Where would house fly maggots typically not be found?

House fly maggots, which are the larval stage of house flies, are typically found in decaying organic matter where they can feed and grow. Common habitats for these maggots include decomposing food waste in compost bins, trash cans filled with organic garbage, and animal bedding that may harbor waste.

In contrast, mud near a stream bank is not an ideal environment for house fly larvae. While they thrive in moist and decomposing organic materials, the specific habitat of mud along a stream does not provide the necessary food sources or conditions that would support the development of young maggots. House fly maggots require a nutrient-rich medium, such as rotting food or manure, making mud near a stream bank an unlikely location for their presence. Thus, the correct answer highlights a scenario where house fly maggots would typically not be found.