Their sticky like legs help them blend in with branches they perch on.
http://wiki.answers.com/Q/How_does_the_robber_fly_use_c...
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This fluid soon causes the victim's "insides" to become liquid and the robber fly then proceeds to suck it dry, leaving nothing but an empty shell. They obviously need counselling. (someone said they should be called the IRS fly);
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www.thaibugs.com/Articles/robber%20fly%20facts.html
www.thaibugs.com/Articles/robber%20fly%20facts.html
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Common Name: Robber fly; Scientific Name: Varies; Order: Diptera ... A robber fly, ; (Diptera: Asilidae). Photo by Drees. ... A robber fly. Photo by Drees.
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insects.tamu.edu/fieldguide/cimg228.html
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By contrast, smaller islands such as the Hawaiian chain have no indigeous or introduced species (Hull 1962). The majority of robber fly species are found in dry, ... Sexual dimorphisms are not extreme, although females tend to have slightly broader abdomens than males. Most robber flies have a brown, gray, or black coloration.
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entomology.ifas.ufl.edu/creatures/beneficial/flies/robb...
entomology.ifas.ufl.edu/creatures/beneficial/flies/robber_flies.htm
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Britannica online encyclopedia article on robber fly (insect), any of about 6,750 species of predatory insects, worldwide in distribution, in the fly order, Diptera. Robber flies range in length to almost 8 cm (3 inches), making them the largest of all flies. ... The robber fly is a predator of almost all flying insects.
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www.britannica.com/EBchecked/topic/505277/robber-fly
www.britannica.com/EBchecked/topic/505277/robber-fly
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WHAT IS A ROBBER FLY? ... WHAT IS A ROBBER FLY?; LIFE CYCLE; ECOLOGY; PEST STATUS; COMMON KENTUCKY ROBBER FLIES; COLLECTING & PHOTOGRAPHY; ... Above: Robber fly eyes, showing hollow area at the top of the head between the eyes. This hollow area is not present on most other kinds of flies. (B. Newton, 2003)
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www.uky.edu/Ag/CritterFiles/casefile/insects/flies/robb...
www.uky.edu/Ag/CritterFiles/casefile/insects/flies/robber/robber.htm
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The impressive hornet robber-fly is so-named for its colouration and superior size, which together afford a passing likeness to a hornet. In spite of its threatening appearance - it is indeed one of our largest flies - Asilus is however, quite harmless to man.
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www.lbp.org.uk/downloads/PrioityInverts/HornetRobberFly...
www.lbp.org.uk/downloads/PrioityInverts/HornetRobberFly.pdf
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We saw this Large Yellow Robber Fly a few times in Karawatha Forest, from mid to late summer. It usually rested on large gum tree trunk. ... This Large Robber Fly looks similar to the Giant Robber File, this fly is about the same giant size or a little bit smaller. The upper side of the abdomen is golden yellow and the...
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www.brisbaneinsects.com/brisbane_robbers/LargeRobberFly...
www.brisbaneinsects.com/brisbane_robbers/LargeRobberFly.htm
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The Giant Blue Robber Fly has the relatively small head, legs are not long but with board abdomen. The body and legs is covered with short grey hairs. Whole body, includes eyes, abdomen and legs are in dark steel blue colour.
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www.brisbaneinsects.com/brisbane_robbers/SteelBlueRobbe...
www.brisbaneinsects.com/brisbane_robbers/SteelBlueRobber.htm
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