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Photography with cameras
Nikon D3x, Nikon D300, Canon 50D
Image editing with Photoshop |
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Keyword: Larvae |
Overview - a b c d e f g h i j k l m n o p q r s t u v w x y z |
Seite 2 von 28 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | | | | Ladybirds eat aphids, scale insects, powdery mildew, fungi, Spider mites, true bugs, thrips, beetle larvae, or larvae of Tenthredinidae and larvae of Lepidoptera. When food is short ladybirds also feed on plant substances. Cannibalism can be encountered among both adult ladybirds and their larvae. | | |
| | Mason bees | | ...lants, dead wood from trees or in the galleries of wood-boring insects. The females build individual brood chambers inside the nest using glandular secretions and leaf pieces. ) They deposit pollen and nectar in each brood chamber for the future larvae before they start laying eggs. After oviposition the brood cell is closed with a seal. The hatched larvae feed on their food stock for some weeks before they pupate.
Some species overwinter as larvae, others as adult mason bees. The latter are already active in March. The natural enemies of mason bees include the larvae of cuckoo beeswho feed on the eggs of the mason bees and their food stores.
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| | | Gasteruptiidae | | ...ated neck and abdomen, the latter, being significantly thicker towards the rear, is easily recognizable. The front wings are folded lengthwise.
The adult wasps are mainly found on umbelliferae flowers, mint, thistle or golden rod plants. Their larvae mostly live as parasites in the nests of some kinds of bees or wasps, for example, digger wasps or solitary wasps. The fertilized females lay their eggs in spring in the nests of their larvae’s hosts. This happens near the brood-cells which have adjacent food stores. The young larvae hatch after a few days and start eating the host’s eggs or larvae. Later on they feed on the stored nectar and pollen. Pupation takes place in a cocoon within the host’s breeding cell.
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| | Female Drosophilidae lay up to 400 eggs in decomposing plant material or in other substrates, which the hatching larvae then feed on. The development of the larvae takes place in 3 stages over about two weeks. The larvae feed on dead parts of plants or rotting fruits. They mainly eat the microorganisms which are involved in the decomposition of plant materials. The larvae of other species are omnivorous and eat their way through plant stems or leaves. Others live off fungal cultures or prey on omnivorous insects. Drosophilidae reproduce several times a year. | | |
| | Bot flies | | ...n different angle. The thorax is covered with scales and has a number of bristles at the rear end. Mating takes place at elevated places like trees, hills and ridges.
Egg laying takes place on host animals, most commonly on hoofed mammals. The larvae always live parasitically in the interior of the host animals (endoparasites). Many species choose specific animals as the host - which body orifice of the host animal is chosen for egg laying also depends on the species. The hatching maggots (larvae) develop accordingly in the nasal mucous membrane, the throat or beneath the skin (subcutis) of their host animals. Egg laying can be a risky business for some females as the larvae hatch very fast and can attack their own mothers.
The approach of Bot flies can cause panic reactions in in cattle which often sustain severe injuries by running away into fences or barbed wire. The migration and development of larvae inside the host animals inevitably leads to illness and sometimes to the host animals’ death. The larvaes’ stay in the host animals can last as long as several months. In their last larval stage the maggots leave the host animal and fall down to the soil to pupate.
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| | Adult Tachina fera feed on the nectar of flowering plants and on honeydew, while their larvae live off the body tissue of different caterpillars. The females lay their eggs near the caterpillars. The larvae immediately hatch from their eggs and penetrate the host caterpillars. The caterpillars die because the larvae feed on their inner tissue. The larvae are parasitic on the caterpillars of the gypsy moth (Lymantria dispar), the black arches (Lymantria monacha), and the pine beauty (Panolis flammea). | | |
| After 5 to 14 days the larvae hatch. At the end of the 3rd larval stage they are about 11 mm in length and pupate. The larvae of alder leaf beetles are first olive, later cyan and shortly before pupating bluish in colour. They have 2 rows of very hairy warts. The larvae, like the adult beetles, feed on the leaves of the grey or speckled alder (Alnus incana), hornbeam (Carpinus), birch (Betula) and hazel (Corylus). They feed, initally in groups and later alone, by scraping the surface off the leaves from the unde...
...zel (Corylus). They feed, initally in groups and later alone, by scraping the surface off the leaves from the underside, leaving only the veins, unlike the adults. eats the leaves from the lower surface by scraping them off. The development of the larvae is complete in 3 weeks (June/July). They pupate in oval spaces in the earth just beneath the surface of the soil, where they remain for 8 to 11 days. In August the beetles of the new generation leave their pupae. | | |
| | The larvae of the phantom midges live (standing vertically) in water. Their body is transparent (glass rods larvae). They have antennae, which are also shaped in such a way as to function as holding devices for the capture of small insects (eg mosquito larvae) or crustaceans (eg Daphnia). The antennae are used to impale the prey, to crush it and to guide it into the larvae’s mouth. | | |
| | Adults are often found near water. The males have feathery antennae. The abdomen of the females is almost completely covered by their wings. The larvae of Chaoborus crystallinus are transparent (glass rods larvae) and horizontally live in water. They breathe through their body surface. In the 7th abdominal segment, are hollow sacs filled with air which keep the larvae suspended. These sacs can be filled with air or water to allow the larvae to rise or fall as required. | | |
| | The fertilized females lay their eggs on the host plants of the larvae, or in the soil. The larvae feed as rootworms or mostly as leaf miners. Some species of larvae can cause considerable damage when they infest crops. This includes in particular, species of the genus Delia (Delia antiqua, Delia coarctata, Delia Floralis, Delia platura, Delia radicum) and the turnip fly (Pegomyia hyoscyami). The larvae of other species of root-maggot flies feed on fungus or rotting plant parts. Root-maggot flies overwinter in the soil as pupae. | | |
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