COLLECTING IMAGOES. 



321 



to the length of the handle by inserting 1 more 

 joints of bamboo. Some butterflies are " high- 

 fliers." Nets made of stout muslin are useful 

 for sweeping the tops of grass and low herb- 

 age, and in this way multitudes of small in- 

 sects of various orders may be taken. Such 

 nets should be larger than the ordinary net. 

 Nets made of stout lace cloth are used for 

 capturing aquatic insects in pools and ditches. 

 For this purpose a scoop made of wire gauze 

 may also be advantageously employed. 



In the capture of insects the umbrella plays, ter Riiey.) The frame is 

 in the hands of a skilful collector, a very im- f ^^tt 

 portant part. It is used as a receptacle for side of the hat when not 

 insects which are beaten from the overhang- in *> and the handle 



. . used as a cane. 



ing branches, under which it is held in an 



inverted position while the operation of beating is going on. 



As the insects fall they must be caught and placed in the 



collecting-jars. (See 

 Plate XXII, Fig. 1.) 

 Collecting- jars are 

 of various sizes. For 

 Lepidoptera the one- 

 pound jars used by 

 Schering for hydrate 

 of chloral, which have 

 nicely ground glass 

 stoppers, are admira- 

 ble. In preparing 

 the jars the following 

 directions should be 

 closely attended to : 

 Place at the bottom 

 of the jar some lumps 

 of cyanide of potash, 

 over these place a few 

 pieces of paper loose- 

 ly crumpled and 

 rammed down so asj 



f 



FIG. 99. Folding Net. (After Riley.) a, Net-ring open ; 

 ft, enlarged view of joint and check ; c, ring folded aud de- 

 tached from ferule ; d, nut su;ik into end of ferule ; <, MTC\V 

 to hold Tlr.g in place ; /, illustrating manner of putting ring 

 and rod together. 



21 



