Cytotaxonomical investigations on spiders (Gnaphosidae, Theridiidae, Lycosidae)

In this study, the six spider gathered Gaziantep and Kahramanmaras provinces between 2009 and 2010 spread chromosome preparations were prepared their gonats made dissection. A total six species by three spider family chromosome numbers and sex chromosome systems were investigated. Chromosome analyse was carried out according to Pekar ve Kral (2001) with some modifications.Gnaphosidae: Zelotes petrensis (C. L. Koch, 1839) diploid chromosome number 2n (?) =23, sex determining mechanism (n = 11) X; Zelotes aeneus (Simon 1878) diploid chromosome number 2n (?) =20, sex determining mechanism (n = 9) XX; Nomisia conigera (Spassky, 1941) diploid chromosome number 2n (?) = 22, sex determining mechanism (n = 10) XX; Theridiidae: Theridion pictum (Walckenoer, 1802) diploid chromosome number 2n (?) =23, sex determining mechanism (n = 11) X, 2n (?)=29, sex determining mechanism (n = 14) X; Steotoda triangulosa (Walckenoer 1802) diploid chromosome number 2n (?)= 26, sex determining mechanism (n = 12) XX; Lycosidae: Trochosa ruricola (De Geer, 1778) diploid chromosome number 2n (?) = 20, sex determining mechanism (n = 9) XX were found.Anahtar Kelimeler: Araneae, Cytotaxonomy, Theridiidae, Gnaphosidae, Lycosidae