THE DRAGONFLIES (ODONATA) OF BURMA AND LOWER 

 SIAAl— II.« SUBFA^IILIES CORDLTLEGASTERIN^, CHLOR- 

 OGOMPHIN.E, AND GOMPHIN.F:. 



By Edward Bruce Williamson^ 



Of Bluff ton, Indiana. 



This paper is the second of the series, following the general plan 

 of and based on the collections described in Part I, namely: (1) A 

 collection made by Dr. W. L. Abbott in Lower Siam, and presented 

 to the U. S. National Museum; (2) a collection made by Mrs. A. V. B. 

 Crumb, presumably in the vicinity of Toungu, Burma, and owned 

 by the Academy of Natural Sciences of Philadelphia, and (3) a col- 

 lection made by Mr. R. A. Earnshaw for the present writer in the 

 Karenni and Toungu districts, Burma. My indebtedness to Mr. R. A. 

 Earnshaw requires a secontl acknowledgment. Since the publication 

 of Part I he has sent me material containing specimens of the 

 greatest interest and value, and necessitating at some future date 

 additional remarks on the Calopteryginae of Burma. Through the 

 kindness of M. Guillaume Severin, of the Musee Royale de I'Histoire 

 Naturelle de Belgique, I am enabled to figure in this i)aper the 

 venation of twelve specimens from the De Selys collection. These 

 photographs were made at the museum in Belgium. The pho- 

 tographs of other specimens were made in the laborator}- of Prof. 

 James G. Needham and under his direction. Mr. Samuel Henshaw 

 loaned me a few very valuable specimens from the Museum of Com- 

 parative Zoology, Cambridge, Massachusetts. M. Rene Martin not 

 only loaned me a number of specimens, but gave me others which have 

 been invaluable in this study. Through the good offices of Prof. F. 

 Foerster I purchased in Germany ' a collection containing many 

 Gomphines from Tonkin. Mr. C. C. Adams has loaned me a number of 

 specimens from India, Japan, and China. Dr. Philip P. Calvert has 

 been freely consulted regarding many details. 



In an effort to select a nomenclature for the wing veins that would 

 meet with the approval of students in this countr3^, at least, an exten- 



o See Part I. Subfamily Calopterygin.^, Proc. U. S. Nat. Mus. , XXVIII, pp. 165-187, 

 published April 22, 1905. 



Proceedings U. S. National Museum, Vol. XXXIII— No. 1 571 . 



267 



