蓝山国家公园里的萤火虫，澳大利亚 Glowworms in Blue Mountains National Park, Australia (© Leelakajonkij/Getty Images)

蓝山国家公园里的萤火虫，澳大利亚 Glowworms in Blue Mountains National Park, Australia (© Leelakajonkij/Getty Images)

Glowworm caves in Australia

Down under the land in the Land Down Under, cave explorers may find these subterranean spaces illuminated by an unlikely light source. Fungus gnat larvae—more affectionately known as glowworms—speckle the walls and ceilings of caverns here in Australia during the warm season from December to March. To humans they're hypnotizingly harmless and add a little otherworldly charm to the caves in such places as Blue Mountains National Park, as seen in our photo. But if you're a fly or mosquito, beware! Glowworms dangle tiny, sticky silk strands that ensnare winged insects flying toward what looks like a starry night sky, but is in fact the cave ceiling, covered in glowworms, patiently waiting to reel in a deceived fly.

澳大利亚的萤火虫洞穴

在地下，洞穴探险家可能会发现这些地下空间被一种不太可能的光源照亮。在12月至3月的温暖季节，真菌小昆虫幼虫（更亲切地称为萤火虫）在澳大利亚洞穴的墙壁和天花板上散布斑点。在我们的照片中可以看到，对人类来说，它们无害得令人着迷，为蓝山国家公园等地的洞穴增添了一点超凡脱俗的魅力。但如果你是一只苍蝇或蚊子，小心！萤火虫悬挂着细小的、粘乎乎的丝线，诱捕着飞向星空的有翼昆虫，但事实上是洞穴的天花板，上面覆盖着萤火虫，耐心地等待着一只受骗的苍蝇。