Surely, two front legs.
See, they were folded up, somewhat like the front legs of the mantis, only these could fold close together, being threadlike.
So the long threads are antennæ after all.
Now it has raised its head, which we easily see is quite round, with tiny eyes, and the antennæ are growing out from the front of it.
What is it? A walking stick? A mantis?
Why! why! There it goes, sailing off in the air with a queer little fluttering motion of its whole body.
It has wings!
John has caught it and brought it back.
Now let us see those wings, you strange little creature.