Two sex-linked mutations in Culex tarsalis

Two sex-linked mutations are described for the Culex tarsalis mosquito. Bleached ocelli (bloc) affects the pigment in the larval and pupal ocelli, and fringe (fr) puts in disarray the costal and vein scales on the adult wing. Their importance is discussed in relation to the basic genetics for this species and the accumulation of multiple-marker stocks needed for the analysis of genetic systems that show potential for control.