Ultrastructures of Vespula structor (Smith) (scanning electron micrographs). A Left half of labrum, ventral view, showing minute setae and conical papillae B spiracle C labial palpi with four apical sensilla D maxillary palp with three apical sensilla (sometimes four), galea with two apical sensilla.

  Part of: Tan Q-Q, Tan J-L, Zhang R-N, Tian X-X, Jian J-K (2018) Discovery of the nest of the yellow jacket Vespula structor (Smith) (Hymenoptera, Vespidae) from China with description of its immature stages. Journal of Hymenoptera Research 67: 103-120. https://doi.org/10.3897/jhr.67.30059