Elementary lessons on insects (1928) Elementary lessons on insects . elementarylesson00need Year: 1928 178 ELEMENTARY LESSONS ON INSECTS A heavy net with a shorter handle and a bag of stout muslin (called a beating net) may be used with advantage for sweeping vegetation. This will obtain many kinds of insects in all stages where few are ordinarily seen—pro- tectively colored insects that hide in the grass and weeds. Fig. 61.—Nets for insect collecting. X, an air net; Y, a water dip net; Z, a simple method of attaching home-made rim and handle. With either net, when the insects have been sw
Elementary lessons on insects (1928) Elementary lessons on insects . elementarylesson00need Year: 1928 178 ELEMENTARY LESSONS ON INSECTS A heavy net with a shorter handle and a bag of stout muslin (called a beating net) may be used with advantage for sweeping vegetation. This will obtain many kinds of insects in all stages where few are ordinarily seen—pro- tectively colored insects that hide in the grass and weeds. Fig. 61.—Nets for insect collecting. X, an air net; Y, a water dip net; Z, a simple method of attaching home-made rim and handle. With either net, when the insects have been swept inside, a quick turn of the wrist closes its mouth and keeps them there until a cyanide bottle can be introduced to receive them. A little practice will enable any one to use these tools effectively. A dip net for individual collecting should be shallow and flat bottomed (so that the catch can be seen in it before removal). It should have a rim stiff enough to stand pushing in and out among water weeds. For use in common by mem- bers of a class the most generally useful sort is a sieve net,
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