How many generations per year do grasshoppers typically have?

• A. One generation per year
• B. Two generations per year
• C. Three generations per year
• D. No fixed pattern

Answer: (A)

Grasshoppers in temperate rangeland environments are univoltine, meaning they complete one generation per year. Their life cycle is aligned with a single growing season: eggs are laid in late summer and often overwinter, hatch as conditions warm, nymphs molt through several instars, and adults reproduce before conditions become harsh again. This yearly schedule is reinforced by diapause in the eggs, which helps synchronize emergence with favorable weather. While some species in warmer or exceptionally favorable conditions can have additional generations, the typical pattern in standard rangeland contexts is one generation per year.