Anti-predator-defense
Guides
Cryptoglossa
Death-feigning Beetles
Cryptoglossa is a genus of darkling beetles in the family Tenebrionidae, commonly known as death-feigning beetles. Members of this genus inhabit arid and semi-arid regions of North America, where they have evolved remarkable adaptations to survive extreme desiccation and predation. The genus includes species such as Asbolus verrucosus, the blue death-feigning beetle, which exhibits distinctive defensive behaviors and physiological traits.
Eumorpha
sphinx moths, hawk moths
Eumorpha is a New World genus of sphinx moths (Sphingidae) comprising 26 described species distributed primarily across North, Central, and South America. The genus is characterized by variable larval eyespots—circular markings on the posterior body segments that function in predator deterrence. Molecular phylogenetic studies indicate Eumorpha originated in Central and South America and subsequently expanded into North America. Adults are medium to large hawkmoths with rapid, agile flight; many species are crepuscular or nocturnal flower visitors. Larvae are hornworms that feed primarily on members of the grape family (Vitaceae), though host plant associations vary among species.
Micrathena
spiny orbweavers, spiny orb-weavers
Micrathena is a genus of orb-weaver spiders containing over 100 species, predominantly distributed in Neotropical woodlands. Females are characterized by hardened abdomens bearing prominent spines, which have evolved independently at least eight times and function as anti-predator defenses. These spiders construct vertical orb webs and are diurnally active. The genus originated approximately 25 million years ago and has undergone extensive diversification in Andean cloud forests.
Pseudophyllinae
True Katydids
Pseudophyllinae is a large subfamily of katydids (Tettigoniidae) distinguished by exceptional leaf-mimicry. Members typically possess broad, flattened forewings with venation patterns that replicate leaf veins, blotches, and even simulated herbivore damage. The group contains over 20 tribes distributed across tropical and subtropical regions worldwide, with major radiations in the Neotropics, Afrotropics, and Southeast Asia. Many species are nocturnal and arboreal, inhabiting forest canopies where their crypsis provides effective predator avoidance.
Pygarctia roseicapitis
Red-headed Pygarctia Moth
Pygarctia roseicapitis is a tiger moth in the family Erebidae, found in the southwestern United States and Mexico. Adults are active from May to September and have forewings 14–17 mm in length. The species is notable for producing acoustic warning signals to deter bat predators, a behavior called acoustic aposematism. Larvae are specialists on latex-rich Euphorbiaceae and exhibit distinctive trenching behavior—cutting leaf veins before feeding to reduce latex flow.
Smeringopus
cellar spiders
Smeringopus is a genus of cellar spiders (family Pholcidae) comprising 55 species, making it the most species-rich pholcid genus in Africa. First described by Eugène Simon in 1890, the genus is largely restricted to central, southern, and eastern Africa, though some species occur in South America, Asia, Australia, and Pacific Islands. Members include some of the largest and most conspicuous pholcid spiders in their range. The genus is divided into twelve operational species groups based on morphological and geographic patterns. Smeringopus is the sister taxon to the western and central African genus Smeringopina.
Smeringopus pallidus
Pale Daddy-Long-Leg, Pale Cellar Spider
Smeringopus pallidus is a cosmopolitan cellar spider (family Pholcidae) known for its distinctive pale coloration and extremely long, slender legs. The species builds irregular, three-dimensional cobwebs in sheltered locations and exhibits specialized anti-predator defenses including rapid leg waving, leg autotomy with continued movement of detached legs as visual distraction, and thanatosis (death feigning). Originally described from Africa, it has been introduced to tropical and subtropical regions worldwide including South America, the Caribbean, Sri Lanka, Southeast Asia, Australia, and Pacific islands. The species reaches body lengths up to 7 mm with females larger than males, and is characterized by purple spots along the dorsal abdomen and a dark ventral sternal stripe.
Synchlora frondaria
southern emerald, wavy-lined emerald
Synchlora frondaria, commonly known as the southern emerald, is a species of emerald moth in the family Geometridae. The species is notable for its remarkable larval camouflage behavior, in which caterpillars decorate their bodies with plant material from their host plants. This self-decoration, combined with phenotypic plasticity in coloration, creates a 'double cloak of invisibility' that allows larvae to blend effectively into diverse backgrounds. The species occurs across a broad geographic range including the Caribbean, Central America, North America, and South America.