Night Collecting

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Night Collecting

• Utah Lepidopterists Society
• Aaron D. Olsen
• 12 March 2005

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Black Lights

• How do they work?
• Ballast
• Gases
• Pros?
• Cons?
• Cost?
• Effective?

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Mercury Vapor

• How do they work?
• Pros?
• Cons?
• Cost?
• Effective?

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Other Great Light Sources

• Metal Halide
• Sun Lamps
• Black Light Blue

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Turning up the power

• Small Generators (Watts)
• Large Generators (Heavy)

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Inverter Power

• Use DC current to convert to AC current
• Cons
• Hard on alternators
• Cord length
• Bugs in the car
• Where is the power?
• Pros
• Small
• Weightless
• Convenient

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Professional Sheet Systems
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Why do you need one?

• No trees, no problem
• It works, and you know it will tonight.
• Set it up anywhere
• You look like you know what you are doing
• Because you have so much money you do not know
  where to spend it.

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Personal Sheet Systems
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My Personal Collecting Sheet
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Classic Sheet Set up
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Light Traps
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Do They Really Work?
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Break Down
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How to Build a 175 Watt Mercury Vapor Night Light

• Materials
• 175 Watt Driveway Outdoor Security Lamp
• Power Source
• Containing Device
• Paint Can
• Military Ammo Box
• Wood
• Metal

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Low Budget Night Collecting
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Thats great, but how can I get my sheet to look
like this one?
Photo courtesy Bruce Walsh
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Using All Your Resources

• Street lights are everywhere
• Look for curbs
• Shake tree branches
• Look for spots

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Bad Street Lights

• Sodium Vapor
• Incandescent Bulbs

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Technique In Your Layout
Sheet
Generator
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Where Should I Collect?

• Wide Vistas
• Water
• Foliage
• Power
• Accessibility
• Disturbance
• Far Away From Frogs