530 ENTOMOLOGICAL INSTRUMENTS, &C. 



one end of your stick. When not employed, they double 

 the hoop and conceal it under the vest ; they fix to it a 

 muslin bag of two feet long. This net is made to serve 

 various purposes. With it they catch Lepidoptera and 

 other Jlying insects; and an adroit collector by giving it a 

 certain twist completely closes the mouth, so as to prevent 

 the escape of his captives. Fixed to a very long pole 

 (Mr. Haworth says it should be twenty or thirty feet 

 long a ), it is the best net for the purple emperor butterfly 

 (Apatura Iris). It is also used with success to push be- 

 fore you through the grass of meadows, woods, &c., and 

 thus often displaces numerous insects, which fall into it ; 

 every now and then it is examined, and the valuable 

 captures secured. The common bag-net will perform 

 the same operations, but is not deep enough for Jlying 

 insects. If you lengthen your stick before you screw it 

 on, it enables you to brush with it the weeds at the sides 

 and bottom of ditches. This employment of brushing 

 the grass, &c. may be carried on if you are walking with 

 any friend not interested in Entomology, without much 

 interruption of conversation. For this last operation 

 sweeping the grass, &c. if you wish at any time to de- 

 vote a morning wholly to it, you will find a net invented 

 by the late Mr. Paul, of Starston in Norfolk, and which 

 he employs to clear his turnips of Haltica Nemorum b i a 

 very useful implement. The accompanying figure will 

 give you a better idea of it than any description c ; you 

 may make it large or small according to your conveni- 

 ence : the wider it is, the greater space it will brush at 



Lepidopt. Britann. 20. b VOL. I. p. 187. 



PLATE XXIV. FIG. 3. 



