36 WILLIAM MORTON WHEELER. 



the American species, however, are apterous. Mr. Beutenmuller 

 has given me some notes on the habits of this insect. He found it 

 living in colonies of fifty or more individuals, old and young to- 

 gether, burrowing in stumps, most frequently of oak trees, that 

 had nearly or quite reached the red stage tf ligneous decay. 

 The burrows were sharply defined and close together and re- 

 minded him of the burrows of the beetle Passalns cormitus. 

 Here we have a resemblance to the termites not only in the rude 

 social life but also in the wood-boring habit. 



Further observations on Dasyposoma and other Blattidae are 

 much needed and may perhaps enable us completely to bridge 

 the gap that separates the rudimental social instincts of such in- 

 sects from the complex social instincts of the Termitidae. The 

 recent revival in the study of termites certainly calls for a re- 

 newed interest in the habits of the much neglected Blattidae. 



o 



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Audouin, V. and A. Brulle. 



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