Hatch Chart for Bighorn River, MT
| Insect |
Size |
Body/Wing Color |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
| Midge |
18-20 |
Black, olive and cream bodied |
 |
|
|
|
|
|
|
|
|
|
|
|
| Pale Morning Dun |
16-18 |
Yellow/tan body, smoky gray wing |
|
|
|
|
|
|
|
|
|
|
|
|
| Little Yellow Stonefly |
16-18 |
Yellow/tan body, light tan to yellow wing |
|
|
|
|
|
|
|
|
|
|
|
|
| Caddis |
16-18 |
Olive, brown, yellow, black |
|
|
|
|
|
|
|
|
|
|
|
|
| Baetis |
16-20 |
Blue winged olive |
|
|
|
|
|
|
|
|
|
|
|
|
| Trico |
18-22 |
Dark brown with white wing |
|
|
|
|
|
|
|
|
|
|
|
|
|