Abstract
A. (Coelodiazesis) plumbeus, Hal.The life-history of this species has recently been fully described by Christophers (Ind. Jl. Med. Res., iii, Jan. 1916, p. 489) from larvae obtained in tree-holes in the neighbourhood of Simla. It is somewhat surprising that a species of Anopheles should have such a wide range, especially since tree-breeding mosquitos are usually more local in their distribution than other kinds. I believe, however, that Christophers was perfectly correct in his conclusion that A. barianensis, James, is the same species as A. plumbeus, Hal.