松墨天牛交配行为及其规律初步研究

在室内养虫笼观察并分析松墨天牛Monochamus alternatus在以24h为周期内的交配行为及其规律。松墨天牛交配行为包括2个步骤：一是雌虫接近雄虫，在其周围活动；二是雄虫抱握雌虫，发生交配行为。交配日节律观察结果显示：松墨天牛在24h内有2次交配高峰期，10：00—14：00和18：00—24：00，它在这2个时间段以外很少或几乎不交配。松墨天牛交配行为具有以下特点：普遍存在与同一个体或不同个体的多次交配现象，交配次数为2次f含）以上的松墨天牛个体约占全部个体的77．5％，每次交配时间平均为50s；除正常雄雌交配外，还会出现雄雄和雌雌“交配”以及2只雄虫争夺雌虫交配权的现象。图1表1参15

Mating behavior and characteristics of Monochamus alternatus

The mating behavior and characteristics of Monochamus alternatus adults in cages were observed over a 24 h period. Results showed that the mating behavior consisted of two steps ： 1 ） the female got close to and moved around the male, and 2） the male caught the female and mated. Mating behavior rhythm within 24 h consisted of two mating peaks at 10：00-14：00 and 18：00-24：00. Little to no mating behavior occurred outside of these periods. Mating behavior revealed that multiple mating existed universally. Individuals with a mating frequency of 2 times （or more） accounted for 77.5% of all experimental insects, ＇and mating lasted 50 s each time. Apart from the normal male-female mating, male-male ＂mating＂ and female-female ＂mating＂ occurred. In addition, two males sometimes fought for the right of mating with the same female. [Oh, 1 fig. 1 tab. 15 ref.]