Catalogue of the hymenopterous insects in the collection of the British Museum. Part VI. Formicidae. Author Smith, F. text 1858 British Museum London http://antbase.org/ants/publications/8127/8127.pdf book 8127 C86CFDBF-61D9-48EE-9C2E-325FC0462B10 13. Cryptocerus cordatus . Cryptocerus cordatus, Smith , Mon. Crypt. Trans. Ent. Soc. Lond. 2nd ser. ii. 220. 16. pl. 21. f. 3 [[worker]]. Hab. Brazil (Santarem).