Asilidae - Robber flies; Slender-footed Robberfly Slender-footed Robberfly - Leptarthrus brevirostris. The robber fly grabs its prey, stabs the insect with its mouth, “injects” enzymes into the insect causing paralysis and digestion of the insides of the insect, and the robber fly carries the prey off to drink him up. Because of their size and active habits, robber flies are one of the more common flies seen in Sydney. Species; Additional images; Click here to support NatureSpot by making a donation - small or large - your gift is very much appreciated. Below to the left a light greyish robberfly. Log In. The identification keys provided are only valid for Germany and some neighbouring countries because other taxa, occurring in other regions, e.g. To the right: a wasp like robber fly, called Dioctria hyalipennis.

The classification of higher taxa (subfamilies, tribes, genera) in Asilidae is only poorly known. In some deserts they are amongst the dominant predators. Thank you. Larvae live in the soil, in wood and other habitats, feeding on organic matter, other arthropods such as white grubs, beetle pupae and grasshopper egg masses, and they may be carnivorous. Because of their size and active habits, robber flies are one of the more common flies seen in Sydney. Robber flies inhabit all regions of the world except the arctic regions. More about this species by the time we make a separate information page about it. This is a dark fly with black legs except for orange on the tibiae - but this colour doesn't extend to the apex. A few robber fly species are found in woodland settings, but they tend to congregate along the edge of the forest, or in … To the left : this robber fly Dioctria oelandica is less frightening. Robber flies throughout Australia. Length: 7-10mm. Description. Robber fly information isn’t as abundant as info about the more popular beneficials like ladybugs and lacewings. Calendar.

the subfamilies Apocleinae, Trigonomiminae, Ommatiinae, are not dealt with and the applied characters are insufficient to identify these taxa. It seems to be that robber flies prefer open areas. Although there are over 1,000 species in the United States alone, they prefer arid, sunny habitats like deserts. This may be because they exist in a relatively narrow climate band.

It has remarkable light legs. Not a very common species though, found in Southern England and Southern Wales only. The highest diversity is in the subtropical and tropical regions, but our knowledge of these fauna is insufficient and the number of new described species increases rapidly.

Adult robber flies perch on stems of low plants or other objects and attack prey in the air. They feed on bees, beetles, dragonflies, other flies, grasshoppers, leafhoppers, wasps, and other insects. Home Guide ID Request Recent Frass Forums Donate Help: Clickable Guide .