Crematogaster opaca Mayr, 1870b: 992 (w.) MEXICO. Neotropic.

Primary type information: Primary type material: lectotype worker (by designation of Ward & Blaimer, 2022: 918). Primary type locality: lectotype Mexico: (no further data) (Sichel). Primary type depository: BMNH. Primary type specimen: CASENT0902152 (lectotype). Secondary type information: Secondary type material: 1 paralectotype worker. Secondary type locality: Mexico: Tabukaya, 1865 (Bilimek). Secondary type depository: NHMW. Secondary type specimen: CASENT0919705. Type notes: Ward & Blaimer, 2022: 919, add that the two specimens are “almost certainly not conspecific”.

Infrasubspecies

• C. l. o. depilis Wheeler, 1908