Like the scorpionflies and lacewings, these true flies were thriving on the reproductive structures of gymnosperms, not angiosperms.

像蝎子蝇和草蛉一样，这些真正的苍蝇在裸子植物而非被子植物的生殖结构上繁衍生息。

And it looks like it wasn't the lacewings, scorpionflies, or true flies that would become their first partners.

看起来成为它们第一个伙伴的不是草蛉、蝎子蝇或真正的苍蝇。

So, by the Cretaceous Period, long, tube-like mouthparts adapted to reach into gymnosperms had appeared in scorpionflies, lacewings, and true flies, evolving multiple times across these groups.

因此，到白垩纪时期， 蝎子、草蛉和真蝇中出现了长长的管状口器， 可以伸入裸子植物，并在这些种群中进化了多次。

But, ultimately, many of the specialized gymnosperm pollinators would go extinct, including the ancient lacewings around 100 million years ago, and that group of true flies and certain groups of scorpionflies about 94 million years ago.

但是，最终，许多专门的裸子植物传粉者将会灭绝，包括大约 1 亿年前的古老草蛉，以及大约 9400 万年前的那群真蝇和某些蝎子群。