Sticky-trap-predation
Guides
Reduviidae
Assassin Bugs, Ambush Bugs, Kissing Bugs, Wheel Bugs, Thread-legged Bugs, Bee Assassins, Millipede Assassins, Masked Hunters
Reduviidae is a large cosmopolitan family of true bugs (Hemiptera: Heteroptera) comprising approximately 7,000 described species across more than 20 subfamilies. The family is predominantly terrestrial and predatory, with members employing diverse hunting strategies including ambush predation, active pursuit, and specialized prey capture using modified forelegs or sticky secretions. A notable exception is the subfamily Triatominae, whose members are hematophagous ectoparasites of vertebrates and vectors of Chagas disease. Most species possess a distinctive narrow neck, sturdy body, and curved proboscis that fits into a stridulatory groove on the prosternum, producing sound when rubbed against ridges. The family exhibits remarkable morphological diversity, with body sizes ranging from 12 to 36 mm and coloration spanning cryptic browns and blacks to aposematic reds, oranges, and metallic blues.
Zelus
sundew assassin bugs, milkweed assassin bugs, leafhopper assassin bugs
Zelus is a genus of assassin bugs (Reduviidae: Harpactorinae) containing approximately 60 described species, with the majority distributed in Central and South America and five species occurring in North America. The genus is characterized by a distinctive predatory adaptation: the forelegs bear dense hairs coated with a sticky, glue-like secretion produced by specialized glands, enabling prey capture through adhesion rather than force. This 'sticky trap' strategy has earned them the common name 'sundew assassin bugs,' analogous to the carnivorous sundew plants. The genus includes notable species such as Zelus longipes (milkweed assassin bug), Z. luridus, Z. renardii (leafhopper assassin bug), and Z. tetracanthus.