Figure 23 from: Goldstein PZ, Nelson MW (2017) Two psammophilic noctuids newly associated with beach plum, Prunus maritima (Rosaceae): The Dune Noctuid (Sympistis riparia) and Coastal Heathland Cutworm (Abagrotis benjamini) in Northeastern North America (Lepidoptera, Noctuidae). ZooKeys 661: 61-89. https://doi.org/10.3897/zookeys.661.10867

Figure 23 - Everted vesica of Abagrotis benjamini, Aquinnah, MA. a USNM dissection #148029 b Everted vesica of Abagrotis benjamini, Dartmouth, MA. USNM dissection #148067. Cf. Figs 9d (larva), 11(adult), and 18a, b (adult).