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Keyword: Helophilus |
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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| Helophilus trivittatus | Helophilus trivittatus is a species in the order two-winged flies (Diptera), the suborder flies (Brachycera), the infraorder Muscomorpha (section Aschiza), the superfamily Syrphoidea, the family hoverflies (Syrphidae), the subfamily Milesiinae (synonym Eristal...
...e suborder flies (Brachycera), the infraorder Muscomorpha (section Aschiza), the superfamily Syrphoidea, the family hoverflies (Syrphidae), the subfamily Milesiinae (synonym Eristalinae), the tribe Eristalini, the subtribe Helophilina, and the genus Helophilus. Some scientific synonyms for this species are: Helophilus trivittata, Tubifera trivittata, Helophilus parallelus, Helophilus parrallelus, Musca parallelus and Musca parrallelus. Helophilus trivittatus are widespread in the Palaearctic ecozone of Asia, in Europe and in North America. It is widespread in Germany, migratory and appears yearly with varying frequency. | | |
| | Adult Helophilus pendulus reach body lengths of 10 - 14 mm. Their faces are yellow and have a wide black stripe in the middle. The antennae are black with yellow bristles. The thorax is black with 4 longitudinal yellow stripes. The scutellum is brown. Helophilus pendulus have pale wings with a dark patch at the edge. The wings have a slight brownish tint. The abdomen has a black base colour and a striking marking on its surface in yellow, white, red and brown. The legs of Helophilus pendulus are yellow, with black and red sequences. The hind legs are broader. | | |
| | | ...terior and middle pair of legs are mostly reddish in –colour, while the rear pair are black and red and larger. The upper part of the legs (femurs) is thick, and the tibia are curved and get thinner towards the feet (tarsi). Due to their appearance, Helophilus trivittatus can easily be confused with Helophilus pendulus. However the females of the latter, have a clearly visible black stripe on the face. In addition, the white diagonal line on the 4th abdominal segment is broken in the middle in Helophilus pendulus. | | |
| | Helophilus pendulus | | Helophilus pendulus belong to the family hoverflies (Syrphidae) in the order two-winged flies (Diptera). This species is widespread in Europe and Asia. | | |
| Helophilus trivittatus are active from May to October but mainly in August. They live in various habitats, but prefer green fields with plenty of flowering plants and damp areas such as ditches or ponds. However the occurrence of this species is not confined t...
...s often fly long distances in search of pollen and nectar. Among the numerous flowering plants they visit are: thistle, goldenrod (Solidago), Aegopodium podagraria, Senecio, oregano (Origanum) and hogweed (Heracleum). As pollinators of these plants, Helophilus trivittatus play an important ecological role. | | |
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