Muthukrishnan, T.S., Nagaraja Rao, K.R., Subramanian, T.R., Janaki, I.P., & Abraham, E.V. 1958 Brief notes on a few crop pests noted for the first time in Madras.. Madras Agricultural Journal 45: 363-364.

Notes: Geococcus coffeae and G. citrinus are among those listed.