the world > animals > invertebrates > phylum Arthropoda > class Insecta > order Hymenoptera > 			[noun]		 > suborder Apocrita, Petiolata, or Heterophaga > group Aculeata (stinging) > ant > member of genus Messor (1)		
Entomology. A harvester ant of the genus Messor. Also (in form Messor): the genus itself.