Which order is known as true bugs and is described as having gradual development with piercing-sucking mouthparts and two membranous wings?

• A. Hemiptera
• B. Lepidoptera
• C. Diptera
• D. Coleoptera

Answer: (A)

The main idea is recognizing true bugs, an order defined by incomplete metamorphosis and piercing-sucking mouthparts. In these insects, development is gradual—the young nymphs resemble small adults and there’s no pupal stage. Their mouths are adapted for piercing and sucking plant sap or animal fluids. When wings are present, there are two pairs, with the front wings typically partially thickened (a hemelytra look) and the back wings membranous. This combination of gradual development, piercing-sucking mouthparts, and the two-wing arrangement fits the true bugs, the order Hemiptera. Other insect orders don’t share this exact mix: Lepidoptera have scaled wings and complete metamorphosis; Diptera have one pair of wings and halteres; Coleoptera have hardened front wings (elytra) and chewing mouthparts.