INTRODUCTION Many flowering plants depend on animal pollination, which involves pollen from the same species of plant (i.e., conspecific pollen) being transferred from male to female flower parts in order to produce viable seed (Faegri & Van Der Pijl, 1979; MacPhail et al., 2018). Insect pollinators are by far the most common animal pollen transport vector, yet the quality and quantity of conspecific pollen transferred vary among insect taxa (Bischoff et al., 2013; Fang & Huang, 2013).