species

Acrotylus insubricus (Scopoli, 1786)

Bey-Bienko, G.Y. & Mistshenko, L. (1951) Keys to the Fauna of the U.S.S.R. [1964 English translation no. 40]. In Locusts and Grasshoppers of the U.S.S.R. and Adjacent Countries. Zoological Inst. of the U.S.S.R. Academy of Sciences, Moscow/Leningrad. Vol. 2, 385–667 [1–291]. Available at http://www.biodiversitylibrary.org/item/224097#page/7/mode/1up
Hemp, C. & Rowell, C.H.F. (2020) In Jago's Grasshoppers of East and North East Africa. Volume 4. Acrididae: Euryphyminae, Cyrtacanthacridinae, Oedipodinae. 232 pp.

Johnston, H.B. (1956) In Annotated catalogue of African grasshoppers. The Cambridge University Press, Cambridge. 833 pp.
Scopoli, J.A. (1786) In Delicidae florae et faunae insubricae: Vol. pars I. Tinici. 85 pp., 25 tavv. Available at http://bibdigital.rjb.csic.es/ing/Libro.php?Libro=2424