V 



COLEOPTERA, 497 



DD. The Clavicornia (Clav-i-cor'ni-a) or Clavicorn Beetles. 



— Isomera in which the first ventral abdominal segment is 



visible for its entire breadth, and in which the antennae are 



usually clavate or capitate, but not lamellate. 



The Water Scavenger Beetles, p. 527. 



Family Hydrophilid^.^ 



The Beaver-parasite, p. 529 Family Platypsyllid^. 



The Leptinids. p. 529 Family Leptinid^. 



The Carrion-beetles, p. 529 Family Silphid^. >' 



The Scydmienids. p. 531 Family Scydm^nid.^. 



The Pselaphids. p. 531 Family Pselaphid^e. 



The Rove-beetles, p. 532 Family Staph ylinid^. )( 



The Feather-wing Beetles, p. 533. 



Family Trichopterygid^. 



The Hydroscaphids. p. 533 Family Hydroscaphid^. 



The Sph^eriids. p. 533 Family Sph^rhd^. 



The Scaphidiids. p. 533 Family SCAPHIDHD^. 



The Phalacrids. p. 534. •• • Family Phalacrid^. 



The Corylophids. p. 534 .Family Corylophid^. 



The Lady-bugs. p. 534 Family CocciNELLiDiE. 



The Endomychids. p. 535 Family Endomychid^. 



The Erotylids. p. 536 . . Family Erotylid^. 



The Colydiids. p. 537 Family COLYDIID.E. 



The Rhyssodids. p. 537 Family Rhyssodid^. 



The Cucujids. p. 537 Family CucujiDiE. 



The Cryptophagids. p. 538 Family Cryptophagid^. 



The Mycetophagids, p. 538 Family M YCETOPHAGiDyE. 



The Dermestids. p. 538 ... Family Dermestid^. 



The Histerids. p. 541 Family Histerid^. 



The Nitidulids.- p. 541 . . . . . . . . . . .. . .-Fatntly-mTiDULiD^: 



The Trogositids. p. 542 Family Trogositid^. 



The Monotomids. p. 542 Family MoNOTOMiDiE. 



The Lathridiids. p. 542 Family Lathridiid^. 



.The Derodontids. 'p. 542 Family DERODONTiDiE. 



The Pill-beetles, p. 542 Family Byrrhid^. 



The Georyssids. p. 543 Family Georyssid^e. 



The Parnids. p. 543 ... , Family ParniDvE. 



The Heterocerids. p. 543 Family Heterocerid^e. 



DDD. The Serricornia (Ser-ri-cor'ni-a) or Serricorn Beetles. 



— Isomera in which the first ventral abdominal segment 



is visible for its entire breadth, and in which the antennae 



are usually serrate. 



/ 



