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One kind of female butterfly mates only once in its life -- and then closes its wings to avoid "harassment" when pursued by persistent and unwanted males, a Japanese researcher said. 日本一位研究人员称，雌性红灰蝶一生只交配一次，在其它雄性红灰蝶不停地追求它时，它会合上翅膀躲避这种不必要的“骚扰”。 Observations of the Small Copper Butterfly, a colourful orange and black butterfly, showed that some females closed their wings when males flew by, but only when they were males of their own species, said Jun-Ya Ide, an associate professor at Kurume Institute of Technology in Fukuoka, western Japan. 红灰蝶全身黄黑相间。日本西部福冈市久留米大学副教授六月亚井发现，当雄性红灰蝶飞近时，一些雌性红灰蝶经常会合拢翅膀。 | 
