6 TABLE OF CONTENTS. 
AQuaTics—Concluded. 
Nepide.— PAGE 
Taxonomy of Family....co. 2000 neice WO eee 151 
Biology of Family 2) 0 oe) asa ne ee 157 
Notonectide— 
Taxonomy: of: Family.) 3. 0ei eat oe en eee 164. 
Biology of Family... 5 02) See ee ee 107 
Naucoride— 
Taxonomy of Family: ANG 3030 2.005 ee eee 198 
Biology of Family........ a ata, SYR ON Si Say ee Oe a a a 207 
Corixide— : 
Taxonomy of Family.2) 2). 0 @ inj s is ae ee 210 
Biology of ‘Family: 33): oa ee Oa ee ee ae 215 
(Food:of CorixidS)).i) eens RO ae 234 
GENERAL REVIEW) 20005036022 Fe ON fe) Sexl Se aN cote a 250 
BIBLIOGRAPHY © 0.) cs Age ia, ets ec ee en 251 
PLATES 00 ody ee 266 
THE MALE GENITALIA AS CHARACTERS OF SPECIFIC VALUE IN CERTAIN 
CRYPTOCERATA (HEMIPTERA-HETEROPTERA) .........--eeeeeeeees 329 
