Title: Identification and field evaluation ofAnomala octiescostata (Coleoptera: Scarabaeidae) sex pheromone Leal WS, Hasegawa M, Sawada M, Ono M, Ueda Y Ref: J Chem Ecol, 20:1643, 1994 : PubMed
Using GC-EAD, the sex pheromone of the scarab beetleAnomala octiescostata was identified to be a 8:2 binary mixture of (R,Z)-5-(-)-(oct-1-enyl)oxacyclopentan-2-one and (R,Z)-5-(-)-(dec-1-enyl)oxacyclopentan-2-one. These semiochemicals have been also reported as sex pheromone constituents of otherAnomala species, either geographically or seasonally isolated fromA. octiescostata. Synthetic sex pheromone was highly attractive in the field; 0.1 mg captured significantly more males than two virgin females. Buried traps were significantly more attractive than those positioned at 30, 90, and 150 cm above the ground. In a dose-response test (0.1-100 mg), no saturation due to overdose of pheromone was observed, but in most cases, two dosages differing by 10-fold were not significantly different. Response of males to traps baited with different ratios of the two components was tested in two experiments with randomized blocks and Latin-square designs. Deviation from the natural ratio (8:2) of sex pheromone did not significantly diminish the response of males. Peak flight activity of beetle was recorded at 9:00-10:00 AM JST on sunny days in the end of April 1993.
Leal WS, Hasegawa M, Sawada M, Ono M, Ueda Y (1994) Identification and field evaluation ofAnomala octiescostata (Coleoptera: Scarabaeidae) sex pheromone J Chem Ecol20: 1643-55
Leal WS, Hasegawa M, Sawada M, Ono M, Ueda Y (1994) J Chem Ecol20: 1643-55