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Mexican folk tradition calls her 'NIÑO DE LA TIERRA' ('child of the earth') and holds she cries like a baby and is a sign of bad luck — figures prominently in southwest US and Mexican folklore.
Lone star tick bites can induce ALPHA-GAL SYNDROME — a delayed-onset IgE-mediated allergy to mammalian meat (beef, pork, lamb). Discovered in 2009.
People with alpha-gal syndrome become ALLERGIC TO MAMMALIAN MEAT — anaphylactic reactions occur 3-6 hours after eating beef, pork, or lamb. The delayed onset reflects time for absorbed alpha-gal to enter bloodstream.
She is one of the most aggressive HUMAN-BITING tick species in North America — actively pursues hosts (running across vegetation toward heat and CO2 sources) rather than waiting passively.
Rapidly expanding range NORTHWARD in response to climate change — now established as far north as southern New England, with continued northward spread documented annually.
Also transmits ehrlichiosis, Rocky Mountain spotted fever, tularemia, and southern tick-associated rash illness (STARI). One of the most clinically important arthropods in NA medical entomology.
Northern walkingsticks are extreme TWIG MIMICS — slender brown-to-green bodies, very long thin legs at twig-like angles, subtle bark-stripe patterns. Essentially invisible against tree branches.
Walking sticks SWAY GENTLY from side to side in time with the natural movement of twigs in light air — making them essentially invisible against background vegetation in motion.
Performs THANATOSIS (death-feigning) — when seriously disturbed, freezes in place and may drop from the branch, lying motionless on the ground in a stiff twig posture for several minutes.
Can perform PARTHENOGENESIS — females produce viable offspring without mating, with the resulting eggs developing into all-female clones of the mother.
Eggs look EXACTLY like small plant seeds — leaf litter contains thousands of walking stick eggs that are essentially indistinguishable from real seeds.
Spring azure larvae are tended by ANTS — Camponotus and Crematogaster ants protect caterpillars from parasitoid wasps in exchange for sweet HONEYDEW SECRETIONS from larval abdominal glands.
The brilliant SKY-BLUE wing color is created by STRUCTURAL COLORATION — microscopic wing scale ridges that scatter blue light. The wings contain no blue pigment.
She is one of the EARLIEST-EMERGING butterflies in eastern NA — adults can appear as early as March, well before most NA butterflies. Cultural icon of late-winter/early-spring.
Larvae feed on FLOWER BUDS and developing fruits (not leaves) — host plants must be in flowering state. Hosts include flowering dogwood, viburnum, blueberry, cherry, meadowsweet.
Family Lycaenidae includes the most extreme ant-mutualists — the 'large blue' (Phengaris arion) has larvae that are CARRIED INTO ANT NESTS and feed on ant larvae as obligate ant-nest parasitoids.
The species name is ONOMATOPOEIC for the male call — 'KA-TY-DID, KA-TY-DIDN'T'. Most-cited acoustic insect in eastern North American natural history.
Wings are bright green, shaped EXACTLY like a fresh oak or maple leaf, with prominent central veins running down the middle and smaller cross-veins branching off — essentially indistinguishable from a leaf.
Males form CHORUSES on warm summer evenings — multiple males calling simultaneously from neighboring trees, audible from 50-100 meters away. One of the cultural icons of southeastern US summer nights.
Calls produced by males STRIDULATING the front wings — rubbing specialized wing structures together to produce the distinctive raspy 'CHK-CHK-CHK' sound.
Females select males based on call quality — call rate, duration, and consistency are correlated with male quality. Acoustic mate selection is the species' primary mating strategy.
The American lady is distinguished from the painted lady by EYESPOTS on the hindwing underside — American lady has TWO LARGE eyespots, painted lady has FOUR-FIVE smaller eyespots.
Larvae construct distinctive 'TENT' SHELTERS — webbing together leaves of the host plant with silk to create a small enclosed shelter where the larva rests during the day.
Larvae feed exclusively on plants in family Asteraceae — especially pussytoes, pearly everlasting, cudweeds, and other 'everlasting' wildflowers. Host plant restriction is a key field-ID feature.
Partial migrant — northern populations migrate south in autumn, southern populations remain resident year-round. Same partial migration pattern as common buckeye and red admiral.
Closely related to the cosmopolitan painted lady (Vanessa cardui) — both species are members of genus Vanessa, the 'lady' brushfoot butterflies.
Larvae feed on COMMON GARDEN HERBS — parsley, dill, fennel, carrot tops, celery — making essentially every backyard herb garden a potential breeding site.
Caterpillars have a distinctive OSMETERIUM — a forked orange organ that protrudes from a slit behind the head when threatened, releasing a foul-smelling chemical that deters predators.
OFFICIAL STATE BUTTERFLY of Oklahoma and New Jersey — one of the cultural icons of North American backyard gardens.
Females are darker than males with increased blue dusting on hindwings — partial BATESIAN MIMICRY of the toxic pipevine swallowtail in the female sex.
