Possible mosquito bite; insect not visible

Cannot determine the insect’s habitat from a skin reaction. Mosquitoes commonly occur near vegetation, standing water, and human dwellings.

Female mosquitoes consume blood to develop eggs; both sexes feed primarily on plant nectar and other sugars.

Mosquitoes locate hosts using carbon dioxide, body heat, and odors, then make brief punctures that can produce itchy, reddened welts. Identification requires seeing the insect or obtaining a clearer image.

Bites may cause itching, swelling, or allergic reactions; some mosquito species transmit diseases such as West Nile, dengue, malaria, or chikungunya. Adults also pollinate plants and serve as prey for fish, birds, bats, and other insects.