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BULLETIN 67, UNITED STATES NATIONAL MUSEUM. 



of storing material are useful on extended collecting trips. Some 

 collectors put up the larger insects, as Orthoptera, beetles, bees, etc., 

 in tubes of paper. The insect while yet fresh is laid on a piece of 

 soft paper, which is then rolled fairly tight around it and the ends 

 tucked in. Others make tubes of various sizes by wrapping a piece 

 of soft paper around a lead pencil or other cylindrical object, and 

 turning in one end. Then put the insects in the tube and plug up the 

 other end with cotton. All tubes and boxes of dried specimens 

 should be packed in larger boxes with plenty of flake naphthalene. 

 In relaxing such specimens for pinning one should put the papers 

 or tubes into a relaxing jar, and not attempt to remove the insect 



Fig. 111.— The paper envelope foe Lepdjoptera, and method of folding it: 1, first fold; 2, 



second fold, etc. 



while dry from its cover. Collectors sometimes put up Coleoptera 

 and Hemiptera in glass vials with clean sawdust, dampened with 

 9 parts alcohol and 1 part carbolic acid. A layer of sawdust is 

 placed in the bottom, then a layer of insects, then a layer of sawdust, 

 etc. It keeps them slightly moist so they can be easily pinned, but 

 they require cleaning with a fine brush before they are suitable for 

 the cabinet. Lepidoptera and Neuroptera should be put in papers; 

 beetles, Hemiptera, and Orthoptera may be packed in boxes, tubes, 

 or sawdust, or even in alcohol; Hymenoptera, and especially Diptera, 

 should be pinned on all trips; in fact it is better to mount at least 

 one or two specimens of the Coleoptera, Hemiptera, and Orthoptera. 



