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Lepidoptera Spreading Techniques. Presented by Vernon E. Evans 9 April 2005 Utah Lepidopterist Society Meeting. Techniques discussed. Standard groove board spreading with pins Vern’s upside down non-groove board method Magnetic groove board spreading. But wait…. First we need to….

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lepidoptera spreading techniques

LepidopteraSpreading Techniques

Presented by Vernon E. Evans

9 April 2005

Utah Lepidopterist Society Meeting

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techniques discussed
Techniques discussed
  • Standard groove board spreading with pins
  • Vern’s upside down non-groove board method
  • Magnetic groove board spreading

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slide3

But wait…

First we need to…

prepare the specimen.

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the injection method
The injection method
  • Take a syringe with warm water and inject it into the thorax of the specimen.

Disadvantages

Advantages

  • Does not provide a completely relaxed specimen.
  • Sticking a syringe into a dried specimen could cause damage.

1. Fast way to prepare specimen for spreading.

2. Very little setup preparation needed.

3. Easy to learn.

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freezer method
Freezer method

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freezer method8
Freezer method
  • All freshly emerged specimens and fresh field caught specimens are placed directly into the freezer to be spread soon thereafter.
  • Remove from freezer and let specimen thaw and spread.

Advantages

Disadvantages

  • No setup required.
  • No materials needed.
  • Fast and easy.
  • Potential problem with spouse when they find dead bugs near their food.
  • Specimen will eventually dehydrate and another method must be used.

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vern s relaxing chamber
Vern’s Relaxing chamber

I utilize a relaxer similar to what others may use with only a few modifications for speed.

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vern s relaxing chamber10
Vern’s Relaxing chamber

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vern s relaxing chamber11
Vern’s Relaxing chamber

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vern s relaxing chamber12
Vern’s Relaxing chamber

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differences in my relaxer
Differences in MY relaxer
  • I use only water on my multiple layers of paper towels.
  • I place my specimens directly onto the damp paper towels.
  • Data goes on a corresponding board in the same order the specimens are in the relaxer.

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differences in my relaxer14
Differences in MY relaxer

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differences in my relaxer15
Differences in MY relaxer

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differences in my relaxer16
Differences in MY relaxer

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advantages of my relaxer
Advantages of MY relaxer
  • Complete specimen is relaxed
  • Because specimen is in direct contact with moist towel re-hydration occurs very quickly.

Time to re-hydrate

Lycaenidae 20-30 minutes

Papilionidae 2-3 hours

Saturniidae 6-10 hours

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possible disadvantages
Possible disadvantages
  • You can not leave the specimens in the relaxer too long or mold will occur.
  • There is a possibility of the relaxer being disturbed while the specimens are in it and this would cause a problem since the data will no longer correspond with the specimen’s location in the relaxer.

** This have never happened to me.

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slide19

Now onto the specimen spreading…

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standard groove board with pins
Standard groove board with pins

This is the most commonly described way to spread lepidoptera.

  • Materials needed:
  • Grooved spreading board
  • Pins
  • Paper strips
  • Don’t forget the Specimen.

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standard groove board with pins21
Standard groove board with pins

This is the most commonly described way to spread lepidoptera.

  • Materials needed:
  • Grooved spreading board
  • Pins
  • Paper strips
  • Don’t forget the Specimen.

Click to proceed to next slide 

standard groove board with pins22
Standard groove board with pins

This is the most commonly described way to spread lepidoptera.

  • Materials needed:
  • Grooved spreading board
  • Pins
  • Paper strips
  • Don’t forget the Specimen.

Click to proceed to next slide 

standard groove board with pins23
Standard groove board with pins

Don’t forget to get the bug!

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todd stout is demonstrating this method with a pima orangetip
Todd Stout is demonstrating this method with a pima orangetip

Note: Sit back and watch slides for this technique. You do not need to click to next slide until prompted.

Insert insect pin perpendicularly through thorax of butterfly with ¾ of pin penetrating through the butterfly and ¼ remaining above.

Todd uses this device to prevent the abdomen from falling into the groove.

Finished product!—Click to next slide

Place pinned specimen into groove on mounting board.

Clear strips used to hold wings in desired position with the help of the pins.

Todd uses this device to place the head and antennae.

Like such.

This bug is going nowhere!!

Here he is putting it into place.

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magnetic grooved board
Magnetic grooved board

This method is similar to the previous method. The major difference being the use of a metal spread board and magnets in place of pins to hold the wings in place until the specimen is dry.

  • Materials needed:
  • Grooved METAL spreading board
  • Magnets and pins
  • Paper strips
  • Still need a specimen

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magnetic grooved board26
Magnetic grooved board

This method is similar to the previous method. The major difference being the use of a metal spread board and magnets in place of pins to hold the wings in place until the specimen is dry.

  • Materials needed:
  • Grooved METAL spreading board
  • Magnets and pins
  • Paper strips
  • Still need a specimen

Click to proceed to next slide 

magnetic grooved board27
Magnetic grooved board

This method is similar to the previous method. The major difference being the use of a metal spread board and magnets in place of pins to hold the wings in place until the specimen is dry.

  • Materials needed:
  • Grooved METAL spreading board
  • Magnets and pins
  • Paper strips
  • Still need a specimen

Click to proceed to next slide 

magnetic grooved board28
Magnetic grooved board

This method is similar to the previous method. The major difference being the use of a metal spread board and magnets in place of pins to hold the wings in place until the specimen is dry.

  • Materials needed:
  • Grooved METAL spreading board
  • Magnets and pins
  • Paper strips
  • Still need a specimen

Click to proceed to next slide 

jack harry is demonstrating this method with a nitra form anise swallowtail
Jack Harry is demonstrating this method with a nitra form anise swallowtail

Note: Sit back and watch slides for this technique. You do not need to click to next slide until prompted.

Finished product Click  to proceed to next slide

Click to proceed to next slide 

vern s upside down non groove board method
Vern’s upside down non-groove board method

This method breaks away from the traditional teachings somewhat.

It is designed to take full advantage of the pronounced ventral side of the specimen.

It optimizes space allotted on the spreading surface allowing you to spread many specimens at one time.

This method was taught to me by Dr. Richard Howard, Director Natural History Museum Amarillo College. He was taught by his grandfather.

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materials needed
Materials needed
  • Styrofoam block
  • Insect pins
  • Paper strips
  • And yes…

I use the bottom of this board. NOT the grooved side.

the specimen

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materials needed32
Materials needed
  • Styrofoam block
  • Insect pins
  • Paper strips
  • And yes…

I use the bottom of this board. NOT the grooved side.

the specimen

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materials needed33
Materials needed
  • Styrofoam block
  • Insect pins
  • Paper strips
  • And yes…

the specimen

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materials needed34
Materials needed
  • Styrofoam block
  • Insect pins
  • Paper strips
  • And yes…

the specimen

Click to proceed to next slide 

materials needed35
Materials needed
  • Styrofoam block
  • Insect pins
  • Paper strips
  • And yes…

the specimen

Click to proceed to next slide 

vernon evans is demonstrating this method with a scarlet mormon
Vernon Evans is demonstrating this method with a scarlet mormon

Note: Excepting this slide, sit back and watch slides for this technique. You do not need to click to next slide until prompted. O.K. Click now and then wait until prompted again 

Click to proceed to next slide 

vernon evans is demonstrating this method with a scarlet mormon37
Vernon Evans is demonstrating this method with a scarlet mormon

Now while bracing the thorax of the specimen you will remove the temporary support pin.

**DO NOT FORGET THIS STEP!!

Utilizing the ventral surface of the specimen, positioning the wings becomes much easier and reduces the possibility of wing damage.

This is a temporary support pin to prevent the specimen from rotating while positioning the wings.

Note the head of the pin going into the Styrofoam.

Finished product. Click to proceed to next slide 

This specimen will be mounted dorsal side up.

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to mount a specimen ventral side up you place the pin tip into the foam
To mount a specimen ventral side up you place the pin tip into the foam.

Note the position of the head of the pin. It is out of the foam not in it.

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advantages more specimens one each board
AdvantagesMore specimens one each board.

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another advantage
Another advantage

Easily spread large specimens.

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slide41

www.utahlepsociety.org

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