Which species would be expected to breed in stagnant, polluted water?

The correct answer is B, Culex p. quinquefasciatus. This species, also known as the southern house mosquito, has a strong preference for breeding in stagnant water that is often polluted and rich in organic matter. This habitat supports their reproductive cycle since the larvae thrive in environments with lower water quality and increased nutrient levels, which are typical of polluted water bodies.

Culex p. quinquefasciatus is frequently found in urban areas where stagnant water can collect in containers, drains, and areas of poor drainage, making it well-adapted to breed where conditions may not be ideal for other mosquito species. The breeding habits of this mosquito make it a significant vector for diseases, as they often inhabit areas where humans and activities are prevalent.

In contrast, while the other species listed may breed in standing water, they typically prefer cleaner water sources or specific environmental conditions. Aedes aegypti, for example, tends to favor water that is fresher and more pristine, often breeding in artificial containers such as flower pots and discarded tires. Aedes sollicitans is more commonly associated with brackish water habitats and coastal regions, while Coquillettidia perturbans often prefers wetlands or areas with abundant vegetation. Thus