Hiding in plain sight: A tribe of thread-legged bugs from Belize (subfamily Emesinae of the family Reduviidae) known as emesine assassins hunt by lurking at the edges of spider webs. Many are spider specialists and lure their prey by mimicking the movement of trapped insects. When the spider approaches—bam!
This article was originally published with the title "What Is It?" in Scientific American 308, 5, 29 (May 2013)