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./e. 
The Beaver-parasite, p. 529.Family Platypsyllid.e. 
The Leptinids. p. 529.Family Leptinidje. 
The Carrion-beetles, p. 529.Family SilphidjE. 
The Scydmaenids. p. 531.Family ScYDM/ENiDiE. 
The Pselaphids. p. 531.Family PsELAPHiDiE. 
The Rove-beetles, p. 532.Family Staphylinidas. 
The Feather-wing Beetles, p. 533. 
Family Trichopterygid^e. 
The Hydroscaphids. p. 533.Family HYDROSCAPHiDiE. 
The Sphaeriids. p. 533.Family SpHjERUDjE. 
The Scaphidiids. p. 533.Family SCAPHiDUDiE. 
The Phalacrids. p. 534.Family Phalacridje. 
The Corylophids. p. 534.Family CorylophidjE. 
The Lady-bugs. p. 534.Family Coccinellid;e. 
The Endomychids. p. 535.Family Endomychid^e. 
The Erotylids. p. 536.Family EROTYLiDiE. 
The Colydiids. p. 537.Family COLYDiiDiE. 
The Rhyssodids. p. 537.Family Rhyssodid^e. 
The Cucujids. p. 537.Family Cucujid.e. 
The Cryptophagids. p. 538.Family CRYPTOPHAGiDiE. 
The Mycetophagids. p. 538.Family Mycetophagidje. 
The Dermestids. p. 538.Family Dermestidje. 
The Histcrids. p. 541.Family Histeridje. 
The Nitidulids. p. 541.. Family NlTiDULiDiE. 
The Trogositids. p. 542.Family Trogositidje. 
p. 542.Family MoNOTOMiDiE. 
p. 542.Family LATHRiDiiDiE. 
p. 542.Family Derodontid^e. 
p. 542.Family Byrrhid^e. 
p. 543.Family GEORYSSiDiE. 
543.Family Parnidje. 
p. 543.Family Heterocerid^e. 
The Monotomids. 
The Lathridiids. 
The Derodontids. 
The Pill-beetles. 
The Georyssids. 
The Pam ids. p. 
The Heterocerids. 
D DD. 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. 
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