Tachinid flies - Tachina fera - Sníkjuflugur - Skordýr - Flugur - Blómafrjóvgun

Parasit fluga - Tachinid Fly - Tachina fera - Echinomyia fera - Musca fera - Sníkjuflugur - Tachinids - Tachinaire - Igelfliege - Parasitoids fly - Parasite flies - Kuklice červenonohá - Sluipvlieg - זריזבוב - Parasitflugor - Parasitfluga - Bristly fly - Sníkjuflugur - Sníkjuflugnaætt -Tachinidae. This species is very similar to Tachina magnicornis, that is a little smaller, has a medial dorsal band forming lozenges and that does not terminate in a point. There are two generations per year. This species is very similar to Tachina magnicornis, that is a little smaller, has a medial dorsal band forming lozenges and that does not terminate in a point. The Tachinidae are a large and variable family of true flies within the insect order Diptera, with more than 8,200 known species and many more to be discovered. Larvae (maggots) of most members of this family are parasitoids (developing inside a living host, ultimately killing it). In contrast a few are parasitic (not generally killing the host). Tachinid larvae feed on the host tissues, either after having been injected into the host by the parent, or penetrating the host from outside. Tachina fera can reach a length of 9–14 millimetres with a wingspan of 16–27 mm. These tachinids show a grayish upper side of the thorax, due to dense pollinosity, with regular black stripes. The abdomen is yellow orange with a wide black dorsal stripe ending in a point . They are bristly on the thorax and abdomen, especially towards the tip, where they have long thorn-shaped, protruding black bristles. Close to the thorax there is a striking, orange-red and shiny 'bump' called postscutellum, with a thin black edge. The head is yellowish colored, with long antennae, whose second segment is yellow, while the third, much shorter, is black. The back of the head shows yellowish hairs and the large compound eyes are red in color. The size of the eyes in relation to the head is gender dependent. The palps of the mouthparts are long, thin and thread like. The wings are slightly yellow tinged, show a brownish yellow veining and are yellow brown at the base. Calyptrae are whitish yellow. The legs are predominantly yellowish, but in the male they are usually dark with a yellow tip. There are two generations per year, as this species is bivoltine. Adults can be seen from the end April to the end June and from mid-July to mid-October. They feed on nectar and pollen of flowers, especially of Asteraceae (Cirsium arvense) and Apiaceae (Heracleum sphondylium). Females does not lay eggs, like a parasitic wasp, in the caterpillar, but on the leaves of a potential nutritive plant of the host caterpillars. When the eggs hatch the young larvae enter the body of the caterpillars (one larva per caterpillar) and eat them from the inside. In fact larvae are parasitoids of the caterpillars and larvae of other young insects, but mainly of moths in the families Noctuidae and Lymantriidae. In Britain afflicted species include the broom moth (Ceramica pisi), the dun-bar (Cosmia trapezina), small Quaker (Orthosia cruda) and common Quaker (Orthosia cerasi). They also parasitize caterpillars of the gypsy moth (Lymantria dispar), the black arches (Lymantria monacha), and the pine beauty (Panolis flammea).[9] Pupation occurs outside the host in the soil litter. After about two weeks the adult flies will appear. See more: https://en.wikipedia.org/wiki/Tachina_fera Tachinids are commonly referred to as ‘parasitic flies’ because the larvae feed on the body tissues of immature or adult invertebrates. However, although we use the term parasite they are really parasitoids – the difference being that parasites (like tapeworms) don’t kill their hosts, but parasitoids usually cause the death of the host in some way – either by killing them outright – or by weakening them so much that they die. See more: https://www.discoverwildlife.com/animal-facts/insects-invertebrates/fly-of-the-month-tachina-ursina/

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