What type of environments do biting midges' larvae generally inhabit?

Biting midges' larvae typically inhabit aquatic or semi-aquatic environments, which is central to their life cycle. The larvae usually thrive in moist habitats like muddy areas, marshes, ponds, or along the edges of slow-moving streams. These environments provide the necessary conditions for their growth and development, offering both a source of food and protection from predators.

In contrast, environments like dry soil, open fields, or urban areas do not support the aquatic needs of biting midge larvae. While adult midges may be found in a variety of settings, their larvae critically depend on water bodies or similar moist conditions for survival. This relationship emphasizes the specific ecological requirements of biting midges during their developmental stages, making aquatic or semi-aquatic habitats the correct answer.