Field Guide Descriptions: Beadle and Leckie (2012) | Online Photographs: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLD | Technical Description, Adults: Forbes (1954) | Technical Description, Immature Stages: Wagner et al. (2011) | |
Adult Markings: This large Noctuid should present no difficulties in identification based on the accompanying pictures. The large reniform and fuscous hindwings separate it from other large Noctuids likely to be encountered at these altitudes. |
Adult Structural Features: Both male and female genitalia are quite distinct. In the male the vesica is extremely long with a distinct cornutus while in the female the appendix bursae is twisted. |
Structural photos |
![](photos_structures/2016/tn10301.00_1455997822.jpg) Male reproductive structures |
![](photos_structures/2016/tn10301.00_1455997839.jpg) Aedeagus |
![](photos_structures/2016/tn10301.00_1455997861.jpg) Abdominal pelt |
![](photos_structures/2016/tn10301.00_1455997883.jpg) Female reproductive structures |
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Adult ID Requirements: Identifiable from good quality photos of unworn specimens. |
Immatures and Development: The bright green or yellow-green caterpillar is reasonably distinct (see illustrations and description in Wagner et al., 2011). |
Larvae ID Requirements: Identifiable from good quality photos, especially where associated with known host plants. |