Yu. I. Chernov, K. V. Makarov, and P. K. Eremin Family of Ground Beetles (Coleoptera, Carabidae) in the Arctic Fauna: Communication 2 Entomological Review, Vol. 81, No. 1, 2001, pp. 108-117. Translated from Zoologicheskii Zhurnal, Vol. 80, No. 3, 2001, pp. 285-293. Abstract. The Arctic fauna of ground beetles includes 25-27 genera belonging to about 20 tribes, most of which are represented by 1Ц2 genera. Many genera and taxa of the higher rank, constituting a significant part of the Holarctic fauna, are absent from Arctic. As in other insect groups, the number of Arctic species in a given taxon shows no direct relationship with the total species number in this taxon. Small genera constitute an essential part of the Arctic ground beetle fauna. A review of the species diversity of tribes and genera constituting the Arctic carabid fauna is presented. The Mountain Siberian, tundra-steppe, and intrazonal hygrophilous complexes are characterized. The family does not contain hyperarctic forms; 2Ц3 euarctic, about 15 hemiarctic, and 20 hypoarctic forms can be distinguished. The general trend of increasing number of taxa from the basal part of the familyТs phylogenetic scheme and number of groups and species with some primitive and plesiomorphic features is noted. In the first communication (Chernov et al., 2000), families Cicindelinae, Omophroninae, Brachininae, we discussed the specific diversity of ground beetles and Paussinae. Of the subfamily Carabinae, the Arctic and latitudinal limits of their distribution in the Arctic fauna includes no representatives of the supertribes in relation to the landscape and climatic conditions, Siagonitae, Panagaeitae, and Callistitae, and also of ecological composition of the fauna, etc. This analysis the large and diverse complex of tribes belonging to was primarily based on the available literature (mostly Lebiomorpha (except for a few species of Cymindis). concerning the Eurasian Arctic sector), results of the A considerable number of genera, well represented in authorsТ field work, and the collection material. The the boreal forest zone, such as Harpalus, Loricera, present communication is devoted to analysis of the Trechus, and Dyschirius, can only tentatively be in- taxonomic structure of ground beetle fauna in the cluded in the Arctic fauna, because their northern dis- Arctic and to some aspects of the formation of this tribution is restricted to the forest-tundra or southern- fauna in the tundra zone. most tundra areas.