How does the head and thorax color compare in winged (alate) yellow aphids?
Answer
May appear slightly darker or browner
When yellow aphids develop into the winged form, known as alates, they still generally retain the characteristic yellow body coloration. However, a distinction noted in their morphology is that the head and thorax regions of these flying individuals often present with a slightly darker or browner pigmentation when compared directly to their wingless (apterous) counterparts, which typically maintain a more uniform yellow across the whole body.
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