. 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. THE niSTER BEETLES. 601 1142 (84(31). IIOLor^PTA fossu'lakis Say, .Jom-n. Phil. Acad. Nat Sci., V, ISLT,, 47; ibid. II, i^Tl. Itfsembles closely the iirecediug, diffei-ing only in the striation of the elytra. The first stria is short, extending not over a fourth of the elytra, the second still shorter and the third merely a trace. Males with a deep pit near thej front angles of thorax, this lacking in female
. 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. THE niSTER BEETLES. 601 1142 (84(31). IIOLor^PTA fossu'lakis Say, .Jom-n. Phil. Acad. Nat Sci., V, ISLT,, 47; ibid. II, i^Tl. Itfsembles closely the iirecediug, diffei-ing only in the striation of the elytra. The first stria is short, extending not over a fourth of the elytra, the second still shorter and the third merely a trace. Males with a deep pit near thej front angles of thorax, this lacking in females. Length 7- mm. (Fig. 230.) Sottthem half of State; frequent. April 6-June 27. Appears to be nmch more common in spring, j,. ^^ ^g This and the preceding are very close and time will (Original.) donbtless prove that they are the same, Say's name having priority. Tribe II. HISTRIXI. To this tribe belong a nnmber of genera, which live mainly in excrements or beneath bark. They vary much in form and have the mandibles capable of bei«ig applied to the front edge of the pro- sternum so as to conceal the mouth. Between the prosternal lobe and the prosternum proper is a suture, so that the former appears to be a distinct piece. In a number of genera the lobe is very wide, extending to the imder edge of the thorax and forming the floor of a cavity -which holds the antennae when the beetle is in repose. When so extended, the widened portion is called the "pectoral plate.'' Six of the twelve known genera of the tribe are repre- sented in Indiana, while a seventh probably occurs. KEY TO INDIANA GENERA OF HISTEINI. a. Antennal cavities beneath the front angles of the thorax, open in front, but closed more or less completely beneath by the pectoral plate. * h. Club of antenniE more or less oval, pubescent, and distinctly ringed or annulate; thorax without a lobe <m the side. c. Mandibles rather prominent, upper edge rounded; labrum trape- zoidal; antennal club broadly oval; el
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1910
