近年,我国对四纹豆象的形态构造、生活史及生活习性等方面进行了大量的工作。根据某些形态特征及部分文献资料,有人把与四纹豆象近似的“拟四纹豆象”作为一个新种加以讨论。四纹豆象 Callosobruchus maculatus(F.)是仓贮豆类的重要害虫,也是我国对外检疫对象之一。因此,这不仅是一个理论问题,而且对粮食贮藏及植物检疫也有很大的关系。为了澄清这一问题,我们核对了原文的描述,并对来自不同国家的标本进行观察,在此基础上谈一点粗浅的看法。四纹豆象是一个个体变异较大的种。同时由于幼虫期的高密度、高温、食物含水量低及光照时间太长或太短等因素,均有助于在四纹豆象种群内诱发出“飞翔型”个体。“飞翔型”个体与正常型相比较,两个型的成虫在外部形态、生活习性、生理学以及虫体的化学组成等方面均有明显的不同。由于上述情况,使四纹豆象的变异更为复杂化。提出“拟四纹豆象”的主要根据之一,就是雌虫的交配囊内有两个波形骨化环,这一特征在四纹豆象的形态描述中没有记载。我们查阅了国内著作中的有关描述,的确没有提 In recent years, a great deal of work has been done on the morphological structure, life history and living habits of Sianguangxiang. According to some morphological characteristics and some documents, some people think that the “Quasi-Siwuxiangxiang” which is similar to Siwuxiangzi is discussed as a new species. Callosobruchus maculatus (F.) Is an important pest of storage beans and one of the objects of foreign quarantine in China. Therefore, this is not only a theoretical issue, but also has a great relationship to food storage and phytosanitary measures. In order to clarify this issue, we check the description of the original text and observe the specimens from different countries. Based on this, we will make some brief comments. Four grain beans is a larger variation of individual species. At the same time, due to the larval period of high density, high temperature, low water content and light time is too long or too short and other factors, are conducive to the four-legume population induced “flying” individuals. Compared with the normal type, the “flying type” individuals have obvious differences in the external shape, living habits, physiology and the chemical composition of parasites compared with the normal type. Due to the above situation, the mutation of Siwen Beansi is more complicated. One of the main bases of the proposed “quasi-four-legged elephant” is that there are two undulating ossification rings in the female mating capsule, which is not described in the morphological description of the four-legged elephant. We did not mention the relevant descriptions in the domestic writings