The pupa inside this cage is a parasitoid tachinid fly , which has devoured the caterpillar from the inside out and now hangs safely out of reach of potential predators .

这个笼子里的蛹是一只拟寄生飞行物，它由内而外地吞噬了毛毛虫，现在正安全地悬挂在潜在捕食者范围外。