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Photography with cameras
Nikon D3x, Nikon D300, Canon 50D
Image editing with Photoshop |
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Keyword: Leave |
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 | |
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The Pear Sawfly prefers habitats such as forests and gardens. Depending on the weather, it produces 2 or 3 new generations a year. Reproduction is normally parthenogenetic (without males). The females of the spring generation leave the soil in early May and lay their eggs, in June, on the leaves of different plants, such as cherry, pear, juneberry, mountain ash, hawthorn, quince, birch or roses. They scratch into the leaf tissue with their ovipositor, forming a small pocket in which a single egg is deposited. After 2 weeks, the larvae hatc...
...ich a single egg is deposited. After 2 weeks, the larvae hatch and crawl sluggishly on top of the leaf and eat the tissue under scraping. They skeletonize individual leaf parts without the venation (ribs, leaf veins) and the lower epidermis. The dry leaves go brown or roll up. The larvae (cherry slug) produce no more mucus in the final stage of their development. In July, they drop from the leaf and immediately create an egg-shaped tissue below the soil’s surface, in which they quickly pupate. About ...
...h they quickly pupate. About 2 weeks later (in July and August), the adults of the 2nd cherry slug generation hatch, mate and lay eggs. The larvae (cherry slugs) are active from September to October. They also pupate and overwinter in the soil. They leave the pupae as adult cherry slugs in the spring. | | |
| | The larvae develop under water and overwinter there in their final stage of development. During the first three weeks after hatching from their eggs they leave the place where they were born and explore the surroundings of the water’s edges. They then go back into the water. In the following spring they finally leave the water via outstanding plant stems. They free themselves from their larval casing ( exuvia) while hanging from the plant and after their wings have dried, fly away as young dragonflies. | | |
| | | Flies - Brachycera | | Brachycera are a suborder of the Diptera. Due to the manner in which they leave the pupa , they are classified as the subgroups Orthorrhapha and Cyclorrhapha. | | |
| | ...ganised - the Queen only lays eggs while the workers are responsible for nest building , nest cleaning, food procurement and feeding the larvae, and the drones are responsible for the fertilization of young queens. To avoid inbreeding, some drones leave the nest and look for females from other populations.
While the old queens usually die in the autumn the young fertilized queens seek safe homes. With the cold of coming winter huge numbers of worker wasps die from starvation and as a result man... | | |
| | ...only one summer. Drones and workers have a life expectancy of 3 to 4 weeks, while a queen lives for approximately 1 year, during which time it hibernates for 8 months. There are, among bumblebees, socially parasitic species (Cuckoo bumblebees) which leave their eggs in the nests of fellows and let the fellows care for their breed. The larvae of the cuckoo bumblebees danger the fellows’ own breeds since they eat the eggs and larvae. These species have no workers. | | |
| | Common woodlouse | ...e two longitudinal rows of bright spots on their backs and bright coloured. appendages with punctiform openings (defensive glands) on their sides. They have lobes on the sides of their heads at eye level.
The common woodlouse lives among fallen leaves, in rotting wood, under stones and under the surface layer of medium moist soil in deciduous forests and bushes. It is also found in cellars, gardens, stables, greenhouses and compost heaps. An adequate level of humidity is important, since thei...
...ather. The females produce 10-70 young, up to 3 times a year. These are 2-3mm in length. The females retain the fertilized eggs in pouches. These pouches are situated on the legs and are filled with water. The young develop in these pouches and leave as small woodlice. Further brood care is not necessary. About 3 months later, the young woodlice become adults and shed their skin for a living. The adults overwinter in the soil. | | |
| | Common flower bugs mate in late summer to autumn. The females overwinter under bark, leaves or grass tussocks. From March on, they leave their hideouts and start hunting small insects. After mating, the fertilized females lay their eggs on the underside of leaves. The larvae hatch later and develop to maturity from May to June. The larvae of the 2nd generation develop within 8 weeks and are mature from September on.
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| Frequent Queries: | | wasp eggs on leaves (1) | | | | | | |
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