| [the ontogenetic variability of the morphometric traits of 2 species of ixodid ticks in the genus rhipicephalus]. | variability of 10 morphometric characters at all phases was investigated on laboratory cultures of r. turanicus and r. bursa. it has been shown that variability increases from phase to phase. r. turanicus nymphs of both sexes differ in the length of gnathostoma and length of the 1st tarsus. in nymphs of r. bursa sexual dimorphism manifests itself on 8 characters, in all cases sizes of organs are greater in female nymphs. besides, engorged female nymphs are reliably greater than male ones in leng ... | 1992 | 1364526 |