Trapping Efficiency and Sex Ratio of Maladera matrida Beetles in Yellow and Black Traps

摘要: In field experiments, which started several years ago to investigate the means of chemical communication Maladera matrida beetle, we found that ratio males females attracted bait (live with food) was 3 : 2–5 4 60 40–55 45). These findings suggested an aggregation pheromone is involved in communication, but constant small preference for raised question whether active compound(s) indeed or it a sex released by female attract male. Since traps used our studies were made yellow plastic, had consider possibility color could have influenced trapping flying beetles and biased behavior mode attraction toward source communication. To clarify this point, set out, study, conduct experiments compared standard black traps. We bright did affect results communication: The total catch double traps, male–female increased 1(80 20). This result hints pheromone, probably not as previously thought, M. maladera beetle.