Final answer:
Face flies and horn flies lay their eggs on manure, providing the necessary nutrients for their larvae. Hawthorn flies and parasitoid wasps are examples of insect species with different egg-laying preferences and reproductive strategies.
Step-by-step explanation:
The face flies and horn flies prefer to lay their eggs in specific environments that are conducive to the survival and growth of their larvae. While not explicitly stated in the reference materials, face flies tend to lay their eggs on fresh manure, whereas horn flies lay their eggs on undisturbed cattle manure. These environments provide the necessary nutrients for the larvae to thrive. In contrast, other species of flies have different preferences for egg-laying; for instance, hawthorn flies lay their eggs in hawthorn trees and their larvae feed on hawthorn fruits. Similarly, female parasitoid wasps lay their eggs inside the bodies of caterpillars, which offers a food source for their offspring upon hatching.