Haemagogus is a genus of mosquitoes primarily found in tropical and subtropical regions of the Americas. They are known for their role as vectors in transmitting various viruses, including yellow fever and Zika virus. These mosquitoes typically breed in tree holes and other natural water sources, preferring shaded environments. The adult Haemagogus mosquitoes are characterized by their dark coloration and distinctive markings. They are most active during the day, particularly in the early morning and late afternoon. Understanding their behavior and habitat is crucial for controlling the spread of diseases they may carry.