Calypter

Hoverfly - Squeeze cucumber - Kjarrsveifa - Þeytigúrka - Skordýr - Garðyrkja

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• published: 21 Aug 2013
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Syrphus ribesii - Kjarrsveifa - Blómsveifa - Randafluga - Skotgúrka - Þeytigúrka ber falleg gul blóm sem eru full af hunangi sem lokkar að frjóvgandi skordýr eins og Kjarrsveifu. Episyrphus balteatus, sometimes called the marmalade hoverfly, is a relatively small hoverfly (9--12 mm) of the Syrphidae family, widespread throughout all continents. Like most other hoverflies, it mimics a much more dangerous insect, the solitary wasp: http://en.wikipedia.org/wiki/Episyrphus_balteatus . : Syrphus is a genus of hoverflies. It can be distinguished from other genera of the tribe Syrphini because it is the only genus that has long hairs on the upper surface of the lower lobe of the calypter. (as well as hairs on the rear margin of the calypter as in most Syrphini. : http://en.wikipedia.org/wiki/Syrphus Syrphus ribesii, is one of many hoverflies which exhibit wasp mimicry, through their yellow/black colouration and markings. They are commonly seen, but can be hard to detect later in the year amongst a range of similar species. : http://www.eakringbirds.com/eakringbirds2/insectinfocussyrphusribesii.htm A very common hoverfly found along hedgerows, in gardens and woods. About 1cm long, with a rounded, black body and a pattern of yellow spots and bands. Adults feed on nectar of flowers, the larvae are aphid predators. There are more than 270 species of hoverfly in the UK, ranging in size from a few millimetres to 2cm. : http://www.wildlifewatch.org.uk/Explore-wildlife/Animals/Minibeasts/Hoverfly-Syrphus-ribesii This species is almost identical to Syrphus vitripennis (Lesser Banded Hoverfly) except the female's hind femur (top part of leg) is yellow rather than black. Both sexes of S. ribesii have the basal cells of the wings covered in microtrichia (tiny hairs) which are lacking in S. vitripennis. Males often create a 'hum' by vibrating their wings when resting and this sound is often a familiar background noise in woodland during the summer. It is multiple brooded. : http://www.naturespot.org.uk/species/syrphus-ribesii Hover fly - Syrphus ribesii - Flower Flies - Kjarrsveifa Hover fly belong to a big insect family varying from small to large flies. They are among the most frequent visitors of flowers in the garden. They feed on nectar, pollen and aphid honeydew. The larvae feed on aphids and are strongly freeze tolerant with 70/ survival at - 35˚C. Hover fly live approximately 8 months. It´s easy to tell males and females apart. Like all other flies the males have much bigger eyes. These eyes almost touch eachother in the middle. Females have much smaller eyes. Kjarrsveifan - Syrphus ribesii - er algengur og mikilvægur frjóberi oft ruglað saman við Blómsveifu - Syrphus torvus - http://www.ni.is/poddur/nattura/poddu... More information: http://en.wikipedia.org/wiki/Hoverflies http://www.sciencedirect.com/science/... Fróðleik að finna hér um Sveifflugur / blómaflugur á Íslensku: http://www.ni.is/poddur/nattura/poddu... http://eldri.ust.is/media/ljosmyndir/... http://www.byflugur.is/index.php?site... Squirting Cucumber - Ecballium elaterium - Skotgúrka - Skrautgúrka - Spýtugúrka - Agúrka Squeeze cucumber - Skotgúrka er undarleg planta af agúrkuætt sem er með örvalöguð loðin laufblöð og ber göddótt græn aldin á stærð við hænuegg sem spítast af plöntunni þegar þau eru snert fullþroskuð og skjóta út úr sér öllum fræunum í blautri gusu. David Rudwick - Gardens and Greenhouse - West Lavington.