Volume 4 covers suborder Polyphaga: superfamilies Byrrhoidea, Buprestoidea, Dryopoidea, Elateroidea, Cantharoidea, Derodontoidea, and Bostrichoidea.
From the introduction:
"The 16 families covered in this part comprise the Series Elateriformia and Bostrychiformia of Crowson (1960). The 123 genera included are more than the number previously treated in individual parts of this series, but any reduction would have entailed breaking up the above natural groups.
The proportion of Australasian genera (A) in this part is 41% (51 genera), whilst 28% (34) are cosmopolitan (C) and 13% are Bassian (B). Of the remainder, four genera are Eyrean (E), four are Gondwanan (G) (generally shared between Australia and South America), three are South Australian (SA), and the remainder are introduced from the Palaearctic, Oriental or African regions, or are genera which cannot be named at present and whose distribution is not known. There are eight of the latter, all in the Elateridae. They have received letter designations and can be referred to in the future under the family name and the letter (for instance, Elateridae Genus F). A total of about 380 South Australian species is included in the 123 genera, 67 of which have only one known species in the State. There are few large genera, the largest being Castiarina (Buprestidae), with some 60 South Australian species."
Introduction 1
Acknowledgments 1
Suborder Polyphaga (continued from Part 3) 3
Superfamily Byrrhoidea 3
Family Byrrhidae 3
Superfamily Buprestoidea 3
Family Buprestidae 3
Superfamily Dryopoidea 5
Family Heteroceridae 5
Family Limnichidae 5
Family Elminthidae 6
Family Psephenidae 6
Superfamily Elateroidea 6
Family Elateridae 6
Family Throscidae 7
Family Eucnemidae 8
Superfamily Cantharoiclea 8
Family Lycidae 8
Family Cantharidae 9
Superfamily Derodontoidea 9
Family Jacobsoniidae 9
Superfamily Bostrichoidea 9
Family Dermestidae 9
Family Bostrichidae 10
Family Anobiiclae 11
Family Ptinidae 12
References 14
Keys (Plates 1-28) 16
Illustrations (Figures C1-C17, 1-108) 44
Index 66