2,526wild facts you can’t un-know.

Caterpillars are dramatic — bright black with white spots and white-base spines, feeding gregariously on stinging nettle.

Silver-washed fritillary is the largest fritillary butterfly in Europe — wingspan 7-8 cm with brilliant orange-and-black wings.

Females lay eggs on TREE BARK 1-2 m up oak or beech trunks — NOT on the host plant. Caterpillars must navigate down the tree to find violets in spring.

First-instar caterpillars enter winter diapause IMMEDIATELY after hatching — without ever feeding. They survive autumn and winter on egg-yolk reserves.

Males perform an elaborate looping aerial dance — repeatedly looping up and over the flying female as she zigzags beneath. One of the most-studied butterfly courtship behaviors.

The 'silver-washed' name comes from the broad transverse silver bands and streaks on the underside of the hindwings — distinctive at rest.

Snouted termite soldiers FIRE a stream of sticky, irritating defensive resin from the snout tip at attackers from up to 1 cm away.

Soldiers have completely LOST functional mandibles — they cannot bite, cannot even feed themselves. They are fed by workers throughout life.

The defensive resin sticks to attackers, irritates cuticle and membranes, and (against ants) immobilizes them by gluing the legs together.

Nasutitermes build dramatic 'carton' nests on tree trunks made of chewed wood and saliva — can grow to 50+ cm diameter.

Genus Nasutitermes contains about 250 species across the Neotropics, Africa, Australasia, and parts of Asia — all sharing the snout-spray soldier morphology.

Male common blue butterflies have brilliant iridescent sky-blue wings — among the most striking small butterflies in Europe.

About 75% of Lycaenidae species worldwide have ant associations — caterpillars produce honeydew that ants drink, in exchange ants protect the caterpillar from parasitoids.

The related Maculinea 'large blue' butterflies are SOCIAL PARASITES of Myrmica ants — caterpillars are carried into ant nests and live as colony members while consuming ant brood.

The British Maculinea arion was famously extirpated, then successfully reintroduced after the Maculinea-Myrmica-Thymus ecology was understood.

Family Lycaenidae contains about 6,000 species worldwide — second-most-diverse butterfly family after Nymphalidae.

The manna cicada is the cicada that defined the summer soundscape of ancient Greek and Roman antiquity — written about by Plato, Aristotle, Hesiod, Sappho, and Virgil.

The Greek word for cicada (τέττιξ tettix) was used in poetry as a metaphor for inspired song — and gave Latin/Romans the term 'cicada' that became the genus name.

The species name 'orni' refers to the manna ash tree (Fraxinus ornus) — the same tree historically tapped for 'manna' sap resin used as a Mediterranean sweetener.

Adult male choruses reach over 100 dB at close range — among the most intense temperate insect choruses on Earth.

Nymphs spend 4-6 years underground feeding on tree root xylem sap before emerging to molt into adults — a similar long underground larval stage to North American annual cicadas.

Firebugs aggregate by the hundreds to thousands at the base of lime trees in spring — bright red-and-black warning-colored clusters that are entirely benign.

The 1966 Sláma & Williams discovery of juvenile hormone analogs in plant defense — using firebug as the model — founded the entire field of hormone-based pest control.

American paper towels (containing American balsam fir wood) accidentally arrested firebug metamorphosis in Harvard lab cultures — leading directly to the 'paper factor' discovery.

Modern juvenoid pesticides (methoprene, hydroprene, pyriproxyfen) used against mosquitoes, fleas, and stored-product pests trace directly to the firebug discovery.

The bright red-and-black coloration is shared with the broader Müllerian mimicry community of milkweed bugs, boxelder bugs, and other warning-colored insects.

Dark-winged fungus gnats are the small dark flies that hover around houseplants and emerge from potting soil — among the most-encountered indoor pest insects worldwide.

Larvae feed on fungi and decaying organic matter in soil, but in dense populations also damage living plant roots — causing root rot in greenhouse and houseplant production.

The New Zealand glowworm (Arachnocampa luminosa) is a fungus gnat — larvae hang from cave ceilings producing blue light to attract prey. Same family as the houseplant pest.

The Waitomo Caves of New Zealand are famous for thousands of glowworm larvae illuminating the cave ceilings — one of the most-visited natural-history attractions in the country.