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Keyword: Parasitic | | | Seite 1 von 2 1 2 | | | |
| ... young queens. In Europe bumblebees survive 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... | | |
| | ...sting 1 to 2 months, they are living solitarily or in small groups. The caterpillars then pupate. The pupae are brown or light green with shimmering patches and are covered in spines. 12 days after pupating the small tortoiseshell butterfly hatches. Parasitic Diptera pose a threat to the caterpillars. Birds eat the pupae, but not the caterpillars. | | |
| | | ...their larvae, on birch or elm, for example. The eggs are deposited in groups of 30 - 50. The females care for their brood by sitting on the eggs and fasting in order to stay and defend them against potential attackers such as ants, spiders, beetles, parasitic wasps and other enemies. Even after the larvae (nymphs) have hatched from their eggs, the mothers remain on guard. The survival rate of the nymphs is therefore almost 100%. | | |
| | Natural enemies of the ladybird are: ground beetles, Reduviidae , birds, lizards, shrews and frogs. The Dinocampus coccinellae (a parasitoid wasp) is a specialized enemy. Certain Hymenoptera, aphids and nematodes also have a harmful, parasitic relationship with ladybirds. | | |
| | Plant-parasitic Hemipterans (Sternorrhyncha) | | Sternorrhyncha are a suborder in the order Hemiptera. This suborder is divided into 5 superfamilies, namely aphids (Aphidoidea), scale insects (Coccoidea), Psylloidea, whiteflies (Aleyrodoidea) and Phylloxeroidea. The Sternorrhyncha are common and widespread throughout the world. There are approximately 8, 000 species. Some 1060 species occur in Central Europe. Sternorrhyncha reach body lengths of 0. 5 - 38 mm. In shape and colouration, the species differ strongly. | | |
| | ...sue 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). | | |
|  | | Plant-parasitic Hemipteran - Sternorrhyncha | | >> Picture |
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| Frequent Queries: | | parasitic bumblebees (2) | | plant eggs (1) | | | | | |
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