170 THE CANADIAN ENTOMOLOGIST 



Fig. 12. Boyeria grafiana. — Abdominal appendages of female 

 nymph. 



Fig. 13. Boyeria vinosa. — Labium. 



Fig. 14. Boyeria vinosa. — Abdominal appendages of female 

 nymph. 



Fig. 15. Nenrocordidia yamaskanensis. — Nymph. 



Fig. 16. Neiirocordidia yamaskanensis. — Terminal abdominal 

 segments of female nymph. 



Fig. 17. Neurocordulia yamaskanensis. — Lateral view of ab- 

 domen. 



Fig. 18. Neurocordulia ohsoleta. — Terminal abdominal seg- 

 ments of female nymph. 



Fig. 19. Neurocordulia obsoleta. — Lateral view of abdomen. 



Fig. 20. Leucorrhinia intacta. — Dorsal view of head. 



Fig. 21. Leucorrhinia intacta. — Terminal abdominal segments 

 of female nymph. 



Fig. 22. Leucorrhinia intacta. — Lateral view of abdomen. 



Fig. 23. Leucorrhinia frigida. — Dorsal view of head. 



Fig. 24. Leucorrhinia frigida. — Terminal abdominal segments 

 of female nymph. 



Fig. 25. Leucorrhinia frigida. — Lateral view of abdomen. 



Fig. 26. Somatochlora semicircidaris. — Dorsal view of head. 



Fig. 27. Somatochlora semicircular is. — Terminal abdominal 

 segments of male nymph. 



OBITUARY. 



Mr. Franklin A. Merrick died December 16th, 1912, at New 

 Brighton, Pa., at the age of 68 years. He was well known as a 

 diligent and successful collector of Lepidoptera, of which he ac- 

 cumulated a large number of species. Though engaged in busi- 

 ness pursuits for a great many years, he found time to dev^ote him- 

 self to this Department of Entomology, and maintained a cor- 

 respondence with others of similar tastes in man}^ parts of the 

 continent. His collection, which was large and valuable, is now 

 in the possession of Dr. Barnes, of Decatur, 111. 



