對於所有那些誰投了棄權票 (我要承擔一些讀者一定知道我們的神秘毛蟲的身份, 但都懶得回應), 這裡就是答案 (突破後).
The caterpillar is Hemileuca maia (蠶蛾). Those spines do indeed give a pretty nasty sting. Only a tiny bit superficially similar to a gypsy moth.
和, for those of you paying attention: The Genius of the Press before last also needed an answer, which is almost too obvious to state. Butterflies do not eat leaves, and especially monarchs do not eat eucalyptus. The reporter must have failed second grade (and subsequently hired at the Santa Barbara News Press).
holy crap.