THE CANADIAN ENTOMOLOGIST 117 



exposed well to view. In some genera it is important to open the 

 mandibles and expose the male genitalia. Any such treatment is 

 always better accomplished in relaxed specimens than in fresh 

 ones, the parts in the latter tending to return to their former 

 positions. Every specimen should be labelled with the date and 

 locality of capture, and the collector's name v/ritten or printed in 

 very small, clear letters on a small, white card. Collect preferably 

 only newly emerged, unfaded specimens, not dusted with pollen, 

 and do not be afraid to make a large collection. How pleasantly 

 the collector can spend an hour now and then during our long 

 winter, arranging the summer's material into species, according to 

 similarities in sculpture and livery, guided by nature, musing the 

 while on the possible value to the species of some remarkable struc- 

 tures or pattern of colours! A study of the insects in the field, or 

 of their marvellously diverse and interesting nesting habits, will 

 confute or endorse many a theory thus formed. 



SOME DRAGONFLIES FROM PRINCE EDWARD ISLAND. 



BY E. M. WALKER, TORONTO. 



Somewhat more than a year ago I received from Dr. A. G. 

 Huntsman, Curator of the Dominion Biological Station, St. 

 Andrews, N.B., a number of dragonflies, including a few nymphs, 

 which he very kindly collected for me during a few days spent in 

 Prince Edward Island in the summer of 1915. 



Hitherto there have been apparently no records of dragonflies 

 from this Province, so that, although the number of species listed 

 here is small, and doubtless represents but a fraction of the Odonate 

 fauna of this island, it seems worth while to record them. 



All of the species are widely distributed, and with one exception 

 all could have been predicted almost with certainty to occur in 

 this region. 



The localities and dates of collection are as follows: — 



Charlottetown, pond in Victoria Park, Aug. 3. 



Souris, pond on New Harmony Road, Aug. 1. 



Little Harbour, near Souris, Aug. 14. 



Souris, Sept. 5. 



Rollo Bay, Aug. 21. 



April. 1917 



