COLLECTION AND PRESERVATION OF INSECTS 



17 



close to the edge of a box so that other pins to hold the legs in place 

 may be thrust into the sides of the box at various angles. With some 

 specimens, such as wasps and long-legged flies and bugs, the legs and 

 abdomen may be kept in place until dry by pushing a piece of stiff 

 paper up on the pin beneath them. 



Moths, butterflies, and sometimes grasshoppers, dragonflies, and cica- 

 das, should have the wings on one or both sides spread. For this 

 purpose a spreading board is necessary. The construction and use 

 of the spreading board is discussed on page 19. 



Figure 9. — Examples of correct pinning methods for common insects ; the black 

 spots show where the pins should go. A, Grasshopper and related Orthoptera, 

 showing how wings should be spread ; B, side view of a grasshopper, showing 

 position of legs and antennae ; C, a stinkbug, an example of the order Hemip- 

 tera, showing method of pinning large bugs ; D, a bee, order Hymenoptera, to 

 show where bees, wasps, and flies should be pinned; E, a May beetle, order 

 Coleoptera, showing method of pinning beetles ; F, G, butterfly and moth, 

 order Lepidoptera, showing location of pin and position of wings and antennae. 



Figuke 10. — Pinning block for adjusting specimens and labels to a uniform height 



on the pin. 



