Experimental Analysis of Adhesion of Chrysolina Polita (Chrysomelidae: Coleoptera) on a Variety of Surfaces

摘要: 1.Pulling forces of Chrysolina polita (L.) on glass, perspex and cloth have been recorded are plotted against body weight. The additional weight eggs in many the females is probably main reason that, females, pulling do. not increase significantly with weight, whereas those males 2.Pulling glass correlated but, general, neither cloth. This because traction achieved by adhesive setae, tarsal claws. 3.Counts setae 14 individuals indicate that numbers climbing (combined), male males, total number all show a significant 4.Pulling force increases (combined).Multiple regression analysis confirms view function setae. 5.Hooks, suction, electrostatic seizure largely discredited, molecular adhesion between substratum, possibly cohesive surface tension thin fluid layer, confirmed as most likely modes smooth surfaces C. beetles. 6.It proposed detachment acting leaf beetle drag whiplash effect leaves branches. Estimates for wind speeds required to remove beetles from alone calculated.