Which of the following insects would not have a long, thin proboscis?

The house fly is the correct answer because it does not possess a long, thin proboscis. Instead, house flies have a relatively short, spongy mouthpart known as a labella, which allows them to lap up liquids, particularly sugary substances. This contrasts with insects like butterflies and hummingbird moths, which have long and slender proboscises designed for reaching nectar in flowers. Bees also have a long tongue adapted for nectar extraction, but it is not as elongated as that of butterflies. Understanding the mouthpart structure of different insects is essential for comprehending their feeding habits and ecological roles, as these adaptations influence the types of food they can access and their interactions with plants.