The following spp. were collected in the Tennessee Valley during 1934, 1935 and 1936: Anopheles punctipennis, crucians, quad-rimaculatus, barberi, walkeri; Aedes dupreei, hirsuteron, thi-baulti, canadensis, atropalpus, triseriatus, vexans, aegypti; Culex peccator, inhibitator, salinarius, restuans, quinquejasci- atus, pipiens, apicalis; Theobaldia melanura, inornata; Psorophora howardi, ciliata, jerox, varipes, cyanescens, discolor, columbiae, signipennis; Mansonia perturbans; Uranotaenia sapphirina; Orthopodomyia alba, signijera; and Megarhinus septentrionalis. Notes on collections are given for each of the species. Culex pipiens was found as far S as 34[degree] 53'' N latitude.