. Elementary entomology. Insects. METHODS OF COLLECTING INSECTS 333 insects from escaping. An improved form of this net consists of an outer sack with square in place of tapering bottom, the sack to be made out of cheesecloth, cotton cloth, or some such material. On the inside of this is fitted a short, funnel-shaped net made out of bobbinet or light cheesecloth. This net has an opening of about two inches at the bottom. In sweeping, the insects pass down through this opening between the two nets and are unable to es- cape. In this way great numbers of grass insects may be collected without st
. Elementary entomology. Insects. METHODS OF COLLECTING INSECTS 333 insects from escaping. An improved form of this net consists of an outer sack with square in place of tapering bottom, the sack to be made out of cheesecloth, cotton cloth, or some such material. On the inside of this is fitted a short, funnel-shaped net made out of bobbinet or light cheesecloth. This net has an opening of about two inches at the bottom. In sweeping, the insects pass down through this opening between the two nets and are unable to es- cape. In this way great numbers of grass insects may be collected without stopping to remove them from the net. The insects may be stupefied by placing the entire net in a pail together with a piece of cotton saturated with ether. For aquatic collecting certain other types of nets are desirable, although the ordinary insect net may sometimes be used to advantage. Water dip net (Fig. 468). The frame of this type of net is usu- ally flattened on one side so as to allow the net to be manipulated. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sanderson, Dwight, 1878-1944; Jackson, C. F. (Cicero Floyd), b. 1882. Boston, New York [etc. ] Ginn and Company
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