120 ANNUAL EEPORT. 



There is great need of further investigation in this subject, and we are glad to 

 learn that it is about to receive attention from so competent hands as Dr. 

 Packard's. * 



The systematic position of the sub-order is still a matter of doubt, and it is not 

 yet possible to make any positive classification of the divisions of the Ento- 

 mostraca. 



(See Plates XYIII. and XIX.) 



