What are general characteristics of Culiseta?

• A. They feed on birds; diurnal biters; do not overwinter
• B. They feed on mammals and humans, nocturnal biters, overwinter as adults
• C. They feed on plants and do not bite
• D. They are exclusively freshwater breeders in streams

Answer: (B)

Culiseta mosquitoes are known for feeding on mammals, including humans, and they tend to bite at night. They also have a tendency to survive winter in the adult stage in temperate regions, resuming activity when temperatures rise. This combination—nocturnal biting, an emphasis on mammalian/human hosts, and overwintering as adults—best fits the general behavior of this genus. The other descriptions don’t align with these broad patterns, such as implying daytime feeding, plant-only feeding, or exclusive breeding in streams.