THE POLYMORPHIC FORMS OF MELITTOBIA CHALYBII ASHMEAD AND THE DETERMINING FACTORS INVOLVED IN THEIR PRODUCTION. (HYMENOPTERA: CHALCIDOIDEA, EULOPHIDÆ)
THE POLYMORPHIC FORMS OF MELITTOBIA CHALYBII ASHMEAD AND THE DETERMINING FACTORS INVOLVED IN THEIR PRODUCTION. (HYMENOPTERA: CHALCIDOIDEA, EULOPHIDÆ)
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Melittobia Chalybii ashmead 的多态性及其产生的决定因素（膜翅目：Chalcidoidea，EULOPHIDÆ）
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发表时间：
1933
期刊：
影响因子：
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通讯作者：
R. G. Schmieder
中科院分区：
文献类型：
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作者：
R. G. Schmieder
1. 寄生小蜂Melittobia chalybii Ashm。以两种形式出现：典型形式和短暂形式或第二种形式。这两种形式中的一种或另一种的产生取决于幼虫生长期间获得的营养条件。第三种雌性是通过实验获得的，在正常培养中很少见。2．第二种形态的雄性与典型形态的不同之处在于它们的颜色较深，并且其视器官的状况更加不良。第二型雌虫与典型雌虫的不同之处在于，它们的颜色较浅，从蛹中出来时翅膀无法展开，羽化时腹部肿胀，充满成熟的卵，而且它们的想象寿命很短。第二种形式的两性在产卵后至少十四天就成为成虫，而典型形式个体的发育需要九十天。3。生活史如下： 一位女性...
1. The parasitic chalcid Melittobia chalybii Ashm. occurs in two forms, the type-form and the short-lived or second-form. The production of one or the other of these two forms is determined by the trophic conditions obtaining during the growth of the larva. A third form of female was obtainable experimentally and very rarely in the normal cultures.2. The males of the second-form differ from the type-form in their darker color and in the more aborted condition of their optic organs. The females of the second-form differ from typical females in their lighter color, in the failure of their wings to spread upon emerging from the pupa, in the large swollen condition of the abdomen which is full of ripe eggs at the time of emergence, and in the shortness of their imaginal life. Both sexes of the second-form emerge as adults in a minimum of fourteen days after oviposition compared with the ninety days required for the development of individuals of the type-form.3. The life history is as follows: A female of the ...