72 A VEXATIOXAL STUDY OF THE ZYGOPTERA 



TilKard, R. J. 1915. On the dexelopment of the wing venation in Zygopterous 

 dragonflies, with special reference to the Calopter\gidae. 

 L. c, 40: 212-230, tigs. 



1916. Further researches upon the problems of the radial and zygopterid 

 sectors in the wings of Odonata, and upon the formation of bridges. 

 L. c, 41:871-887, 6 figs. 

 Williamson, E. B. 1901. The dragonflies of Indiana. 

 Report Dept. Geol. Indiana, 24: 229-333. 



1904(a). The dragonflies (Odonata) of Burma and Siam. I. Subfamily 

 Calopteryginae. 

 Proc. U. S. Nat. Mus., 28: 165-187, figs. 



1904 (b). A new species of Psolodesnins (order Odonata) from Formosa. 

 Entom. News, 15:247-250, i pi. 



1913. The medio-anal link in the Agrioninae. 

 L. c, 24: 258-261. 



1915. Notes on neotropical dragonflies or Odonata. 

 Proc. U. S. Nat. Mus., 48: 601-638, pis. 36-40. 



1916. A new dragonfly genus of the legion Protoneura, (Odonata). 

 Entom. News, 27:30-33, figs. 



191 7. Some species of Leptagrion with descriptions of a new genus and a new 

 species (Odonata). 



L. c, 28: 241-255, pis. and figs. 



Explanation of Plates 

 Plate I 



Fig. I. — Wings of Epiophlehia super stes Selys. (Female, Cornell Collection.) 



Fig. 2. — Hind wing of Polythore gigantea Selys. (IVIale, Cornell Collection.) 



Fig. 3. — Hind wing of Eiithore fasciata Selys. (Female, Cornell Collection.) 



Fig. 4.— Hind wing of Chakopteryx rutilans Rambur. (Male, Cornell Collection.) 



Plate II 



5. — Hind wing of Cora marina Selys. (Male, Cornell Collection.) 



Fig 

 Fig 

 Fig 

 Fig 

 Fig 

 Fig 



6. — Hind wing of CUmacohasis modesta Laidlaw. (Male, after Williamson.) 

 7. — Front wing of Echo margarita Selys. (Female, after Selys.) 

 8. — Hind wing of Archineura basilactea Kirby. (Male, after Kirb>-.) 

 9. — Hind wing of Umnia longhtigma Selys. (Male, Cornell Collection.) 

 10.— Hind wing of Sapho cilkita Fabricius. (Female, Acad. Nat. Sci. Phila- 

 delphia.) 



Plate III 



Fig. II. — Hind wing of /4 ^rzo)? I'/rgo Linnaeus. (Female, Cornell Collection.) 

 Fig. 12. — Hind wing of Matronoides cyaneipeunis Foerster. (Male, after Foerster.) 

 Fig. 13. — Hind wing of Matrona japonica Foerster. (Female, Cornell Collection.) 

 Fig. 14. — Front wing of Neurobasis chinensis Linnaeus. (Female, Cornell Col- 

 lection.) 

 Fig. 15. — Front wing of Mnais pruinosa Selys. (Male, Cornell Collection.) 



