Montana Mosquito Surveillance
Aedes spencerii spencerii
Species: Aedes spencerii spencerii
This species has been reported to be migrate towards city and town lights and is a serious pest of livestock and humans when present in high numbers. It is fairly common but is not known to be involved in disease transmission.
Ae. spencerii overwinters in the egg stage. Larval habitats include barrow pits and depressions that contain water from melting snow and low areas filled with seepage from runoff.
Pointed abdomen, no leg banding, wing veins alternating dark and pale scales, abdominal terga with a dorsal median longitudinal stripe. Similar to Ae. spencerii idahoensis.