الاثنين، 26 مايو 2014
post (7)
Economic importance : الاهمية الاقتصادية
herbivores & scavengers.
تتغذى هذه الحشرات على النباتات وتعتبر مترممات ايضا
post (6)
Habitates : اماكن المعيشة
terrestrial ,can be found in burrows, in cracks in soil or amongst leaf litter .
some species are found in houses ,especially rural ones.
يعتبر صرصور الغيط حشرة ارضية تعيش فى الجحور والشقوق وفى التربة وبين اوراق الشجر المتساقطة.
وبعض منها يوجد فى المنازل وخاصة الموجودة فى الريف
post (5)
Characteristics : اهم الصفات
*Hind legs usually adapted for jumping (hind femur enlarged )
* Cerci short ,un-segmented.
*Ovipositor long & slender.
*Antenniae long ,filiform
*Tympanum at base of front tibia, if present
* Tarsi 3-segmented
post (4)
classification : التصنيف
kingdom :Animalia.
phylum : Arthropoda.
class : Insecta .
Order : Orthoptera .
Family : Gryllidae .
species : Gryllus bimaculatus
post (2)
continue general characteristics of orthoptera:
Orthopterans have a generally cylindrical body, with hind legs elongated for jumping. They have mandibulate mouthparts and large compound eyes, and may or may not have ocelli, depending on the species. The antennae have multiple joints, and are of variable length.[1]
The first and third segments of the thorax are enlarged, while the second segment is much shorter. They have two pairs of wings, which are held overlapping the abdomen at rest. The forewings, or tegmina, are narrower than the hindwings and hardened at the base, while the hind wing is membranous, with straight veins and numerous cross-veins. At rest, the hindwings are held folded fan-like under the forewings. The final two to three segments of the abdomen are reduced, and have single-segmented cerci.
post (1)
General characteristics of Order Orthoptera:
Orthoptera ;is an order of insects with paurometabolous or incomplete metamorphosis, including the grasshoppers, crickets, cave crickets, Jerusalem crickets, katydids, weta, lubber, Acrida, and locusts. Many insects in this order produce sound (known as a "stridulation") by rubbing their wings against each other or their legs, the wings or legs containing rows of corrugated bumps. The tympanum or ear is located in the front tibia in crickets, mole crickets, and katydids, and on the first abdominal segment in the grasshoppers and locusts.[1] These organisms use vibrations to locate other individuals.
Grasshoppers are able to fold their wings, placing them in the group Neoptera.
الأحد، 25 مايو 2014
post (6)
Economic importance : الاهمية الاقتصادية
Adults & naiads are predators on flying insects & small aquatic insects.
الطور البالغ والطور الغير بالغ يعتبروا مفترسات على الحشرات الطائرة والكائنات المائية الصغيرة
post (5)
Habitates : اماكن المعيشة
aquatic ,usually found in ponds ,lakes ,water canals
تعيش فى البيئات المائية وتوجد عادة فى البرك والبحيرات وقنوات الماء
post (3)
Immatures:
*body usually long & slender.
*three leaf-like gills at rear of abdomen.
Adults:
*antennae short & bristle-like .
*compound eyes large,often covering most of the head.
*four membraneous wings with many longitudinal & cross veins
*base of wings narrow , stalk-like
*one distinctively pigmented cell (stigma) on leading edge of wing
*abdomen : long & slender.
post (2)
classification : التصنيف
kingdom : Animalia.
phylum : Arthropoda.
class : Insecta.
order : Odonata.
Family : Coenagrionidae.
sub-family : Zygoptera.
species : Ischnura senegalensis
السبت، 24 مايو 2014
post (9)
Economic importance : الاهمية الاقتصادية
Adult & naiad are considered as predators.
Adults are predators on flying insects.
Naiads are predators on small aquatic organisms.
يعتير للطور البالغ والغير بالغ اهمية اقتصادية كمفترسات.
حيث يتغذى الطور البالغ على الحشرات الطائرة.
ويتغذى الطور الغير بالغ على الكائنات المائية الصغيرة
post (7)
Habitates : اماكن المعيشة
Aquatic ,usually found in ponds , lakes ,water canals.
تعيش فى البيئات المائية .
وتوجد فى البرك والبحيرات وقنوات المياه
post (5)
characteristics : اهم الصفات
Immatures : الطور الغير بالغ
*body robust.
*rectal gills located within abdomen.
Adults : الطور البالغ
*Antennae short and bristle-like .
*compound eyes large , often covering most of the head .
*Four membraneous wings with many veins & crossveins.
*Base of hind wing broader than forewing.
*One distinctively pigmented cell (stigma) on leading edge of
wing .
*Abdomen long & slender>
post (4)
classification : التصنيف
kingdom :Animalia.
phylum :Arthropoda.
class : Insecta.
Order : Odonata.
Family : Libellulidae.
sub-Family : Anisoptera.
species : Crocothemis erythraea
post (2)
Adult Odonata :
At left (first) , an adult dragonfly (Anisoptera). Notice the relatively stout body, and the wings extending to each side while the dragonfly is perched
. At right (second ), an adult damselfly (Zygoptera). Damselfly bodies are slender by comparison, and wings are held above the body while at rest.
post (1)
Introduction to order Odonata
Dragonflies and Damselflies
The order Odonata ("toothed ones") includes some of the most ancient and beautiful insects that ever roamed Earth, as well as some of the largest flying invertebrates ever to have lived. Odonata consists of three groups:
a) Anisoptera (which includes dragonflies),
b)Zygoptera (which includes damselflies), and
c) Anisozygoptera (a relict group represented by only two living species. This order is very diverse with about 5000 species, and its members are easy to observe.
الجمعة، 23 مايو 2014
post (7)
Economic importance: الاهمية الاقتصادية
feeding on diatoms ,algae ,or are carnivores .
naiads are ecological indicators of good water quality ,& are an important source of food for fish & other aquatic wildlife .
Anglers often use mayflies as bait.
تتغذى على الدياتومات والطحالب او تتغذى على المواد الحيوانية.
وجود الطور البالغ يعتبر دليل بيئى على جودة الماء وتعتبر مصدر هام كطعام للاسماك والحياة البحرية.
والصيادين يستخدموه كطعم.
post (6)
Habitats of Mayfly: اماكن المعيشة
nymph lives in aquatice habitats ,but adults live near water.
الطور الغير بالغ يعيش فى الماء بينما الطور البالغ يعيش بالقرب من الماء
post (5)
characteristics of Mayfly اهم الصفات
a) fore legs of male elongated ,used to grasp female in flight.
b)mouthparts of adults reduced, unsclerotised.
c)hind wings reduced ,smaller than fore wings.
d) mayflies moult after they have fully-formed ,functional wings .
e) presence of awinged ,pre-adult stage (subimago) is unique among insects.
post (2)
clssification of mayfly التصنيف
kingdom : Animalia
phylum : Arthropoda
class : Insecta
order : Ephemeroptera
Family : Polymitarcidae
species : Ephoron savignyi
الخميس، 22 مايو 2014
post (6)
Economic importance of silver fish الاهمية الاقتصادية للسمك الفضى
omnivorous , feed on starchy materials
تتغذى على المواد الحيوانية والمواد النشوية مثل الورق
post (5)
Habitats of silverfish طرق المعيشة
under bark , litter , in caves , in ant nests & among old books.
تعيش هذه الكائنات تحت لحاء الاشجار وفى النفايات وداخل اعشاش النمل وبين الكتب القديمة وفى الصحراء
post (3)
characteristics of silverfish صفات السمك الفضى
a)body flattened
b)long cerci & median filament
c)compound eyes separate
d)ventrally covered with scales
post (2)
classification of silverfish:
kingdom : Animalia
phylum : Arthropoda
class : Insecta
order : Zygentoma
Family : lepismatidae
post (4)
Habitate: مكان المعيشة
in soil ,under plants & in moist places
تعيش فى التربة وتحت النباتات وفى الاماكن الرطبة
Economic importance: الاهمية الاقتصادية
they are decomposers that break down & recycle organic wastes. afew species feed on living plants & are occasionally regarded as pests. they may damage seedlings in early spring . some species is apest of alfalfa , others are frequent pests of commercial mushrooms
تعتبر هذه المخلوقات مححلة لانها تكسر وتعيد تدوير المخلفات العضوية. والقليل من الانواع تتغذى على النباتات الحية وتعتبر بالصدفة كآفات .
ويمكن ان تدمر بادرات النبات فى بداية فصل الربيع.
وبعض الانواع تعتبر آفات على البرسيم وعيش الغراب.
in soil ,under plants & in moist places
تعيش فى التربة وتحت النباتات وفى الاماكن الرطبة
Economic importance: الاهمية الاقتصادية
they are decomposers that break down & recycle organic wastes. afew species feed on living plants & are occasionally regarded as pests. they may damage seedlings in early spring . some species is apest of alfalfa , others are frequent pests of commercial mushrooms
تعتبر هذه المخلوقات مححلة لانها تكسر وتعيد تدوير المخلفات العضوية. والقليل من الانواع تتغذى على النباتات الحية وتعتبر بالصدفة كآفات .
ويمكن ان تدمر بادرات النبات فى بداية فصل الربيع.
وبعض الانواع تعتبر آفات على البرسيم وعيش الغراب.
post (3)
classification : التصنيف
kingdom: Animalia
phylum: Arthropoda
class: insecta
order: collembola
Family: Entomobryidae
species: prodrepanura musatica
kingdom: Animalia
phylum: Arthropoda
class: insecta
order: collembola
Family: Entomobryidae
species: prodrepanura musatica
post (1)
اهلا وسهلا بيكم
واحب اقولكم ان بجد اى حد بيدرس عالم الحشرات وبتعمق فيه مابيقدرش يقول غير سبحان الله المبدع الخالق الذى تجلى ابداعة فى هذه المخلوقات التى يكاد البعض منها لا يرى بالعين المجردة
واحب اقولكم ان بجد اى حد بيدرس عالم الحشرات وبتعمق فيه مابيقدرش يقول غير سبحان الله المبدع الخالق الذى تجلى ابداعة فى هذه المخلوقات التى يكاد البعض منها لا يرى بالعين المجردة
الاشتراك في:
الرسائل (Atom)