B. S. Bhumannavar and C. Balasubramanian, “Food Consumption and Utilization by the Mexican Beetle, <I>Zygogramlna bicolorata</I> Pallister (Coleoptera:Chrysomelidae) on <I>Parthenium hysterophorus</I> Linnaeus”, JBC, vol. 12, no. 1, pp. 19–23, Jan. 1998.