(CW: images of an assassin bug feeding on another assassin bug.)
Assassin bugs are known to feed on other insects. Here's one spotted feeding on another assassin bug. A Campsolomus sp. feeding on a Cosmolestes picticeps spotted at Tampines Eco Green on 14 April 2023. Yes, they are two different species, so this is not cannibalism.
On iNaturalist [ https://www.inaturalist.org/observations/154811474 ]
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Red Assassin Bug, Rhynocoris iracundus Canon 7D EFS-60 2.8 f/3.5 1/250 iso: 640 Srbsko, Czech Republic June 24, 2019 #bugs #AssassinBugs #hemiptera #insects #invertebrates #macro
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Red Assassin Bug, Rhynocoris iracundus Canon 7D EFS 60 2.8 f/4 1/200 iso:200
Srbsko, Czech Republic June 13, 2020 #AssassinBugs #hemiptera #bugs #Insects #invertebrates #grasslands #Macro
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Interesting, but I'm not sure if this stretches the definition of 'tool use'.
"[W]e staged predatory interactions of resin-deprived and resin-equipped assassin bugs (Gorareduvius sp.) and discovered that applying resin as a tool conveys a clear predatory advantage to the assassin bugs."
https://royalsocietypublishing.org/doi/10.1098/rsbl.2022.0608
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Referenced link: https://phys.org/news/2023-05-tool-insect-australian-assassin-bugs.html
Discuss on https://discu.eu/q/https://phys.org/news/2023-05-tool-insect-australian-assassin-bugs.html
Originally posted by Phys.org / @physorg_com: http://nitter.platypush.tech/physorg_com/status/1653419077526867970#m
Example of tool use by an insect found in Australian #assassinbugs @RSocPublishing https://royalsocietypublishing.org/doi/10.1098/rsbl.2022.0608 https://phys.org/news/2023-05-tool-insect-australian-assassin-bugs.html
Pale Green Assassin Bug (Zelus luridus)
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https://commons.wikimedia.org/wiki/File:Pale_Green_Assassin_Bug_(Zelus_luridus)_Nymph_-_Guelph,_Ontario_01.jpg
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Fitchia aptera
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https://commons.wikimedia.org/wiki/File:Fitchia_aptera_-_Guelph,_Ontario.jpg
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