A New Species and a New Record of the Ant Genus Crematogaster Lund, 1831 (Hymenoptera: Formicidae) from Yemen

A new species of the genus Crematogaster Lund, 1831, C. abouzeidi sp. nov. is described from Yemen based on the worker caste. The new species resembles the Afrotropical C. flaviventris Santschi, 1910, thus previous records of C. flaviventris from Yemen may be mis-identified and need to be re-examined. Crematogaster ghoneimi Sharaf & Aldawood, 2022, previously known only from Saudi Arabia, is recorded for the first time from Yemen. Specimens were collected in an urban garden, raising the possibility of being brought to the site nesting in imported plants. A Synoptic list of the Crematogater species of Yemen is provided.