Floris Ignazio, Pusceddu Michelina, Niolu Pietro, Satta Alberto
Department of Agricultural Sciences, University of Sassari, Viale Italia 39A, 07100 Sassari, Italy.
Independent Researcher, Via Sassari 130, 07041 Alghero, Italy.
Insects. 2021 Nov 17;12(11):1035. doi: 10.3390/insects12111035.
During a bee fauna survey in the countryside of northern Sardinia, a honey bee queen ( L.) was detected while foraging on a borage ( L.) flower in Uri, Province of Sassari, Italy, most likely during an orientation flight before mating. Morphological details, detectable from photos with the naked eye and stereomicroscopic observations, confirmed that the honey bee queen was sucking nectar from a flower. The enormous development of the abdomen, lack of pollen-collecting structures in the legs and other characteristics such as the typical distally bilobed shape of the mandibles, with long hairs on their outer surface, proved the structural differences between the queen specimen and the other castes of bees. The queen's proboscis, which is shorter compared to the workers, may have been counterbalanced by the shape and nectar production of the borage flower. This new observation proves that the queen can feed herself under natural conditions, likely to obtain the energy required for flying. Although we cannot exclude disturbing factors that could explain this foraging behaviour of a queen observed for the first time, this note opens a new scenario and discusses this new finding in the context of the available literature on the queen's behaviour and questions to be answered.
在撒丁岛北部乡村进行蜜蜂群落调查期间,在意大利萨萨里省乌里的一处琉璃苣花上觅食时发现了一只意大利蜜蜂蜂王(西方蜜蜂),很可能是在交配前的定向飞行期间。从肉眼可见的照片和体视显微镜观察中可检测到的形态细节证实,这只意大利蜜蜂蜂王正在从花朵中吸食花蜜。腹部的巨大发育、腿部缺乏花粉采集结构以及其他特征,如典型的远端双叶形上颚,其外表面有长毛,证明了蜂王标本与蜜蜂其他蜂型之间的结构差异。与工蜂相比,蜂王的喙较短,这可能被琉璃苣花的形状和花蜜产量所抵消。这一新观察结果证明,蜂王在自然条件下能够自行觅食,可能是为了获取飞行所需的能量。尽管我们不能排除可能解释首次观察到的蜂王这种觅食行为的干扰因素,但本报告开启了一个新的场景,并在关于蜂王行为的现有文献背景下讨论了这一新发现以及有待解答的问题。