. 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. *32 FAMILY IV. BTTlSnil,!!:. D. marfjinalis Linn., D. subliiitbatiia Lee. and D. dauricus Gebl., are all boreal species which may oei-nr in northern Indiana. 452 (1491). Dytiscus hakbisii Kirby, Faun. Bor. Amer. 1S37, 76. Broadly oval. Thorax at base, apex and sides broadly bordered with yellow. Elytra with marginal stripe nar- rowed only near apex, and with a narrow subapical cross- ]>ar as in rcrticaUs.
. 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. *32 FAMILY IV. BTTlSnil,!!:. D. marfjinalis Linn., D. subliiitbatiia Lee. and D. dauricus Gebl., are all boreal species which may oei-nr in northern Indiana. 452 (1491). Dytiscus hakbisii Kirby, Faun. Bor. Amer. 1S37, 76. Broadly oval. Thorax at base, apex and sides broadly bordered with yellow. Elytra with marginal stripe nar- rowed only near apex, and with a narrow subapical cross- ]>ar as in rcrticaUs. Abdominal segments reddish-yellow margined with piceous. Length 38-40 mm. (Fig. 117.) Lake and .Marion counties; rare. June 26. Our Fig. 117. Two-thirds largest End best marked species. The ^Marion C'oun- natural size. , ⢠⢠- , i -r^ t i , ⢠(After wiciiiiam.) tv Specimen IS m the Dury collection. XX. Hydaticus Leach. 1817. CGr., "found in the ;) ^Moderate sized, convex, regularly oval species having the thorax not margined; prosternal spine with a rather broad oval expansion, and olrtuse or rounded at apex: hind tarsal claws unequal, the inner one the longer. The dilated front tarsi of males bear numerous subequal disks, the middle tarsi being also broadly dilated and with four rows of disks. Three species have been taken in the State, â while another may occur. KEY TO SPECIES OF HYDATICUS. a. Rows of punctures on upper face of hind tibire distant from one an- other and parnllel with outer border of tibifp. h. Above reddisU-brown ; sides of thorax dull yellow. 453. picEUS. hi). piceous: thorax rcdilish with a black basal cross-bar. ('. Elytra each with four or five narrow dull yellow lines. STACiA'.MIS. re. Elytra uniform piceinis. the nuirgin only paler. 455. 'KNNIS. (Id. Kows of punctures on upper face of hind tibiae rather close tojiclher and not parallel with hind margins; thorax as in tttaijiialis; elytra with a sub
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1910
