Trochoideus desjardinsii Guerin,

Rev. Zool., 22, 1838.

Coquerel, Soc. Ent. France, Ann. III, 7: 256, pl. 6, fig. 2, 1859.

Yona, April 29, among dead leaves, Bryan; Mt. Tenjo, May 3, in dead rachis of Angiopteris evecta , Swezey; Dededo, May 11, in rotten log, Swezey; Tarague, May 17, under coconut husk on ground, Swezey; Mt. Alifan, May 26, in log, Usinger; Agat, May 31, under bark, Usinger; Yigo, Oct. 21, in rbtten banana stem, Nov. 1. 3,among dead papaya leaves, Swezey; Fullaway, 1911.

This peculiar beetle occurs in South Asia, Mauritius, Madagascar, Reunion, New Guinea, Philippines. We found it common in Guam and widely distributed.