Aedes triseriatus Reproduced from Wing Beats of the AMCA, the official publication of the Florida Mosquito Control Association. The eastern treehole mosquito, Aedes triseriatus. It just isn't all that abundant in most places in its range. Aedes triseriatus never drew much attention until it was found to be the vector of La Crosse encephalitis virus. La Crosse encephalitis is primarily a problem of children in the upper Midwest and east.
Symptoms can range from a mild flu-like illness to seizures and coma.
Ohio leads the nation in number of cases, followed by Wisconsin, Minnesota, Illinois and Indiana. Geographic Distribution Aedes triseriatus occurs from Florida, north to Ontario and Quebec, and west to the Dakotas and Texas. From north to south, the species experiences quite a range of temperatures and conditions, and it has successfully adapted to local requirements. The tarsi and proboscis are uniformly dark. Silvery scales cover the sides of the thorax and are the most diagnostic characteristic.