Adjustable deep V shaped spreading board for mounting winged insects. This spreading board is shaped so that the insect's wings are at a more natural position. The bolt can be loosened to allow the two sides to slide and tightened to snuggly hold the insect in place. The top is covered in 3mm of EVA foam. Updated version has wing nuts on the bolts to make it even easier to adjust and a base for pinning the body into. Size is suitable for any size Lepidoptera, even a morpho.
 
The moth demonstrates how the wings will look after being spread on this board.