Instituto de Investigaciones Agropecuarias y Forestales, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacán, México.
J Insect Sci. 2011;11:170. doi: 10.1673/031.011.17001.
Individuals belonging to species of the genus Conophthorus (Coleoptera: Curculionidae) are notoriously difficult to sex, especially if only certain parts of the beetle are available and the genitals are unidentifiable. We are presenting evidence demonstrating that rows of setae and setal characteristics at the posterior margin of tergite VII (the fifth visible tergite) can be used to sex the three Mexican pine cone beetle species Conophthorus conicolens Wood, C. teocotum Hopkins, and C. michoacanae Wood, from each other. Although the three Conophthorus are clearly described taxonomically by Wood ( 1977 ), the continued increase and development of forest plantations with a mixture of host species elucidates the importance of having reliable methods of sexing these species for purposes of researching and monitoring programs of their populations and pest management and control.
个体属于属 Conophthorus（鞘翅目：象甲科）的物种是出了名的难以辨别性别，特别是如果只有甲虫的某些部分可用并且生殖器无法识别的情况下。我们正在提供证据证明，在后缘的 VII 节背板（第五个可见背板）上的刚毛行和刚毛特征可用于彼此区分三种墨西哥松锥象物种 Conophthorus conicolens Wood、C. teocotum Hopkins 和 C. michoacanae Wood。尽管 Wood（1977）从分类学上清楚地描述了这三种 Conophthorus，但随着带有宿主物种混合物的森林种植园的不断增加和发展，阐明了为研究和监测其种群以及害虫管理和控制计划而对这些物种进行可靠的性别鉴定方法的重要性。
