昆虫鉴定,大约3毫米大小的虫子,在我的脖子上抓到的,拍了下来,谁知道这是什么虫子,学名什么?

2025年03月15日 13:18
有1个网友回答
网友(1):

照片上的只不过是一只昆虫的一部分。

应该是一只一色瓢虫的头部和前胸。

异色瓢虫属于鞘翅目,瓢虫科的一种益虫。

它主要捕食蚜虫,而蚜虫会危害很多农作物,所以在全国各地,都有放养异色瓢虫来作为害虫的天敌,保护农作物。



异色瓢虫和七星瓢虫不同,它具有很多种颜色和花纹的变化。

体长5.40—8毫米;宽3.80一5.20毫米。体卵圆形,突肩形拱起,但外缘向外平展的部分较窄。体色和斑纹变异很大。头部橙黄色、橙红色或黑色。前胸背板浅色,有1个“M”形黑斑,向浅色型变异时该斑缩小,仅留下4或2个黑点;向深色型变异时该斑扩展相连以至前胸背板中部全为黑色,仅两侧浅色。小盾片橙黄色或黑色。鞘翅上各有9个黑斑,向浅色型变异的个体鞘翅上的黑斑部分消失或全消失,以致鞘翅全部为橙黄色;向深色型变异时,斑点相互连成网形斑,或鞘翅基色黑而有1、2、4、6个浅色斑纹甚至全黑色。


信息来源:

http://baike.baidu.com/picview/126302/126302/0/4bac3073c04402738601b025.html#albumindex=1&picindex=1

http://baike.baidu.com/view/126302.htm

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