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Posts tagged “Ladybugs

Ladybug Metamorphosis

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Much to my delight, many of you knew that yesterday’s mystery photo was none other than the larval stage of a ladybug (referred to as a “ladybird beetle” by entomologists, as it is not a true bug, but a beetle). I remember when I first learned what the different stages of a ladybug’s life cycle looked like – I couldn’t believe that this miniature alligator-like creature turned into a sweet little ladybug. Approximately 88% of all insects pass through four separate stages (complete metamorphosis: egg, larva, pupa, adult) by the time they reach adulthood. Ladybugs are one of these insects. The first three stages of a ladybug’s life each last anywhere from 7 to 21 days, depending on weather and food supply. An adult ladybug lives for 3 to 9 months. The larvae of all ladybug species (there are approximately 450 in New England) have a similar appearance. Yesterday’s larva, as well as today’s pupa (and accompanying shed larval skin) and adult, are  Multicolored Asian Ladybugs.


Ladybeetles Mating

Many ladybug beetles (ladybeetles) mate in the spring, but some species do so in late summer and fall.  Each species of ladybeetle has its own pheromones for attracting a mate.  Mating can last up to two hours, with the male climbing up and holding onto the female’s outer wings, while intermittently vibrating rapidly (making photographing them somewhat challenging). Their eggs hatch in 4 to 10 days, and within two weeks the larvae have matured into adults.   Most of these aphid-eating predators will spend the winter hibernating, becoming active in the spring, when aphids are available once again.