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Photo#125909
Red Milkweed Beetle - Tetraopes tetrophthalmus

Red Milkweed Beetle - Tetraopes tetrophthalmus
Ottawa, Ontario, Canada
July 5, 2007
Size: approx. 1.2 cm
I love finding these guys. They entertain me with their squeaking noises when they are disturbed. They make the squeaking noise by rubbing the back portion of their head with their prothorax (ie. cranio-prothoracic stridulation haha). Catch one and watch closely!

a mouthful!
"Cranio-prothoracic stridulation"? Wow. I think I like "squeaking" better! hee hee!

But really... I have lots of these fellows in my milkweeds, and I never knew they "stridulated" ( :D ) . I think I have to go catch one and see for myself.

Fun, and fascinating! Thanks!

Moved

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