A male syrphid fly ( eristalinus taeniops ) using its longproboscisto forage nectar from a common hawkweed flower .

一只雄性食蚜蝇（学名：eristalinustaeniops）正在用它的长吻吸食山柳菊的花蜜。

The eyes coming together at the top of the head ( holoptic eyes ) is typical of syrphid males .

它的双眼在头部顶端相接（接眼式复眼），这是雄性食蚜蝇的典型特征。