Cryptocerus obtusus Smith, 1858 an obsolete combination of Cephalotes obtusus (Smith, 1858)
Cryptocerus obtusus Smith, 1858a: 191 (w.) BRAZIL (Pará). Neotropic.
Primary type information: Primary type material: holotype (?) worker. Primary type locality: Brazil: Santarem (H.W. Bates). Primary type depository: BMNH. Type notes: 1) No indication of number of specimens is given. 2) De Andrade & Baroni Urbani, 1999: 172, record a second syntype (in ZSBS) from Amazonas, but this locality is not mentioned in the original description.