If you're fishing the Bighorn River near Fort Smith, Montana, this is a fly that you definitely should have in your box. This sowbug imitation works well in tan and gray. Try tying it with an orange bead as well. Tie in sizes 14-18.

Materials

• Hook: Tiemco 2457 or Tiemco 3769 size 14-18
• Thread:UTC 70 Denier Red
• Rib: Silver Ultra Wire or Stainless Steel Wire
• Flash Back: Pearl Tinsel Medium
• Thorax: Ostrich Herl