NO. Vi'1'2. 



A NEW PROCELSTERNA— FISHER. 



563 



A table of measurements of T adult Frocelsterna saxatilis is here 

 given, and for comparison measurements of 3 adult P. cinerea, including 

 the type, and of the same number of P. cerxdea. 



Table of measurements. 

 PROCELSTERNA SAXATILIS. 



a Wing tip broken. 



