Agrostia longicerca, Conle & Hennemann & Bellanger & Lelong & Jourdan & Valero, 2020

Conle, Oskar V., Hennemann, Frank H., Bellanger, Yannick, Lelong, Philippe, Jourdan, Toni & Valero, Pablo, 2020, Studies on neotropical Phasmatodea XX: A new genus and 16 new species from French Guiana, Zootaxa 4814 (1), pp. 1-136 : 45

Key to the species of Agrostia from French Guiana:

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1. Subgenital plate slightly projecting over posterior margin of abdominal segment VIII........................ A. cinerea - Subgenital plate hardly reaching posterior margin of anal segment............................... A. longicerca n. sp.

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1. Cerci at best as long as anal segment; poculum hardly projecting over posterior margin of abdominal segment IX...................................................................................................... A. cinerea

- Cerci at least 1.5x longer than anal segment; poculum only reaching anterior margin of anal segment.... A. longicerca n. sp.