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Black-margined loosestrife beetle - Galerucella calmariensi
This appears to be post-mating behavior in which the male stays mounted on the female to guard her (and his investment). Sounds romantic, except that he also appears to be pooping on her.
Habitat: On loosestrife; mesic forest
"Galerucella calmariensis" is a species of leaf beetle in the family Chrysomelidae. It is commonly known as the black-margined loosestrife beetle and is native to Europe and Asia where both adults and larvae feed on purple loosestrife. It has been introduced in North America as a biological control agent for purple loosestrife.
Similar species: Beetles
By Christine Young
Attribution Non-Commercial
Uploaded Oct 4, 2023. Captured May 27, 2022 09:31 in 3280 Franklin Ave, Millbrook, NY 12545, USA.
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