Where do pupal stages of thrips occur?

Where do pupal stages of thrips occur?

• A. In the soil.
• B. On flower petals.
• C. On leaves.
• D. Inside stems.

Answer: (A)

Thrips have a nonfeeding pupal stage that needs a protected, moist environment to complete metamorphosis. The soil provides the right mix of shelter, humidity, and relative stability, so the pupal instars are typically found there, often in soil or leaf litter. Feeding and development on plant surfaces happen during the earlier larval/nymph stages, which is why places like flower petals or leaves are where you’d find feeding activity rather than pupation. Inside stems is less typical for the pupal stage in many thrips species, since the pupa needs that protective, exposed microhabitat that soil or debris offers. So the pupal stages occur in the soil.

Thrips have a nonfeeding pupal stage that needs a protected, moist environment to complete metamorphosis. The soil provides the right mix of shelter, humidity, and relative stability, so the pupal instars are typically found there, often in soil or leaf litter. Feeding and development on plant surfaces happen during the earlier larval/nymph stages, which is why places like flower petals or leaves are where you’d find feeding activity rather than pupation. Inside stems is less typical for the pupal stage in many thrips species, since the pupa needs that protective, exposed microhabitat that soil or debris offers. So the pupal stages occur in the soil.