. Bulletin. Agriculture; Agriculture. U2 Bulletin No. 159 pose. In the swift streams of mountain regiors these beetles of the family Hydrophilidae and Dytiscidse are not commonly seen. They appear not to endure buffeting well enough to hold their own in such waters. But their places are taken by others which are perfectly able to take care of themselves in the swiftest currents. One of the whirligig beetles was observed repeatedly in both creeks and rivers, often lurking in sheltered nooks among partly submerged rocks, but striking out in the swift current if pursued and when pressed diving to
. Bulletin. Agriculture; Agriculture. U2 Bulletin No. 159 pose. In the swift streams of mountain regiors these beetles of the family Hydrophilidae and Dytiscidse are not commonly seen. They appear not to endure buffeting well enough to hold their own in such waters. But their places are taken by others which are perfectly able to take care of themselves in the swiftest currents. One of the whirligig beetles was observed repeatedly in both creeks and rivers, often lurking in sheltered nooks among partly submerged rocks, but striking out in the swift current if pursued and when pressed diving to the bottom. These beetles are ex- clusively aquatic, their form and flattened middle and hind. Fig. 21.—Expanded legs ot the whirligig beetle, Dtneutes dtscolor. a, right hind leg; /', right middle leg. Greatly magnified. legs rendering them strong swimmers and unsuiting them for locomotion on the land. They have four compound eyes, or at any rate four independent divisions, two looking downward in the water and two looking upward. The only species collected was Dineutes discolor. It is shining black with an olivaceous cast, in some lights with purple and bronzy reflections, especially about the head and the anterior edges of the wing covers. Eyes in preserved examples, reddish brown. Body rapidly contracted forward from the middle of the wing covers and meeting evenly behind with angles little evident and margin not serrulate. Labrum protruding, rounded, with a dense silken white. 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 Kentucky Agricultural Experiment Station. Lexington, Ky. , : The Station
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectagriculture, bookyear
