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UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 417 



Contribution from the Bureau of Entomology 

 L. O. HOWARD, Chief 



Washington, D. C. 



PROFESSIONAL PAPER 



July 25, 1917 



THE GENUS CALOSOMA 



INCLUDING STUDIES OF SEASONAL HISTORIES, HABITS, AND 



ECONOMIC IMPORTANCE OF AMERICAN SPECIES NORTH 



OF MEXICO AND OF SEVERAL INTRODUCED SPECIES 



DIff« IKS* 

 B y U.S. KATLc «!S4 



A. F. BURGESS, in Charge of Gipsy Moth and Rrown-tail Moth 

 Investigations, and C. W. COLLINS, Entomological Assistant 



CONTENTS 



Page 



Introduction 1 



History of the Genus Calosoma .... 3 

 General Seasonal History of Species of 



the Genus Calosoma . 4 



Number of Generations of Calosoma . . 6 

 Food Habits of Adults and Larvae of Calo- 

 soma 6 



Economic Importance of the Species of 



Calosoma 7 



Limits on Increase of Species of Calosoma 8 



Experiment to Determine the Climbing 



Habits of Calosoma Larva? 9 



Natural Enemies of Calosoma 10 



Methods of Shipping Calosoma Beetles . 13 



Methods of Rearing Calosoma Beetles . 14 



Classification of Calosoma 16 



General Remarks 20 



Descriptions of 38 Species of Calosoma, 

 with Notes on Seasonal History and 



Habits 21 





H.$. barb: 



COLLECTION 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1917 



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