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#caterpillars — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #caterpillars, aggregated by home.social.

  1. My best-guess ID for this #caterpillar, encountered yesterday afternoon on the sidewalk, is the Yellow Woolly Bear, larva of the Virginia Tiger Moth (Spilosoma virginica). This is based on the lazy method of asking AI to identify the photo, plus looking it up in an actual book, my trusty Peterson's Field Guide to the #Moths by Beadle and Leckie (2012 edition).

    #caterpillar #moths #insects #lepidoptera #biology #biodiversity #nature #entomology #caterpillars #naturephotography

  2. Here's a neat observation on #iNaturalistNZ. iNat user "catchwords" took an excellent set of photos of a shining cuckoo, pīpīwharauroa, in the Coromandel, NZ, eating caterpillars of magpie moths, mōkarakara.

    No other bird in NZ eats these caterpillars, as the caterpillars sequester the poisons from the groundsel plants they eat, similar to what monarchs do with milkweeds. The stiff hairs on the caterpillars are also known to pierce the lining of bird gizzards.

    Shining cuckoos typically squeeze out the innards of the caterpillars and eat those and then discard the skin.

    The birds can also eat cinnabar moth caterpillars in NZ, which were introduced as a biocontrol agent for ragwort. Like magpie moths, cinnabar moths sequester the toxic alkaloids in the ragwort they feed on. Shining cuckoos don't care.

    Many birds in the family Cuculidae, the true cuckoos and koels, are known to eat hairy and toxic caterpillars that other birds avoid.

    inaturalist.nz/observations/25

    #birds #iNaturalist #Lepidoptera #caterpillars #EcologicalInteractions #nz #ecology #nature #cuckoos