Any insect that is large enough to be supported on a pin without breaking or otherwise being distorted is pinned directly through the body. Insert the pin through the body from top to bottom. The proper place of insertion depends upon the type of insect ( Figure 15 ). The adopt rules are for pinning different types of insects so that the peg is placed hard through the heavier parts of the body without destroying important identify characteristics.
- Bees, wasps, flies, etc. – Pin through the thorax between bases of fore wings and slightly to right of middle line (Figure 15A).
- True bugs – Pin through the scutellum, which is the triangular area between the bases of the wings (Figure 15B).
- Grasshoppers, crickets, etc. – Pin through the prothorax or “saddle” slightly to the right of the center line (Figures 15C and 15D).
- Beetles – Pin through the forepart of the right wing cover near the centerline (Figure 15E).
- Butterflies, moths, dragonflies, etc. – Pin through center of thorax between the bases of forewings (Figures 15F and 15G).
A patch of 1-inch thick Styrofoam is an excellent help for pinning or mounting specimens. As each specimen is pinned, push the peg into the foam until the insect rests on the surface with approximately one-fourth to one-third of the peg projecting above the worm to facilitate cover of the specimen. Adjust the branch, antenna, and wings to a graphic position with forceps and hold them in space with supernumerary pins if needed. Allow the specimen to dry in the desire position for 7 to 8 days before moving. To prevent sag, the abdomens of soft-bodied insects, such as crickets, mantids, or walking sticks, can be farther supported with two impermanent pins crossed at an fish such that the abdomen rests where the pins cross. Pieces of light cardboard supported on other pins can besides serve this function. once dry, the specimen will retain the proper place and the irregular supports can be removed.
flat sheets of Styrofoam or other holey material besides provide a handy place for the impermanent retain of pin specimens while they are labeled, identified, or arranged in display boxes .