TABLE OF CONTENTS 



PAGE 



Preface 2 



Introduction 6 



Suborders (Key) 9 



Series or Superfamilies (List and Key) 10 



Families (Keys) : 



Cupesidae 16 



Micromaltidae 16 



Rliysodidae 16 



Cicindelidae „ 17 



C'arabidae 17 



and 18 



Oniophronidae 17 



Haliplidae 17 



Hyg:robiidae 17 



Noteridae 17 



Dytiscidae 17 



and 23 



Amphizoidae 17 



Gyrinidae 24 



Paussidae 25 



Lininebiidae 26 • 



Hvdroscaphidae 26 



Ptiliidae 26 



Leptinidae '. 26 



Anisotomidae (= Liodidae) 26 



(Clambidae)''' — 



Platypsyllidae 27 



(Branthinidae)*'' ■ — • 



Scaphidiidae 27 



(Clavigeridae)^'^ — 



(Spliaeritidae) -" — 



(Sphaeriidae)**' : — 



Silphidae 27 



Staplivlinidae 27 



Pselaphidae 30 



(Micropeplidae)^*^ 31 



Histeridae 31 



Ilelopboridae 32 



Spercheidae 32 



Hydrochidae 32 



Hydrophilidae 32 



