Raman, A., & Takagi, S. 1992 Galls induced on Hopea ponga (Dipterocarpaceae) in southern India and the gall-maker belonging to the Beesoniidae (Homoptera: Coccoidea).. Insecta Matsumurana (n.s. 47): 1-32.

Notes: Abstract: Spherical echinate galls are induced by Mangalorea hopeae on Hopea ponga in leaf axils through modification of the vegetative bud which develops into a massive columella: differentiation and development of leaf primordia are completely arrested, but the surface intials of the columella develop into multicellular echinate appendages; each mature gall contains only one female, whereas a number of male insects occur on their maternal gall, occupying spaces between echinate appendages. Abstract: Spherical echinate galls are induced by Mangalorea hopeae on Hopea ponga in leaf axils through modification of the vegetative bud which develops into a massive columella: differentiation and development of leaf primordia are completely arrested, but the surface intials of the columella develop into multicellular echinate appendages; each mature gall contains only one female, whereas a number of male insects occur on their maternal gall, occupying spaces between echinate appendages. Keywords: biological control.