillars. Flies usually give maggots,
Lampyrids have larvae covered with scales like scales.
Lampyrid larvae (fireflies)
Lampyrid larvae (fireflies)
The feeding of a larva again depends on the species of this one. It is not
because adults are carnivorous that they are also in the larval stage. Many
species have larvae that eat prey, but adults eat only nectar. The opposite is
also observed.
Photo of Limacodidae larva with irritating hair
Larva of Limacodidae with irritating hair
Some are harmless, but many have good defenses against predators. Some have
irritating hairs, others produce smelly or corrosive liquids, when they are not
masters of camouflage, except those that display their toxicity by their bright
colors.
Larvae are, despite all these means, a very great source of food for all
orders and families of animals. Their more limited means make their prey fairly
easy, and their large quantity an essential element in the food chain.
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