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Hennig, W. 1969. Die Stammesgeschichte der Insekten. Frankfurt: Waldemar Kramer, 436 pp.

Notes: Page 336: report of an ant from lower Cretaceous (Neocomian) Lebanese amber.

Herbers, J. M. 1988. Manica mutica in Gunnison County, Colorado. Pp. 157-159 in: Trager, J. C. (ed.) 1988. Advances in myrmecology. Leiden: E. J. Brill, xxvii + 551 pp.