VI SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I4I 



Page 



Insecta 224 



Hymenoptera 234 



Predators and parasites of cockroach eggs 234 



Host selection by egg parasites 254 



Cockroach-hunting wasps 255 



Ants predaceous on cockroaches 266 



XIII. Vertebrata associated with cockroaches 268 



Pisces 268 



Amphibia 269 



Reptih'a 272 



Aves 276 



Mammalia 283 



XIV. Checklist of cockroaches and symbiotic associates 290 



XV. Cockroaches as commensals 308 



Hosts of commensal cockroaches 309 



Checklist of commensal cockroaches with their hosts 313 



Obscure associations 314 



XVI. Cockroaches as predators 317 



Interspecies predation 317 



Intraspecies predation 320 



XVII. Associations among cockroaches 322 



Familial associations 323 



Gregariousness 328 



Intraspecies fighting 334 



Interspecies compatibility 335 



Interspecies antagonism 339 



XVIII. Defense of cockroaches against predators 341 



XIX. The biological control of cockroaches 346 



Invertebrates 347 



Vertebrates 351 



Acknowledgments 352 



References 354 



Index 439 



