Carbon disulphide, carbon tetrachloride 

 and other liquids can be used to fumigate 

 the collection to rid it of pests immediate- 

 ly. These, however, have no protective ef- 

 fect against reinfestation after three or four 

 days. 



Fumigant Holder. The most satisfactory 

 method devised for holding fumigant is the 

 Ward Fumigant Holder. (See Fig. 30.) 

 This consists of a small cardboard box 

 which is filled with repellent and has a 

 fine wire mesh cover. The fumigant hold- 

 er is securely pinned in one corner of the 

 box. The lower right hand corner is rec- 

 ommended for this purpose. The fumes 

 pass thru the wire mesh but none of the 

 substance itself can shake about and dam- 

 age specimens. 



Fig. 30. A convenient and safe device for 

 holding fumigant. 



Storing Preserved Specimens. The stor- 

 age of specimens preserved in alcohol pre- 

 sents several problems. It is necessary that 

 the bottle or vial in which the specimens 

 are kept be stored so that they can be in- 

 spected periodically and the vials easily 

 refilled with preservative. The containers 

 should be stored upright so that the liquid 

 does not come in contact with the cork. 

 An excellent means of accomplishing this 

 with a minimum amount of space is used 

 in the Cornell University collection. It 

 consists of fashioning a copper wire hook 

 around the neck of each bottle, (See Fig. 

 31a). These are then hung in vertical 

 frames of galvanized wire mesh by means 

 of the hook. (See Fig. 31b). The frames 

 are made to slide into runs or grooves in 

 a cabinet and large numbers of specimens 

 can be stored in a relatively small amount 

 of Space where they arc readily available 

 for Inspection or removal. 



The best liquid preservative is 75% al- 

 cohol. 



Fig. 31. Storing insects in alcohol. 



Naming the Insects 



Why the Scientific Name? We have al- 

 ready discussed the mechanics of storing 

 and housing an insect collection. In ad- 

 dition, advice -and information on labels, 

 data, field and accession notes has been 

 given. Whenever possible in arranging 

 specimens in an insect collection, it is best 

 to follow taxonomic order: i. e., a system- 

 atic scheme based upon the scientific clas- 

 sification and names of your specimens. 

 The scientific name of an animal is made 

 up of two parts; the first of which is known 

 as the generic name (for example, genus 

 Fapilio), and the second or specific name 

 (species ajax). The first is always capital- 

 ized while the second is never capitalized. 



The uninformed layman frequently asks 

 "Why use these long scientific names for 

 insects?" If one stops to consider, however, 

 common names really do not mean much 

 to scientific workers because several insects 

 may have the same common name. Take 

 the potato beetle for example. Some peo- 

 ple think of the striped Colorado Potato 

 Beetles, others the Black Potato Beetle or 

 the Blister Beetle, and a few may think of 

 the little flea beetle which makes "shot 

 holes" in the leaves. On the other hand 

 many insects have different common 

 names; the Corn Ear Worm, for example. 

 In trucking sections the growers call it the 

 Tomato Fruit Worm, because it feeds on 

 tomatoes, and in the south it is called the 

 Cotton Boll Worm. If we call it Heliothis 

 obsoleta. anyone working in the field of 



