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MISC. PUB. 601, U. S. DEPT. OF AGRICULTURE 



1. Grasshoppers, katydids, etc. : Pin through the back part of the thorax to 

 the right of the middle line (fig. 9, A). 



2. Stinkbugs and other large Hemiptera : Pin through the scutellum to the 

 right of the middle line (fig. 9, C). 



3. Bees, wasps, and flies : Pin through the thorax between or a little behind 

 the bases of the forewings and to the right of the middle line (fig. 9, D). 



4. Beetles : Pin through the right wing cover near the base (fig. 9, E). 



5. Moths, butterflies, dragonflies, and damselflies: Pin through the middle 

 line of the thorax at the thickest point or between or a little behind the bases 

 of the forewings (fig. 9, F, O). 



Figure 7. — Illustration of right and wrong methods of pinning : A, Correct height 

 and position for specimen ; B, insect too low on the pin ; C, insect tilted on the 

 pin. 



Figure 8. — Illustration of right and wrong methods of pinning : A, Correct height 

 and position for specimen ; B, insect too high on the pin ; C, insect tilted on the 

 pin. » 



The height of the specimen on the pin will depend somewhat on 

 the size of the specimen. In general, there should be enough room 

 at the top of the pin so that it may be handled without the fingers 

 touching the specimen. With a little practice this may be judged 

 accurately; if uniformity is desired, the specimen may be adjusted 

 to the desired height on the pin by using the pinning block shown in 

 figure 10. 



After being pinned, and before being permitted to dry (or after 

 being thoroughly relaxed if already dried), the legs, wings, and 

 antennae of the specimen should be properly arranged so they are 

 visible for study. The correct arrangement of legs and antennae for 

 grasshoppers and related forms is shown in figure 9, B. With many 

 insects, such as beetles, bugs, flies, and bees, it is only necessary to 

 arrange the legs and antennae and they will stay in place. With 

 grasshoppers, however, it is usually necessary to pin the specimens 



