. Bulletin. Science; Natural history; Natural history. HESPEROCIMEX REARED IN MAGNETISM 91. Fig. 1. Permanent magnet with rearing unit in place between the poles of the magnet. magnetic forces on cimicids of the genus Hesperocimex. Preliminary studies were conducted with Hesperocimex sonorensis Ryckman 1958. Subsequent and more detailed studies were completed using a population of Hesperocimex cochimiensis Ryckman & Ueshima 1963. In our opinion this is the first report of cimicid bugs having been reared for a complete generation, egg to egg, in permanent and electromagnetic fields. Ex- per
. Bulletin. Science; Natural history; Natural history. HESPEROCIMEX REARED IN MAGNETISM 91. Fig. 1. Permanent magnet with rearing unit in place between the poles of the magnet. magnetic forces on cimicids of the genus Hesperocimex. Preliminary studies were conducted with Hesperocimex sonorensis Ryckman 1958. Subsequent and more detailed studies were completed using a population of Hesperocimex cochimiensis Ryckman & Ueshima 1963. In our opinion this is the first report of cimicid bugs having been reared for a complete generation, egg to egg, in permanent and electromagnetic fields. Ex- perimental colonies of H. cochimiensis were reared in small circular plastic con- tainers (diameter cm x depth cm) fitted between the pole pieces of a Cinaudagraph fixed magnet Type , as shown in Figure 1. This magnet produced a force of 4000 gauss between the poles. The control colonies were placed in a dummy or simulated magnet, , between two circular iron pieces x 6 cm. The water-cooled electromagnet was made by Precision Scientific Co., Electromagnet R-3, #76246; this electromagnet developed 14,000 gauss be- tween the poles under the condition of its use. The power supply used 110-120 volts at 5 amps. In this case the experimental colonies were reared in blotter paper wafers held in place between the poles of the electromagnet. (The blotter paper wafers were made by cutting cm circular holes in laminated layers of paper built up to 3 mm in thickness.) The bugs were held inside the wafers by fine mesh cloth glued on both sides of the blotter paper. A second set of control colonies was placed in a simulated magnet consisting of two circular pieces of iron as mentioned above. All eggs used in this study came from a common pool, and were less than 16. 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 o
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