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Photo "Weevil"

photo "Weevil" tags: macro and close-up, nature, insect
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Weevil cr
Weevils, or elephants (genus Curculionidae) - the largest family of beetles, numbering more than 70,000 species, most of which inhabit the tropical regions of the Earth. Their Curculionidae (snout beetles), for which they were called. Most weevils develop from plant tissues within them. Less larvae feed on the outside of the leaf or flower (Hyperini, Cionini). Many developing in the soil, feeding on plant roots, rarely - litter. Few people eat rotting wood (Cossoninae). The vast majority of species associated with herbaceous vegetation, the majority of dicotyledons. Links to monocotyledonous slightly less with spore even less.
In the world fauna has more than 70,000 species, of which Russia about 5000 species.
Usually there are representatives of the length from one to 30 mm, and in the tropics to 50 mm. The body shape of weevils is very diverse, it is: almost cylindrical rod (Lixus). elongated flattened (Larinus, Cionus), orthorhombic form (Curculio, Trigonocolus), convex hemispherical (Orobitius), globular (Ceutorhynchus) or pear (Anthonomus, Catapionus). Color covers varies from yellow, brown to black, sometimes with patches of lighter or darker cuticle on pronotum and elytra, or yellow, reddish-brown legs, a body with less copper, metallic green or blue tint. The upper part of body naked or covered with hairs, voloskoobraznymi scales or broad scales, often with rows of longer setae on the elytra, with white, yellow, brown or black spots or bands, which are beetles are well masked by soil and vegetation. Sometimes the body of beetles covered earthen crust, while the species living near the water is thick, mostly dull glazurevidnye flakes of brown shades.
Males are smaller than females and have a shorter rostrum, its lower bending and greater width than that of females in male antennae are located closer to the head, eyes another form, the elytra less convex, abdominal sternites bent in the middle.
The larvae of weevils are predominantly sickle-shaped body and usually has a white or yellow in color. The development of the larvae may take place in the stems of herbs, roots or feed on litter. Weevils primarily herbivores, less fitosaprofagi. They eat almost all kinds of plants, but are more concerned with bipartite than monocotyledonous. The larvae mine the leaves, their development occurs in fruits, flowers, buds, petioles, young twigs and branches, gnaw through tunnels under the bark, at different depths in healthy and in dried or rotten trees.
Adult beetles often feed on green parts of plants, pollen, fabric flowers or developing fruit. Species such as the genera and Cryptorrhynchus Cossonus gnaw wood, covered with mushrooms and eat the mycelium of fungi. Many wetland weevils, such as the genera Bagous and Ceutorhynchus, fed tissues of aquatic plants, even under water. Weevils are closely linked with certain types of food plants. Polyphagia greater among shirokohobotnyh, ie at more advanced in evolutionary terms.
Many soil weevil larvae prefer shallow roots of plants, including shrubs and trees. Some, for example representatives of the genus Emphytus (Otiorhynchus), damaging the roots of seedlings and saplings. Most damaged seedlings and saplings unwell, are stunted, although over time restore the damaged plant roots and continue to grow. Bring greater harm to the adult beetles weevils, which can destroy seedlings of tree and shrub species, browse the seedlings and saplings, and their kidneys and even the bark of one or two summer seedlings often leading to death.
The larvae can damage field crops, vegetables, garden, forestry and industrial crops and plant stocks, developing in the tissues, fruits and seeds. There are also serious pests. In addition to pests, there are several species of weevils used in biocontrol of weeds. 
mon 9 Aug 2010 00:00
comments (15 from 35)
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Manuel Domingues Manuel Domingues #1 mon 9 Aug 2010 01:56

Excellent macro! Thanks for the text

Valerij Basyrov Valerij Basyrov #2 mon 9 Aug 2010 02:00

Thank you, Manuel!

aleksandr krayz aleksandr krayz #3 mon 9 Aug 2010 08:02

Красиво и познавательно !

petros L petros L #4 mon 9 Aug 2010 08:06

superb Macro!

Svetlana Volevskaya Svetlana Volevskaya #5 mon 9 Aug 2010 08:46

Ну, этот "парень" мне очень нравится, хоть и вредитель! smile Хорошо получился! Где он расположился на этот раз? Что объедает?

Valerij Basyrov Valerij Basyrov #10 mon 9 Aug 2010 10:26

Спасибо! Сидел на мальве...

Aleksander Voroshilov Aleksander Voroshilov #6 mon 9 Aug 2010 09:18

Взгляд у него какой... Академический!

Valerij Basyrov Valerij Basyrov #11 mon 9 Aug 2010 10:30

А нос? Гордо выставил на обозрение всего насекомого царства.. smile

Alla S. Alla S. #7 mon 9 Aug 2010 09:58

Знакомый жучок, с очень ласковым милым "именем", кажется что и вредителем-то быть не может smile
Хорошо кадрировали, но грип маленький sad smile

Valerij Basyrov Valerij Basyrov #12 mon 9 Aug 2010 10:32

ГРИП маловат, согласен. Не в оправдание, как пояснение: он бегал взад-вперед - еле успевал за ним... smile

AHHA AHHA #19 mon 9 Aug 2010 15:00

ГРИПа - это "она": ГлубинА Резкости Изображаемого Пространства. О!)))

Занятный он, долгоносик.)

Valerij Basyrov Valerij Basyrov #21 mon 9 Aug 2010 15:31

Конечно, ОНА. Спасибо, за уточнение... smile

Этот аккаунт был удален Этот аккаунт был удален #13 mon 9 Aug 2010 12:39

Как диафрагму не закручивай ГРИП больше не будет. rolling on the floor laughing Это свойство макрообъективов. При зажатой диафрагме например от 5,6 до 22 ГРИП увеличится на миллиметр.

This account has been deleted This account has been deleted #14 mon 9 Aug 2010 12:44

Для макро цифромыльницы (но хорошие) подходят больше. За счет маленькой матрицы ГРИП в разы больше.

Этот аккаунт был удален Этот аккаунт был удален #15 mon 9 Aug 2010 13:48

Двух мнений быть не может.