Doug Wechsler / Oleander aphid (Aphis nerii) alates and nymphs on Common milkweed (Asclepias syriaca) leaf, Pennsylvania, USA. July.
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Doug Wechsler / Red milkweed beetle (Tetraopes tetrophthalmus) mating on Common milkweed (Asclepias syriaca), Pennsylvania, Philadelphia, USA. July.
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John Cancalosi / Red milkweed beetles (Tetraopes tetrophthalmus) three on Common milkweed (Asclepias syriaca) mating pair and interloper, Maryland, USA.