香港生物多樣性博物館
HONG KONG BIODIVERSITY MUSEUM
研究 • 教育 • 保存 Research • Education • Preservation
分配：
Every continent except Antarctica
棲息地：
Usually near an aquatic or semiaquatic environment, though many also live in drier habitats
飲食：
Larvae, including decaying materials, fungus, carrion, live insects and animals, and some plants.
全球物種數量：
80,000
香港的物種數量：
351
形態學
（如何識別它們）：
-Reduced antenna segmentation
-Two distinct parts make up of the larval mandible (lower jaw)
-The maxillary palp (an elongated appendage near the mouth) has two segments or fewer.
圖表
你可知道 ？
Flies are the second largest group of pollinators after the Hymenoptera (bees, wasps, and relatives). In wet and colder environments flies are more important as pollinators. Compared to bees, they need less food as they do not need to provide for their young. Many flowers that bear low nectar and those that have evolved trap pollination depend on flies.