Taxonomy of ant species (Hymenoptera: Formicidae) collected by pitfall traps from Sinai and Delta region, Egypt. Author Mohamed, S. Author Zalat, S. Author Fadl, H. text Egyptian Journal of Natural History 2001 3 40 61 journal article 21622 10.4314/ejnh.v3i1.30001 Genus: Cataglyphis Forster , 1850 Cataglyphis Foerster ,1850: Verh. Nat.Ver. Preuss. Rhinl. 7:493. Type-species: Formica megacola Forster , 1850: Verh. Nat. Ver. Preuss. Rhinl.:490. Distribution: Palaearctic, Ethiopian and Oriental regions. Key to species 1 - Petiole a truncated node with a flat dorsal surface sloping forward (Fig. 14)............2 - Petiole a rounded node or an upright thick scale..............................................4 2- Body colour uniformaly shining black ....................... C. minimus Collingwood . - Body colour otherwise.......................3 3- Body unicolourous yellow, gaster oval (Fig. 15); antennal scape shorter than head ............................... C. lividus (Andre) - Body bicoloured, head, alitunk, petiole and appendages bright red, gaster dark brown and globular (Fig. 16), antennal scape longer than head.............................. C. ruber (Forel) 4- Petiole an upright scale (Fig. 17), body covered with silvery pubescence, reddish brown, gaster dark brown in colour; third maxillary palp with long curved hairs (Fig. 18) .............................. C. sinaitica Wheeler - Petiole a rounded node (Fig. 19), body not covered with silvery pubscence, black in colour; third maxillary palp without long curved hairs.................... C. niger (Andre)