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large beetle larva (40mm) - Phengodes

large beetle larva (40mm) - Phengodes
Still Pond, Kent County, Maryland, USA
June 30, 2011
Size: 40mm
When disturbed it curls up like a millipede.

Also, no sign of luminescence in my specimen.

life stage
I checked the eyes: only simple (no compound) so presumably this is a larva. I will try to rear it so I can see what an adult female looks like. It must certainly be a last instar, as my earlier estimate of length is short; it is more like 50mm (she had curled up tightly by the time I got my measuring stick out after taking the photo).

The coloration certainly seems aposematic, which makes me wonder if it doesn't somehow incorporate some of the defensive chemicals of its millipede prey (even though Tom Eisner's book would indicate otherwise for the species he studied)

Moved from ID Request.


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