. Bulletin - United States National Museum. Science. 94 BULLETIN 67, UNITED STATES NATIONAL Fig. 145.—A wa- ter BOATMAN, NOTONECTA IRRORATA. Many Heteroptera hibernate in the adult condition under the loose bark of dead trees, on the ground under fallen leaves, or under pieces of wood in fields. By searching in such places late in the autumn or early in spring one may obtain many varieties. For the large family of Capsidse (fig. 21) June is the best season. Sweeping herbage, meadows, and the foliage of trees will bring many of these fragile insects into the net. The best times of the
. Bulletin - United States National Museum. Science. 94 BULLETIN 67, UNITED STATES NATIONAL Fig. 145.—A wa- ter BOATMAN, NOTONECTA IRRORATA. Many Heteroptera hibernate in the adult condition under the loose bark of dead trees, on the ground under fallen leaves, or under pieces of wood in fields. By searching in such places late in the autumn or early in spring one may obtain many varieties. For the large family of Capsidse (fig. 21) June is the best season. Sweeping herbage, meadows, and the foliage of trees will bring many of these fragile insects into the net. The best times of the year to collect aquatic Hemiptera (figs. 145, 146), Mr. Bueno says, are the spring and autumn. Mr. Bueno uses a couple of water nets, cyanide bottles of several sizes, tin boxes for living specimens, and a pair of rubber boots. These insects should not be collected in alcohol, except for anatomical purposes, and should be mounted as soon as possible. The water-bugs can be easily kept in aquaria, but since many are predaceous one can keep only a few in each vessel. HEMIPTERA-HOMOPTERA. The Homoptera may be obtained b}T sweeping herbage or beating trees. Many of them are mounted on points, but some may be pinned witli micro-pins as double mounts. Some species occur commonly in a short-winged or brachypterous condition; one should look care- fully in the proper situations for the macropterous or long-winged specimens. It is well to have one or two specimens of each species with the wings spread, as these organs are sometimes colored and the dorsum of the abdomen has bright markings. The plant-lice (fig. 26) may be collected in alcohol, but are better brought home in tin boxes and mounted in balsam on slides. It is well to take note of their colors before killing them. It is necessary to obtain the various forms and stages, so that the same plant should be visited at different dates; some species migrate to other plants in the latter part of the season, so that one will have to s
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