Dlusskiĭ G M, Lavrova N V
Department of Evolution Theory, Biological Faculty, M.V. Lomonosov Moscow University, Vorob'evy Gory, 119899 Moscow, Russia.
Zh Obshch Biol. 2001 Jan-Feb;62(1):57-65.
The full amount and species composition of pollen from intestines of 11 species of Syrphidae (Arctophila fulva, Eristalis arbustorum, E. nemorum, E. pertinax, Helophilus pendulus, Myiatropa florea, Rhingia campestris, Sericomyia silentis, Syrphus baltheatus, S. ribessii and S. vitripennis), collected at the some place (Torma, Jogeva distr., Estonia) and at the some time (18-20 July 1989) have been studied. Maximum number of pollen grains is different fly species varied from 67,800 (Rh. campestris) up to 240,700 (S. silentis) grains, and average number from 25,560 (Rh. campestris) up to 115,880 (E. pertinax) grains. Maximum volume of pollen in different fly species varied from 1.5 (S. ribesii) up to 23.6 (S. baltheatus) mm3, and average volume from 0.36 up to 7.0 mm3 (the same species). The difference in a imaginal diets of Syrphidae are found, and the degree of difference does not correlate with a degree taxonomic affinity of species. The difference in strategy of a feeding behavior of two Syrphus species, that have similar diet, are marked: in intestines of 80% specimens of S. ribesii we found pollen grains of less that 7 plant species, whereas intestines of more than 88% specimens of S. vitripennis contained more than 8 species of grains. Distinction in alimentary preferences of different species of files can not be explained neither particularities of their morphology, nor their color preferences.
对11种食蚜蝇（黄斑阿蚜蝇、黄腹食蚜蝇、黑带食蚜蝇、狭带食蚜蝇、垂边食蚜蝇、大灰食蚜蝇、田食蚜蝇、静蝇、黑带蚜蝇、醋栗蚜蝇和亮翅蚜蝇）肠道内花粉的总量及种类组成进行了研究，这些食蚜蝇于同一地点（爱沙尼亚约盖瓦县托尔马）、同一时间（1989年7月18 - 20日）采集。不同食蚜蝇种类的花粉粒最大数量从67800粒（田食蚜蝇）到240700粒（静蝇）不等，平均数量从25560粒（田食蚜蝇）到115880粒（狭带食蚜蝇）不等。不同食蚜蝇种类的花粉最大体积从1.5立方毫米（醋栗蚜蝇）到23.6立方毫米（黑带蚜蝇）不等，平均体积从0.36立方毫米到7.0立方毫米（同一种类）。发现了食蚜蝇成虫食物的差异，且差异程度与物种的分类学亲缘程度无关。两种食性相似的蚜蝇在取食行为策略上存在明显差异：在80%的醋栗蚜蝇标本肠道中发现少于7种植物的花粉粒，而在超过88%的亮翅蚜蝇标本肠道中含有超过8种花粉粒。不同种类食蚜蝇在食物偏好上的差异既不能用它们形态的特殊性来解释，也不能用它们的颜色偏好来解释。
