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Keyword: Wasps |
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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| Gasteruptiidae | Gasteruptiidae are a family of wasps, which are found throughout the world and comprise around 500 species. These wasps are especially widespread in Australia. In Central Europe only the genus Gasteruption exists with about 12 different species.
In Germany, Gasteruption jaculator and Gasteruption assectator are the most common species.
Gasteruptiidae from the...
...teruption reach body lengths of 5 mm to 15 mm. They are characterized by a seemingly elongated 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 o... | | |
| | A colony of common wasps usually comprises 3000 to 4000 animals although colonies of 10,000 wasps are not uncommon. As many as 50,000 common wasps have been found living in one colony (in New Zealand for example). Labour in the colony is organised. The intensity of brood care is similar to that of bees. While the adult wasps are vegetarian - feeding on nectar from plants and other sugary juices the larvae of Vespidae are fed on the protein rich meat of other insects. | | |
| | | Sphecoid wasps | | The sphecoid wasps (Spheciformes) belong to the suborder Apocrita and the group Aculeata. They are further subdivided into four families: Heterogynaidae, Ampulicidae, Sphecidae and Cabronidae. Other classification methods name these families sphecoid wasps I to IV. These four families together with bees are classed as the superfamily bees and sphecoid wasps (Apoidea). | | |
| | Ichneumon wasps | | Ichneumon wasps (Ichneumonidae) are a family of wasps in the order Hymenoptera, the suborder Apocrita, the infraorder Terebrantia and the superfamily Ichneumonoidea. In Central Europe the family ichneumon wasps includes most species of Hymenoptera. Ichneumonidae includes the largest species of parasitoid Hymenoptera and is divided into 20 subfamilies. | | |
| Ichneumon wasps reach body lengths of 10-50 mm. The colouration of their bodies varies. . The basic colour is often black or reddish-brown. Many species have markings in red, white, yellow or brown. The antennae of most species have more than 16 segments. The ...
...re than 16 segments. The presence and shape of the areole in the front wings is a major identifying characteristic. The females of many species have a long ovipositor. The abdomen is clearly separated from the front part of the body.
Ichneumon wasps are widespread in various habitats such as mixed forests, deciduous forests, coniferous forests, fields, wetlands, wood shots, clearings and forest deadfall.
Species which parasitise aphids can exploit up to 200 aphids in a week. The females la...
...o 200 aphids in a week. The females lay their eggs on the surface of aphids. After one to two days, the larvae hatch and then eat the insides of the aphid out . They pupate in the hollowed out body of the aphid and after five days, the young adult wasps hatch. Some species specialize in spinning cocoons and live on their eggs.
Because the hatching wasps keep the populations of plant pests down, they are considered very useful. They are also actually used in agriculture to kill plant pests (aphids) or moths. | | |
| | Some examples of subfamilies of Vespidae are: Euparagiinae, pollen wasps (Masarinae), potter wasps (Eumenidae), paper wasps (Polistinae) and wasps (Vespinae). Approximately 5000 species of Vespidae exist worldwide and around 100 of these are found in Central Europe. | | |
| | The adult wasps are mainly found on umbelliferae flowers, mint, thistle or golden rod plants. The larvae mostly live as parasites in the nests of some kinds of bees or wasps, e.g. 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’s site, which is equipped with food stores. The young Gasteruption larvae hatch after a few days and start eating the host’s eggs ... | | |
| | Spider wasps all have the same type of body, which makes identification of individual species difficult. They are always long, lean and leggy. The abdomen is egg shaped, widening at the rear. Spider wasps are completely black or black with a red base colour on the abdomen. Spider wasps have a poisonous sting. The sting of spider wasps can be painful, but is usually harmless for humans. | | |
| | After mating, the fertilized females lay their eggs separately in each brood cell in the nests of mason bees (Osmia), Anthophora, potter wasps (Eumenidae), pill wasps (Eumenes), Vespidae or sphecoid wasps (Spheciformes). The host insects try to prevent the rubytail wasps from entering their nests, however the latter are not only equipped with a strong chitin-armoured surface, but are also able to roll their bodies and thus significantly can reduce their body surface. This protects them against bites and helps them t... | | |
| | ...ueens. 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 many colony wasps become solitary. In spring new colonies emerge from the overwintering young queens.
Wasps have a smooth sting which they use to inject crippling substances into their prey and to defend themselves (even by spraying poison) and this sting can be used again and again. The Honey Buzzard and the Ichneumon wasp are natural enemies of Vespina... | | |
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