Shape-shifter bugs
Every species in the Wild Files corpus where shape-shifter is a defining trait.
70 on file
Desert Locust
Solitary green bug, until crowded. Then it turns yellow, swarms, and darkens the sky.
Glasswing Butterfly
Wings you can read through. Anti-reflective coating better than most human glass.
Hercules Beetle
Longest beetle on Earth. Lifts 100× its weight. Wing covers shift color with humidity.
Seven-Spotted Ladybug
Eats 5,000 aphids a lifetime. Bleeds yellow. Universally considered good luck.
Orchid Mantis
The world's only animal that mimics an entire flower. Bees prefer her to the real flowers.
Silkworm Moth
Domesticated 5,000 years ago. Built the Silk Road. Adults can no longer fly.
Walking Leaf
Looks exactly like a leaf — veins, bite marks, fungal spots, the gentle sway in the wind, all of it.
Antlion
Larva digs a sand pit. Hides under it. Ant slides in. Jaws close. Adult is a delicate dragonfly. Unrelated to ants.
Jewel Cuckoo Wasp
Living jewel — iridescent blue, green, gold. Sneaks into other wasps' nests. Curls into a ball when caught.
Malaysian Dead Leaf Mantis
Looks exactly like a dead leaf — curled edges, vein patterns, fake insect damage, the leaf-in-wind sway.
European Mole Cricket
Builds an underground trumpet. Sings through it. Calls audible 600 meters away.
Madagascan Sunset Moth
Often called the most beautiful insect on Earth. Iridescent green, blue, orange, gold, red.
Bean Leaf Beetle
Major NA soybean pest. Color-polymorphic — yellow, red, tan, or orange. Vectors BEAN POD MOTTLE VIRUS.
Cherry Fruit Fly
Major NA cherry pest. Sister to apple maggot fly. The proverbial 'WORM IN THE CHERRY'.
European Mantispid
European mantis-mimic LACEWING. Larvae burrow into SPIDER EGG SACS and eat the developing spiderlings.
Onion Maggot Fly
Major NA/European onion pest. Larvae detoxify the SULFUR COMPOUNDS that make onions burn human eyes.
Spotted Cucumber Beetle
Major NA cucurbit pest. Vectors BACTERIAL WILT. 11 black spots on yellow-green elytra.
Indian Stick Insect
WORLD'S MOST COMMON PET STICK INSECT. Obligate PARTHENOGENESIS — captive populations are essentially all female.
Macleay's Spectre
Australian giant spiny stick insect. Four defensive behaviors. Popular giant pet stick insect worldwide.
Calico Pennant
Small NA dragonfly with intricate STAINED-GLASS WING PATTERNS. Perches on twigs like a tiny flag or pennant.
California Carpenter Bee
Western NA carpenter bee. Females shiny black; MALES bright GOLDEN-YELLOW with green-gold eyes.
Variable Dancer
Stream-side dancer damselfly. Distinctive jerky 'DANCING' flight pattern. Color-variable.
Evergreen Bagworm
Caterpillar drags SILK BAG. Adult female NEVER LEAVES THE BAG — wingless, legless, eyeless, mates inside.
Pacific Dampwood Termite
LARGEST termite in North America. Pacific Northwest. Ancient lineage with pseudergate worker biology.
Two-Striped Walking Stick
SPRAYS toxic chemical defense up to 40 cm — intensely irritating to vertebrate eyes. 'Devil rider' walking stick.
Migratory Locust
Catastrophic crop pest of Africa/Asia/Europe. Foundational PHASE POLYPHENISM case — solitary becomes gregarious.
Festive Tiger Beetle
Color-variable tiger beetle. Different geographic populations display GREEN, BLUE, PURPLE, RED, or COPPER elytra.
Glassy-Winged Sharpshooter
Vector of PIERCE'S DISEASE in California vineyards. Threatens $58B CA wine industry. Killed Italian olive trees.
Giant Asian Mantis
8-10 cm SE Asian mantis. Captures small lizards, snakes, hummingbirds. Popular pet mantis worldwide.
Cotton Aphid
Major cotton and melon pest. Attacks 700+ plant species. Foundational case study in pesticide resistance evolution.
Catalpa Sphinx
Famous 'CATALPA WORM' bait fishing caterpillar. Catalpa trees planted as worm farms across southeastern US.
Goldenrod Crab Spider
Color-changing CHAMELEON spider. Switches between WHITE and YELLOW to match flower color. Walks sideways like a crab.
Northern Black Widow
Eastern NA black widow. 'Broken' RED HOURGLASS marking. Potent neurotoxic venom (alpha-latrotoxin).
Green Peach Aphid
Most economically damaging APHID in the world. Attacks 875+ plant species. Transmits 100+ plant viruses.
Salt Marsh Caterpillar
Color-variable wooly bear. Mass autumn migrations across roads and gardens in southeastern US.
Hellgrammite
Predatory aquatic larva of dobsonfly. 6-9 cm. Massive sickle jaws. Most-prized live bait in NA stream fishing.
Banded Net-Winged Beetle
Bright ORANGE elytra with raised NETWORK of veins. Müllerian mimicry — multiple beetle species share the warning pattern.
Eastern Hercules Beetle
Largest beetle in eastern US. Males have dramatic pitchfork-horn morphology. CHANGES COLOR with humidity.
Golden Tortoise Beetle
Tiny GOLD MIRROR beetle. Can DYNAMICALLY CHANGE color from gold to rust-red when threatened.
Marbled Orbweaver
The 'pumpkin spider' — bright orange-and-brown marbled abdomen looks like a tiny jack-o-lantern.
Apple Maggot Fly
Foundational SYMPATRIC SPECIATION case study. Two host races shifting from hawthorn to apple since the 1860s.
Falcate Orangetip
Tiny white butterfly with HOOKED forewing tips. Males have bright ORANGE wing-tip patches.
Buffalo Treehopper
Bright green treehopper with a dramatic TRIANGULAR HORN that makes it look like a miniature bison.
Carolina Mantis
Only NATIVE mantis in eastern NA. State insect of SC. Famous for sexual cannibalism.
Pandora Sphinx
Camouflage hawk moth with olive-pink-cream graduated bands. Larva has FIVE oval eye-spots like a five-eyed snake.
Imperial Moth
14-17 cm yellow giant silk moth marked with red-purple-brown maple-leaf patches.
Promethea Moth
Day-flying male MIMICS the toxic pipevine swallowtail. Females are reddish-brown and nocturnal.
Question Mark Butterfly
Folded wings look like a dead leaf. Tiny white SILVER QUESTION MARK on the underside.
Red-Spotted Purple
Mimics toxic pipevine swallowtail. Same species as the white admiral but evolved into a mimic in the south.
Snowberry Clearwing
BUMBLEBEE-mimic clearwing moth. Sister species to the hummingbird-mimic clearwing.
Spicebush Swallowtail
Black butterfly with iridescent blue-green hindwings. Larva looks like a SNAKE with eyespots.
Common Buckeye
Six prominent EYESPOTS on the wings. Predator-deflection defense. Partial migrant in NA.
Common Whitetail
Males have CHALKY-WHITE abdomens. Flicked at rivals as territorial displays. Females look like a different species.
Eastern Forktail
Most ABUNDANT damselfly in eastern NA. Females have THREE color morphs. Female-mimics-male strategy.
Eastern Pondhawk
Eats other dragonflies. EMERALD-GREEN females, POWDER-BLUE males. Most aggressive NA pond predator.
Eastern Tiger Swallowtail
Most familiar large NA butterfly. State butterfly of 6 US states. Female has YELLOW and BLACK pipevine-mimicking morphs.
Convergent Lady Beetle
Native NA ladybug. Mass-overwinters in Sierra Nevada aggregations. Most commercially-collected biocontrol agent.
Eastern Lubber Grasshopper
Largest grasshopper in southeastern US. Flightless. Foam-producing chemical defense. Mass nymph processions.
Six-Spotted Tiger Beetle
Iridescent METALLIC EMERALD GREEN beetle. Sprints so fast it temporarily goes blind.
Twelve-Spotted Skimmer
12 dark wing spots in alternating bands. Males develop white 'flash' patches. NA flagship dragonfly.
Azure Bluet Damselfly
Brilliant azure-blue damselfly. Famous 'mating wheel' posture during copulation.
Spinybacked Orb-Weaver
Crab-shell-shaped abdomen with SIX SHARP SPIKES. Bright colors. Web tufts as visual bird warnings.
Blue-Tailed Damselfly
Females come in THREE distinct color morphs. Some imitate males to avoid male harassment.
Cuckoo Bumblebee
Bumblebee that abandoned workers. Invades host bumblebee nests, kills the queen, takes over the colony.
Comma Butterfly
White comma mark on hindwing underside. Ragged wing edges mimic a dead leaf. UK comeback species.
Garden Tiger Moth
Chocolate-brown wings with cream stripes. Orange hindwings flash. Toxic and warning-colored.
Indian Dead Leaf Butterfly
Wings closed — perfect dead leaf with veins and fungal spots. Wings open — brilliant blue-and-orange.
Spanish Fly (Blister Beetle)
Source of the cantharidin 'aphrodisiac.' Hypermetamorphic life cycle. Hitchhikes on bees to their nests.
Pea Aphid
Female gives live birth to clones already pregnant with their own clones. Photosynthesizes. Trillions of her.
Ghost Mantis
Mimics a dried leaf so well she disappears in plain sight. Green, brown, gray, ivory phases.