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Thread-legged Assassin Bug

Family Reduviidae, Subfamily Emesinae

Published on Project Noah
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Field Notes

Description:

The Thread-legged Bugs are capable of catching prey, but they often take an easier route to finding food: they steal insects caught in spider webs. Areas of shrubbery covered with sheet webs of spiders seem to be favorite haunts,
and the bugs tiptoe around on their impossibly thin legs, barely disturbing the webs, as they pick out prey caught in the silk.

Species ID Suggestions

Thread-legged (Assassin) Bug

Family Reduviidae, Subfamily Emesinae

Comments (4)

Your new first photo is definitely better, you can really make out its raptorial forearms!
Ignacio, I share your love for the Hemiptera. They are endlessly fascinating to me!
Wow that's very amazing, i had o idea about that... I don't have a closer shot because with the camera i use it's really hard to focus such a little and thin insect and he was not very happy to see me and ran away, but i made a zoom of one, it is all can i do... Hope you don't mind if i use some of that amazing info you gave in the description box. Thanks a lot, think i'm falling in love with hemiptera they are such an amazing creatures and very interesting
Great spotting Ignacio! The Thread-legged Bugs are capable of catching prey, but they often take an easier route to finding food: they steal insects caught in spider webs. Areas of shrubbery covered with sheet webs of spiders seem to be favorite haunts, and the bugs tiptoe around on their impossibly thin legs, barely disturbing the webs, as they pick out prey caught in the silk. The thread-legged bug Stenolemus bituberus, which is native to Australia, preys on web-building spiders. It uses one of two different predatory strategies: stalking, in which it approaches its prey slowly and strikes when within range, or luring, in which it plucks the silk threads of the spider’s web with its forelegs, which mimics the behaviour of an insect trapped in the web and thereby attracts the resident spider to within striking distance. The luring predatory behaviour displayed by S. bituberus represents a form of aggressive mimicry. Wish you could have gotten a closer shot!
Photographed
PublishedApril 13, 2012

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