. Bulletin - United States National Museum. Science. [69] COLLECTING AND PRESEEVING INSECTS Fig. 95.—Method of pinning and labeling Coleoptera (original). care all insects can be prepared for the cabinet so tliat botli the npper and nnder surface of the specimen may be examined without fnrther manipulation. Finning,—"Insects should be pinned through the middle of the thorax, when, as is more generally the case, this portion (the mesothorax) i s largely developed. Beetles (Coleoptera) and Bugs {Hemiptera), should, however, be pinned, the former through the right elytron or wing-cov
. Bulletin - United States National Museum. Science. [69] COLLECTING AND PRESEEVING INSECTS Fig. 95.—Method of pinning and labeling Coleoptera (original). care all insects can be prepared for the cabinet so tliat botli the npper and nnder surface of the specimen may be examined without fnrther manipulation. Finning,—"Insects should be pinned through the middle of the thorax, when, as is more generally the case, this portion (the mesothorax) i s largely developed. Beetles (Coleoptera) and Bugs {Hemiptera), should, however, be pinned, the former through the right elytron or wing-cover (Fig. 95), and the latter through the scutel or triangular piece behind the thorax, the pin issuing between the middle and hind legs (Fig. 96). The specimens look very j)retty with all the legs neatly spread out, but for practical purposes it is better to let them dry in the natural, partly bent position. It is a saving of time and space, and the limbs are not so apt to break. The legs must also not reach too far downward or they wiU interfere with the proper labeling and the secure pinning of the specimen in the cabinet Moreover, the antennae and legs must be brought into such position that they will not obstruct the view of any important part of the under- surface. The pin should always project about half an inch above the insect to facilitate handling, and uni- formity in this regard will have much to do with the neat appearance of the collection. In pinning very large and heavy insects on a ISTo. 4 or ISTo. 5 pin, it is a good plan to first flatten the pin by a few blows of a hammer, in order to prevent the specimen from subsequently turn- ing round on the ; In i)inning sijecimens which have a flat or nearly flat undersurface and short legs (as in many Coleoptera and Hemiptera and some Hymenoptera, e. g. the Saw- flies) the specimens are laid on a piece of cork and held in place there with the fingers or with a forceps. The i3ia is then pushed through the in
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