. 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 PIjAT bark BEETLES. 563 1072 (3302). SiLVANCs imbellis Lee, Proc. Phil. Acad. Nat. Sci., VII, 1854, 77. Elongate, rather narrow, depressed. Dark reddish-brown, subopaque, very deeply and densely punctured. Thorax slightly longer than wide, the teeth of front angles but slightly developed; disk finely and densely punc- tate ; hind angles obtuse. Length mm. Throughout the State; frequent. February 4-No
. 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 PIjAT bark BEETLES. 563 1072 (3302). SiLVANCs imbellis Lee, Proc. Phil. Acad. Nat. Sci., VII, 1854, 77. Elongate, rather narrow, depressed. Dark reddish-brown, subopaque, very deeply and densely punctured. Thorax slightly longer than wide, the teeth of front angles but slightly developed; disk finely and densely punc- tate ; hind angles obtuse. Length mm. Throughout the State; frequent. February 4-November 8. Occurs in damp localities, often beneath the bark of Fig. 211. (After Chit- tenden, Far. Bull. No. 46.) II. Cathartus Reiche. 1854. (Gr., "to cleanse Small brown forms very close to Silvanus but having the middle club joint larger than either of the others; thorax broader than long except in quad- ricollis. Two s]iecies have been taken in the State, while two others may occur. KEY TO INDIANA SPECIES (JF CATHAKTUS. u. Thorax either subiiuadrate or longer than wide, its sides nearly straight; body very feebly punctate. (Fig. 211.) QUADKICOLLIS. an. Tliorax broader than 7). Front angles of thorax each with a distinct tooth, c. Second and third .joints of antennie subequal; head and thorax minutely and densely punctate; form broader and more convex. 1073. advena. ISC. Second joint df anteume distinctly longer and stouter than third; head and thorax densely granulate-punctate; form more slender. 1074. LONGULrs. l)h. Front angles of thorax not toothed. eectos. ('. quadricollis Gruer., elongate, slender, pale reddish-brown, shining, length mm., is known from Pennsylvania and Georgia. 1073 (3305). Cathaetcs advena Waltl., Silb. Rev. Ent, II, 256. Oblong, subeonvex. Rather pale chestnut lirown, shining, finely pubescent. Thorax quad- rate, one-third broader than long, sides feebly curved, front angles with minute blunt teeth, hind ones rectangular.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1910
