Sexually differentiated functions of female-produced pheromone of the black chafer Holotrichia loochooana loochooana (Sawada) (Coleoptera: Scarabaeidae).

Autor: Norio Arakaki, Sadao Wakamura, Hiroe Yasui, Yasutsune Sadoyama, Mitsunobu Kishita
Předmět:
Zdroj: Chemoecology; Dec2003, Vol. 13 Issue 4, p183-186, 4p
Abstrakt: Summary. Both male and female Holotrichia loochooana loochooana (Sawada) (Coleoptera: Scarabaeidae) were attracted with female-produced pheromone, anthranilic acid (2-aminobenzoic acid), in the field. Male chafers were observed to apparently directly locate cotton balls impregnated with 1 to 10 mg of pheromone. In contrast, females never directly oriented to the treated balls but landed 0.2-1.5 m away and exposed their abdominal glands in a calling posture, which occasionally resulted in aggregation of both females and males. This suggested the mating aggregation of this species could be primarily induced by pheromone released by females. A hypothesis for adaptability of female aggregation is proposed and discussed. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
Externí odkaz: