Fig. 9. Frontoclypeal area, left anterolateral view. A. Proceratium croceum. B in A phylogenetic analyis of ant morphology (Hymenoptera: Formicidae) with special reference to the poneromoprh subfamilies

Fig. 9. Frontoclypeal area, left anterolateral view. A. Proceratium croceum. B. Probolomyrmex guineensis, showing shelflike projection. Abbreviations: ac, acetabulum of antennal socket; at, anterior tentorial pit; Md, mandible.