152 THE CANADIAN ENTOMOLOGIST. 



The conslruciion of llie apparalus will readily be understoud, and the 

 application thepcof, by the diagram and the following description : Take 

 a strip of board four or five inches wide, or about as wide as the diameter 

 of the jar, by one half inch or three-quarters inch thick, and long enough 

 to reach up from the ground to the cornice, and when so placed it will be 

 about five or six inches back from the suspended lamp. The funnel having 

 been formed out of the sheet of paper, being about twelve or fourteen 

 inches in diameter at the top and about one and one-quarter inches at the 

 bottom and about fifteen to eighteen inches high, is secured to the strip of 

 board with a thin narrow batten or lath nailed on the inside of the funnel 

 apd through to the board at such a height that when in place the light will 

 be just below the top of the funnel. The bottle or jar is then put in place, 

 with the mouth tightly fitting against the outside of the funnel, and is 

 retained in its place by a narrow cleat nailed on the board and up against 

 the bottom of the jar, and is kept rigid with an elastic rubber band passed 

 around it from side to side, about half way up its height, and the band 

 slipped over a nail driven into the edges of the board. The jar can be 

 removed instantly at any time by simply disengaging the rubber band 

 from the nails. 



The board, with funnel attached, may be kept in some suitable place 

 when not in use. At the approach of dusk the bottle is slipped into its 

 place and the board set up behind the lamp, if the board is of the proper 

 length no other means is required to keep it in place except contact with 

 the ground and cornice. The trap is left out all night to entice all winged 

 inquisitive individuals, and is taken down in the morning, the jar removed 

 and stopper put in. On the approach of the following evening the 

 contents may be removed and the trap again set. The operator will have 

 a full evening's entertainment assorting the material of the previous night's 

 catch, taking care of the prized individuals and noting the common species. 



During some evenings insects may be much more numerous than 

 upon others, but the writer has repeatedly noticed that no matter how 

 unpropitious the early part of the evening may be, the morning may find 

 some highly-prized object an inmate of the trap, and by keeping up the 

 trap-setting nightly, from early until late in the season, one is enabled to 

 capture not only the transient fliers, but also to note the dates of the 

 coming and going of those species which are on the wing for a lengthened 

 period. 



The details of installing the trap may of course be varied to suit the 

 requirements of the situation. 



