2. Ceresium unicolor (Fabricius) .
Sa.perda unicolor Fabricius, Mant. Ins. 1: 147, 1787.
Ceresium imicolor (Fabricius) Aurivillius, Insects of Samoa 4 (2): 138, 1928.
Blair, B. P. Bishop Mus., Bull 114: 274, 1935.
Piti, June 10, 15, July 9, 12, 19, 22, 23, 24, Sept. 14, 22, Oct. 12, 19, Nov. 25, Swezey; Mt. Alifan, June 27, Usinger; Barrigada, July 22, reared from Intsia bijuga, Swezey ; Fadian, Sept. 18, Swezey; Sumay, Sept. 28, Swezey; Merizo, Oct. 2, Swezey. Fullaway, 1911.
This species is widely distributed in the Pacific. In Hawaii it has been known as Ceresium simplex . We found it very abundant in 1936, breeding in dead branches or fallen trees of several kinds. The beetles often came to light.