In each case, a section of marsh with lower than normal salinity was created, which in turn, produced more favorable Ae. The degree of dry-down in the habitat where Ae. dorsalis larvae were found may also be a possible answer to the question. The tidally blocked areas where Ae. Identification of adult females can be done with relative ease. A key characteristic to look for is pale bands on the tarsus that extend across the joints of the tarsal segments.
Larval collection is slightly more difficult.
Later instar larvae are easily driven to the bottom of a pool where they often remain still for an extended period. Field identification of larvae is considerably more difficult and all suspect samples should be brought back for closer examination. However, if found with Ae. Findings to date indicate that two distinct larval habitats appear most favorable for collection. In coastal areas, look for a high salt marsh area in which the normal tidal flow has somehow been interrupted.