Dec, 1921 Bulletin of the Brooklyn Entomological Society 



117 



Hebridae 4 Found in wet places ; predatory. 



Mesoveliidae i Predatory. 



Nabidae 21 Predaceous. 



-Cimicidae 4 On blood of birds, bats, man. 



Anthocoridae 34 Mostly predatory. 



Termatophylidae i ? 



Miridae 398 Plant feeders. 



Isometopidae 4 Found in shaded situations. 



Dipsocoridae 3 ? 



Schizopteridae i Found by sifting leaves, rubbish, 



etc. 



Hydrometridae 2 Aquatic ; predatory. 



Gerridae 18 Aquatic ; predatory. 



Veliidae 15 Like those of Gerridae. 



Saldidae 32 On shores of rivers, etc. ; pre- 

 daceous. 



Notonectidae 18 Aquatic ; predatory. 



Naucoridae 13 Aquatic; predatory.- 



Nepidae 8 Aquatic ; predatory. 



Belostomidae 20 Aquatic ; predatory. 



Gelastocoridae 5 Predatory. 



Ochteridae 3 Predatory. 



Corixidae 55 Aquatic ; vegetable feeders (pre- 

 datory ?). 



Cicadidae 74 Plant feeders. 



Cercopidae 25 Plant feeders. 



Membracidae 185 Plant feeders. 



Cicadellidae 698 Plant feeders. 



Fulgoridae 357 Plant feeders. 



Chermidae 137 Plant feeders. 



The families and species in the above table can be roughly 

 grouped, according to their food habits, about as follows : 



No. families. No. species. Per cent, of total. 



Phytophagous 17 2,611 89 



Harpactophagous ... 17 321 li 



Animal parasites i 4 



Habits obscure 4 9 



39 2,945 100 



On account of the large percentage which is phytophagous it is 

 easily understood why the economic status of the order is impar- 



