THE ANT FAUNA (HYMENOPTERA, FORMICIDAE) OF THE MAPIMI-BIOSPHERE-RESERVE, DURANGO, MEXICO

The ant fauna of the Mapimi Biosphere Reserve (Durango, Mexico) was re corded from the 11 vegetation subtypes of the dominant crassicaule xer ophyte scrub. A total of 32 species of ants, placed in 19 genera were found. They were distributed in Ecitoninae (3 spp.), Myrmicinae (20 sp p.), Dolichoderinae (3 spp.) and Formicinae (6 spp.). Keys to the spec ies, a small diagnosis of each species, and field behavior notes on ea ch species are provided. The following species are recorded from Duran go for the first time: Neivamyrme-x leonardi, N. melanocephalus, Pheid ole subdentata, Tetramorium spinosum, Dorymyrmex insanus, Myrmecocystu s placodops and froin Mexico: Pheidole cockerelli, P. crassicornis, Le ptothorax nitens and Camponotus tortuganus.