. An illustrated descriptive catalogue of the coleoptera or beetles (exclusive of the Rhynchophora) known to occur in Indiana : with bibliography and descriptions of new species . Beetles. XVIII. CoLYMBETES Clairv. 1.806. (Giv, "dive-i-swim.") Rather large elongate beetles having the side-; of thorax oblique, not margined; scutellum punctate; elytra Aith very fine transverse stria}. The males have the anal segment triangularly emarginate and joints 2 and 3 of front and middle tarsi clothed with small equal disks. One .species occurs in Indiana. 448 (1474). CoLYMBETES scxjLPTiLis Har
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. An illustrated descriptive catalogue of the coleoptera or beetles (exclusive of the Rhynchophora) known to occur in Indiana : with bibliography and descriptions of new species . Beetles. XVIII. CoLYMBETES Clairv. 1.806. (Giv, "dive-i-swim.") Rather large elongate beetles having the side-; of thorax oblique, not margined; scutellum punctate; elytra Aith very fine transverse stria}. The males have the anal segment triangularly emarginate and joints 2 and 3 of front and middle tarsi clothed with small equal disks. One .species occurs in Indiana. 448 (1474). CoLYMBETES scxjLPTiLis Harr., N. Eng. Far., 1829, 8. Elongate-oval. Verte.x black with two small paler spots ; thorax, front of head and margins of elytra dull yellow, the thorax with .i black transverse discal bar; disk of elytra darker; under surface black, legs and hind mar- gins of abdominal segments reddish-brown. Length 16 mm. (Fig. 114.) Occurs sparingh" along the .shore of Lake Michi- gan ; not noted eUewhere but should occur. iMay &"k^a'i.) 5-June26. Tribe IIL DYTISCINL Diving beetles of large or medium size, easily distinguished by the peculiar dilated form of the front tarsi of the males. In these the first three .joints form a circular cushion with small disks on thi- under side. Tlie middle tni-si are also frc(|uently dilated, the joints l)cing ()l>]ong with varionsly ai-rang!>d disks oi' suckers beneath. Sometimes, as in Aritkis, there are three well-marked sizes of disks on the same foot. The tribe is represented in the United States by six genera, five of which occur in Indiana.. 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 work.. Blatchley, W. S. (Willis Stanley), 1859-1940. Indianapolis : Nature Pub. Co.