. 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. 260 FAMILY VI. sometimes indistinct. The beetles usually occur in numbers along the edges of ponds, lakes and .streams and rise to the surface when the water is made turbid. Five species have Ijeen taken in Indiana, while another may occur. KEY TO INDIAKA SPECIES OF PHILHYDRl'S. 0. Above paler, brownish-yellow to i)ale piceous. h. Prostemum distinctly carinate; lengrth mm. 503. XEiiiLo
. 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. 260 FAMILY VI. sometimes indistinct. The beetles usually occur in numbers along the edges of ponds, lakes and .streams and rise to the surface when the water is made turbid. Five species have Ijeen taken in Indiana, while another may occur. KEY TO INDIAKA SPECIES OF PHILHYDRl'S. 0. Above paler, brownish-yellow to i)ale piceous. h. Prostemum distinctly carinate; lengrth mm. 503. XEiiiLosrs. /*;*. Prosternum not carinate. c. Smaller, not over 4 mm.; mesosternal lamina very feeble, the front edge without distinct angle. 504. ochracels. cc. , 4-6 mm.; mesosternal lamina prominent, with a distinct angular (/. Thorax with a large discal pieeous space. oii'i. iiamiltom. (?(?. Thorax entirely dull yellow. diefisis. aa. Above black or iiiceous black, the margins sometimes pale. c. Larger. r>.."i-7 mm.; transversely very convex. 506. cinctus. ec. t^nlllller. not over mm.; subdepressed. 507. PEKPtExus. 503 (Kliili). PHiLHYDKrs NEBT-'LOsrs Say. Long's Exped., II, 1S24, 277: ibid. I, 1S3. Oval, slightly oblong, convex. Above variable from pale to dull brown- ish-yellow, shining; head and under-surface pieeous. Thorax and elytra sparsely and Indistinctly punctured, the usiial rows of coarser punctures scarcely visible. Length â mm. Throughout the State; common. ^lay 2i. 504 (1630). Philhydecs ochbaceis ilelsh., Proc. Phil. Aead. Nat. Sii., II, 1844, 101. Elliptical, less convex. Above pale pieeous or dull smoky brown, shining; head darker, with a pale space in front of each eye; margins of thorax and elytra paler: beneath pieeous. the tibia- and tarsi paler. Thorax and elytra distinctly and rather closely punctate, the dorsal rows very indistinct. Length :!.5â1 mm. (Fig. 128.) Xorthern half of State; roinnion; less so in
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1910
