COl.EOPTERA. 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^E. 



The Beaver-parasite, p. 529 Family PLATYPSYLLIDA;. 



The Leptinids. p. 529 Family LEPTINIDJE. 



The Carrion-beetles, p. 529 .Family SILPHID^E. 



The Scydmaenids. v S3 1 Family SCYDM^NID^. 



The Pselaphids. p. 531 Family PSELAPHIDJE. 



The Rove-beetles, p. 532 Family STAPHYLINID^E. 



The Feather-wing Beetles, p. 533. 



Family TRICHOPTERYGID^E. 



The Hydroscaphids. p. 533. ...Family HYDROSCAPHID.E. 



The Sphaeriids. p. 533 Family SPH^RIID^;. 



The Scaphidiids. p. 533 Family SCAPHIDIID.E. 



The Phalacrids. p. 534 Family PHALACRID^E. 



The Corylophids. p. 534 Family CORYLOPHIDJE. 



The Lady-bugs, p. 534 Family COCCINELLIDA:. 



The Endomychids. p. 535 Family ENDOMYCHID^:. 



The Erotylids. p. 536 Family EROTYLID^E. 



The Colydiids. p. 537 Family COLYDIID/E. 



The Rhyssodids. p. 537 Family RH YSSODID^E. 



The Cucujids. p. 537 Family CucujlD^E. 



The Cryptophagids. p. 538 Family CRYPTOPHAGID.E. 



The Mycetophagids, p. 538 Family MYCETOPHAGID/E. 



The Dermestids. p. 538 Family DERMESTID^E. 



The Histerids. p. 541 Family HISTERID^:. 



The Nitidulids. p. 541 Family NITIDULID^E. 



The Trogositids. p. 542 Family TROGOSITID^;. 



The Monotomids. p. 542 Family MONOTOMID^E. 



The Lathridiids. p. 542 Family LATHRIDIID^;. 



The Derodontids. p. 542 Family DERODONTID^E. 



The Pill-beetles, p. 542 Family BYRRHID.E. 



The Georyssids. p. 543 Family GEORYSSID.E. 



The Parnids. p. 543 Family PARNID^E. 



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. 

 33 



