Two-Faced Insect is Both Sheep and Wolf in Sheep’s Clothing

I’m laughing.

I’m laughing because I’m reading a paper about an aphid that’s occasionally a vampire—more on this later—and the caption for Figure 1 begins: “Simplified diagram of the biannual life cycle of P. Cimiciformis”. And this is Figure 1:

Simplified, indeed.

This is the absurdly complicated life cycle of the aphid Paracletus cimiciformis which includes at least 9 different bodies (or morphs), two host plants, and at least two full years. Bear in mind that aside from one tiny part of the cycle (bottom-left in the diagram), this creature reproduces asexually—the females give birth to genetically identical clones of themselves, without any need for males.

Let’s start at the top-left. In summer, the aphids live on the terebinth tree, where they trigger the

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