Table 1.

The dominant (i.e. most species-rich) family or families in size classes across six regions. Where several families are grouped, they are similarly species rich. Note the two families (Sphecidae and Oecophoridae) that are species-rich only in Australia, these are shown in bold.

size class (mm)	Hilbre	Monks Wood	United Kingdom	North America	Australia	World
4.2–5.6	Muscidae	Muscidae	Muscidae	Muscidae	Miridae	Muscidae
Miridae	Miridae	Miridae	Miridae	Sphecidae	Miridae
5.6–7.5	Staphylinidae	Staphylinidae	Staphylinidae	Staphylinidae	Curculionidae	Curculionidae
Curculionidae	Curculionidae	Curculionidae	Curculionidae	Staphylinidae	Chrysomelidae
Chrysomelidae	Chrysomelidae	Chrysomelidae	Chrysomelidae	Chrysomelidae	Staphylinidae
7.5–10	Cicadellidae	Cicadellidae	Cicadellidae	Cicadellidae	Cicadellidae	Cicadellidae
10–13	Carabidae	Carabidae	Carabidae	Carabidae	Carabidae	Carabidae
13–18	Tortricidae	Tortricidae	Tortricidae	Scarabaeidae	Scarabaeidae	Scarabaeidae
			Tortricidae	Tortricidae
18–24	Pyralidae	Pyralidae	Tipulidae	Tipulidae	Cerambycidae	Cerambycidae
Tipulidae	Cerambycidae	Pyralidae	Pyralidae	Tipulidae	Pyralidae
Cerambycidae	Tipulidae	Cerambycidae	Cerambycidae	Pyralidae	Tipulidae
24–32	Geometridae	Geometridae	Geometridae	Geometridae	Geometridae	Geometridae
32–42	Noctuidae	Noctuidae	Noctuidae	Noctuidae	Noctuidae	Noctuidae
				Oecophoridae