Once a pest has been correctly identified, its genus and species name can provide a link to valuable indications of its ecology, biology and life history that are critical for developing control strategies. Importantly, this link should exist even when the pest was known under other names (synonyms), or was not considered a pest at all (National Research Council, 1968). Many examples have shown that incorrect identification or classification of a pest has led to fruitless searches for biocontrol agents in the native range, incorrect assignments as disease vectors, and costly, yet misdirected, suppression measures. As new approaches for delimiting species based on molecular information become more widely used, the process of correctly identifying a species has become even more complex. Fortunately, there are good systematic frameworks and nomenclatural systems that are able to cope with these challenges. This paper reviews challenges associated with classification and identification within the Bemisia tabaci (Gennadius) species complex. These pests and the viruses they transmit have emerged in the past few decades as among the most damaging to food and fibre crops globally (Varma & Malathi, 2003; Pimental et al., 2005; Seal et al., 2006), especially in sub-Saharan Africa (SSA). The systematics of the B. tabaci species group has been a highly debated topic for years (Boykin, 2014). Putative species are indistinguishable morphologically, so other biological data have been collected to investigate the species in the complex. Based on genetic differences (Colvin et al., 2004; Sseruwagi et al., 2005; Boykin et al., 2007; Boykin et al., 2013; Hsieh et al., 2014) and mating incompatibility (Colvin et al., 2004; Liu et al., 2007; Xu et al., 2010), B. tabaci is now recognised as a species complex that consists of at least 34 putative species (Boykin et al., 2012). The rapid discovery of significant species diversity has led to many changes in the informal names used over the last 10 years (Boykin, 2014), creating confusion in the literature. The paper proposes seven steps to create a robust naming system for the African B. tabaci species complex.