| The most important insects vary with the season but the bulk of them are either mayflies, caddis, midges or terrestrials. |
| It's also the hopper season, so grasshoppers and caddis patterns are the usual fare. |
| In rivers rainbow trout will feed primarily upon the larvae of mayflies and caddis flies. |
| It put us in mind of the caddis worms which we had seen in ponds in England. |
| Every day the sun sets behind blurred clouds of stonefly, caddis, midge or mayfly dancing against the horizon. |
| The bulk of the diet of trout is made up of small invertebrates, particularly mayfly nymphs and caddis fly larvae. |
