Which of the following statements correctly pairs each genus with its defining behavior?

• A. Aedes – day-biting; Anopheles – night-time biting; Culex – crepuscular/nocturnal.
• B. Aedes – night-biting; Anopheles – day-biting; Culex – diurnal.
• C. Aedes – crepuscular; Anopheles – diurnal; Culex – nocturnal.
• D. Aedes – day-biting; Anopheles – crepuscular; Culex – diurnal.

Answer: (A)

Knowing when each mosquito genus tends to bite is essential for choosing protective measures and timing interventions. Aedes mosquitoes are active during the day, so they are best described as day-biting. Anopheles mosquitoes bite at night, making night-time protection particularly important. Culex mosquitoes commonly bite at crepuscular times—around dusk and dawn—with some nocturnal activity as well, so their behavior is best described as crepuscular. The pairing of Aedes with day-biting, Anopheles with night-time biting, and Culex with crepuscular fits these general patterns, whereas the other options assign conflicting biting times to the genera.