Female sex pheromone of a lichen moth Eilema japonica (Arctiidae, Lithosiinae): components and control of production.
Seven candidates for components of the female sex pheromone of Eilema japonica (Arctiidae, Lithosiinae) were detected in an extract of pheromone glands with a gas chromatograph-electroantennographic detector. The compounds were identified as (Z,Z)-6,9-icosadiene (D20), (Z,Z)-6,9-henicosadiene (D21), (Z,Z,Z)-3,6,9-henicosatriene (T21), (Z,Z)-6,9-docosadiene (D22), (Z,Z,Z)-3,6,9-docosatriene (T22), (Z,Z)-6,9-tricosadiene (D23), and (Z,Z,Z)-3,6,9-tricosatriene (T23). Assays using synthetic lures in a wind tunnel showed that D21 (proportion, 0.39), T21 (0.08), D22 (0.27), and T22 (0.26) are important for evoking full behavioral responses from the males. Titers of the pheromone components did not show clear temporal fluctuations. Moreover, decapitation of the female moth had no effect on the titers of pheromone components in the pheromone gland, suggesting that cephalic endocrine factors such as pheromone biosynthesis activating neuropeptide (PBAN) are not involved in the control of pheromone biosynthesis in this species.
Fujii
Takeshi
T
Laboratory of Applied Entomology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan. pippi.boo@gmail.com
Nakano
Ryo
R
Takubo
Yoshiko
Y
Qian
Shuguang
S
Yamakawa
Rei
R
Ando
Tetsu
T
Ishikawa
Yukio
Y
D000818:Animals; D005260:Female; D008401:Gas Chromatography-Mass Spectrometry; D006839:Hydrocarbons, Acyclic / Q000032:analysis*; D008297:Male; D009036:Moths / Q000737:chemistry* / Q000378:metabolism*; D012724:Sex Attractants / Q000032:analysis / Q000096:biosynthesis*; D012726:Sexual Behavior, Animal / Q000502:physiology
D006839:Hydrocarbons, Acyclic; D012724:Sex Attractants