My caddis pupa

Few days ago, I and a friend go to creek fishing in a spot about 1.5-hour drive from Taipei. We did some aquatic insect searching in the creek, and we saw some big and pretty caddis pupa. After we came home, I keep thinking the caddis pupa, about how should I imitate it, and how should I manipulate it.

So I tied this caddis pupa tonight, and it spend me about 30 mins to tie single one. Hope it work well on my next trip.