The new subgenus Bruceharrisonius is described and principal features of all known stages areprovided for separating it from other subgenera of genus Ochlerotatus. The female, male, female and malegenitalia, pupa, and 4th-stage larva of the type species, Oc. greenii, are described in detail. Eight species (Oc.alektorovi, Oc. aureostriatus, Oc. doonii, Oc. christophersi, Oc. greenii, Oc. hurlbuti, Oc. okinawanus, and Oc.taiwanus) currently are recognized in the subgenus.