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The red lines represent the body size measures for morphological analysis of populations of Protonectarina sylveirae: A. Head length (HL) and head width (HW); B. Mesoscutum width (MW); C. Mesosoma length (MeL) and mesosoma height (MeH); D. 2° metasomal terga length (T2L) and 2° metasomal terga width (T2W); and E. Hind femur length (HFL). Pictures are of a worker from Mossoró, Rio Grande do Norte, Brazil.
