Figure 4 in Diversity of the genus Agrilus Curtis (Coleoptera: Buprestidae) in South America

Figure 4. Trend related to the progress on the study of the genus Agrilus over the past twenty years. It is evident that the highest activity occurred in the early 1900s due to the contributions of Kerremans and Obenberger. There is a substantial drop in activity afterwards before a renewal of research activity beginning in 2000.