Anophelinae larvae lie parallel to the water surface. Which option reflects this?

Anophelinae larvae lie parallel to the water surface. Which option reflects this?

• A. Parallel to water surface
• B. Perpendicular to water surface
• C. On the water surface at a 90-degree angle
• D. Vertical to the water surface

Answer: (A)

Anophelinae larvae float just beneath the water surface with their bodies held horizontal, lying parallel to the surface. This position fits their breathing and feeding habits: they don’t rely on a long siphon to reach air, so they stay close to the surface and feed while their body remains parallel. Other mosquito larvae often hang down or angle away from the surface because they have a longer siphon or different breathing needs, pulling them into a more vertical orientation. So describing them as parallel to the water surface best matches their typical resting posture.

Anophelinae larvae float just beneath the water surface with their bodies held horizontal, lying parallel to the surface. This position fits their breathing and feeding habits: they don’t rely on a long siphon to reach air, so they stay close to the surface and feed while their body remains parallel. Other mosquito larvae often hang down or angle away from the surface because they have a longer siphon or different breathing needs, pulling them into a more vertical orientation. So describing them as parallel to the water surface best matches their typical resting posture.