Two-spot Ladybug
Adalia bipunctata
Status: Endangered due to habitat loss and changes in climate, ladybugs are threatened with extinction. Ladybugs are particularly sensitive to temperature changes, and will die from dehydration if they become overheated. Like most animals, the primary threat to ladybugs is the destruction of their habitat. For a while, the 7 spot ladybug was endanger by introduction of invasive beetle species, but it has since recovered. Two-spot ladybug is still endangered.
An 18th century English nursery rhyme about ladybugs:
Ladybird, ladybird, fly away home, Your house is on fire, Your children shall burn!
There are many superstitions linked to this helpful and brightly colored little beetle, and almost all of them look upon ladybugs as omens of fortune. To an agrarian society before the advent of chemical pesticides, the ladybug was (and is) the farmer's best ally, protecting the crops from insects who might have a devastating impact on harvests. As such, in many cultures it is considered unlucky to kill a ladybug, even if accidentally. Farmers sometimes used smoke to rid plants of pests, and this song might have been used to gently urge the friendly ladybirds to depart before the smoke.
References:
Roud Folk Song Index #16215
I. Opie and P. Opie, The Oxford Dictionary of Nursery Rhymes (Oxford University Press, 2nd edn, 1997)
Stuart, Claire. "Truth Behind the Ladybug and the Childhood Rhyme". The Journal, Oct 2014. https://www.journal-news.net/life/home-and-garden/truth-behind-the-ladybug-and-the-childhood-rhyme/article_55498687-26b7-56cf-8aca-b3c863904969.html