Takagi, S. 2001 Four gall-inducing eriococcids, with notes on dipterocarp-associated gall-inhabiting coccoids (Homoptera: Coccoidea: Eriococcidae and Beesoniidae).. Insecta Matsumurana (New Series) 58: 51-113.

Notes: Gallacoccus secundus, G. spinigalla, G. heckrothi, spp. nov. and Echinogalla pustulata, gen. et sp. nov., are described. Hosts are given.