354 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I4I 



cockroach control because the reptiles are docile and harmless. On 

 Arno Atoll geckos and night- feeding skinks eat large numbers of 

 cockroaches (Usinger and La Rivers, 1953). According to Wolcott 

 (1924) the number of cockroaches eaten by lizards is surprisingly 

 large considering the nocturnal habits of these insects. Beebe (1925a) 

 kept geckos in a bungalow to help control Periplaneta and Pycno- 

 sceliis. 



Mammalia. — Cowan (1865) stated that in England hedgehogs were 

 often kept domesticated in kitchens to destroy cockroaches. This 

 writer also stated that a lemur was kept on board ship to destroy 

 cockroaches. 



Large numbers of the American and Australian cockroaches were 

 eaten by the mongoose in Hawaii (Perkins, 1913). 



ACKNOWLEDGMENTS 



We would have been unable to complete this review without the 

 help of many people who have generously given us their time and the 

 benefit of their special experience. We are exceedingly grateful to 

 these individuals for they have contributed much to whatever merit 

 this work possesses ; we alone are responsible for the deficiencies and 

 inaccuracies that remain in the text. 



Dr. A. B. Gurney, Entomology Research Division, U. S. Depart- 

 ment of Agriculture, and J. A. G. Rehn, Academy of Natural Sciences 

 of Philadelphia, have given us much help and advice throughout the 

 preparation of this monograph. Both have patiently answered our 

 many queries, and Mr. Rehn allowed us free access to his large 

 collection of cockroach literature. We are especially pleased to thank 

 them for their many favors. 



Many persons have determined at our request the identity of specific 

 organisms. These individuals are cited in the text and to them we 

 extend our thanks. We thank our colleagues, cited in the text, who 

 have made their unpublished observations available to us. We also 

 thank the individuals and organizations for the use of photographs 

 and/or drawings for which they are credited in the accompanying 

 legends. 



We thank the following individuals for supplying us with living 

 specimens of the species indicated: T. Campbell, Commonwealth 

 Scientific and Industrial Research Organization, Canberra, New 

 South Wales (Panesthia australis) ; Dr. L. R. Cleveland, Harvard 

 University (Cryptocercus punctulatus) ; Dr. N. T. Davis, University 

 of Connecticut {Byrsotria fumigata) ; Dr. F. Englemann, Albert 

 Einstein Medical School {Gromphadorhina portentosa) ; Dr. F, A. 



