| how tight are beetle hugs? attachment in mating leaf beetles. | similar to other leaf beetles, rosemary beetles chrysolina americana exhibit a distinct sexual dimorphism in tarsal attachment setae. setal discoid terminals occur only in males, and they have been previously associated with a long-term attachment to the female's back (elytra) during copulation and mate guarding. for the first time, we studied living males and females holding to female's elytra. pull-off force measurements with a custom-made tribometer featuring a self-aligning sample holder con ... | 2017 | 28989792 |
| characterization and chromosome location of satellite dna in the leaf beetle chrysolina americana (coleoptera, chrysomelidae). | this paper is the first record of the satellite dna of the specialized phytophagous genus chrysolina. the satellite dna of chrysolina americana is organized in a tandem repeat of monomers 189 bp long, has a a + t content of 59.6% and presents direct and inverted internal repeats. restriction analysis of the total dna with methylation sensitive enzymes suggests that this repetitive dna is undermethylated. in siti hybridization with a biotinylated probe of the satellite dna showed the pericentrome ... | 2000 | 11678504 |