. 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 LAMELLrCOKN BEETLES. 991 21. Often altracted in large numbers to electric light; evidently pupates in moist places, as a number were thrown up in plowing a recently drained marsh. Listed under Ghalepus, which name was preoccupied. XXXI. LiGYRUS Burm. 1847. (Gr., "flexible.") This genus and the next are composed of moderate-sized, robust convex species, having the head armed with small tranverse

. 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 LAMELLrCOKN BEETLES. 991 21. Often altracted in large numbers to electric light; evidently pupates in moist places, as a number were thrown up in plowing a recently drained marsh. Listed under Ghalepus, which name was preoccupied. XXXI. LiGYRUS Burm. 1847. (Gr., "flexible.") This genus and the next are composed of moderate-sized, robust convex species, having the head armed with small tranverse Stock Photo
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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. THE LAMELLrCOKN BEETLES. 991 21. Often altracted in large numbers to electric light; evidently pupates in moist places, as a number were thrown up in plowing a recently drained marsh. Listed under Ghalepus, which name was preoccupied. XXXI. LiGYRUS Burm. 1847. (Gr., "flexible.") This genus and the next are composed of moderate-sized, robust convex species, having the head armed with small tranverse toothed ridges, alike in both sexes; clypeus rather ^triangular, always toothed; first joint of hind tarsi more or less elevated at its upper end. In Ligyrus there are small stridulating organs or rugose spaces on the inner surface of the elytra near the outer hind mar- gin. Two of the four known species have been taken in the State, and a third probably occurs. KEY TO INDIANA SPECIES OF LIGYEUS. a. Thorax Impressed in front and with a small tubercle on the front niur- gin; front tibisE with three teeth. 6. Clypeus with two teeth. 1851. gibboscs. 66. Clypeus with one tooth at middle. ruginasus. 00. Thorax not impressed nor t'uberculate; front tibiaj with four teeth, the upper O'Ue small; mesothorax hairy. 1S52. eelictus. 1851 (5869). LiGYEFS gibbosus DeG., Mem. Hist, des Ins., IV, 1768, 322. Oblong-robust, slightly broader behind. Reddish-brown to darli chest- ^ __ __ ^ nut-brown above, paler beneath. Tho- rax one-half wider than long, strong- ly convex, sides regularly curved from base to apex; surface rather finely, sparsely and unevenly punc- tate. Elytral punctures much coars- er than those of thorax, those on disk in somewhat regular rows; those on sides confused. Length 11- 10 mm. (Fig. 409.) Throughout the State; com- mon. April 18-September 27. Sometimes very abundant at electric lights. L. rw/y'""'*"-' Lee., reddish- brown, li'ngth 16.5 mm., is a southe

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