Callibaetis and ants are on the menu for the fish in Lassen Volcanic Park. Bring your favorite ant pattern along with some #14 Dark Missing Links and you should be able to fool the trout here. Damsels are emerging as well. Fish the Zack Attack Damsel on a floating or intermediate sinking line, dredge the deeper parts of the lake with these as well. Some good Callibaetis emerger flies are ZT's Zallibaetis or a Pheasant Tail in #14 - 16, and for stillborn insects you can fish Morrish May Day, CDC Biot Spnner or Qugley's Fim Critic in #16. Water Boatmen will be a thing as the lake warms this month. And always bring your stillwater assortment to include midge pupae and mayfly nymphs.

Hot Flies: 

Dry Flies:
• Harrop's Last Chance - #16-20
• Adams - #14-18
• Mayfly Cripple - #18
• Last Chance Cripple - Callibaetis or Baetis
• Mercer's Missing Link - #14-16
• Mercer's Parachute Profile Spinner

Nymphs/Wet Flies:
• Zack's Attack Damsel
• Burk's Sierra Damsel
• Zack's Bomb Squad. - #14-16
• Hogan's S&M - Olive #16-18
• Beaded Zebra Midge - Black #18-20
• Mercer's Gidgets

Streamers & Leeches:
• Beaded Micro Bugger - Black
• Zonkers - #4
• Beaded Micro Buggers - Any