4rT. 21. DRAGONFLIES OF BURMA AND LOWER SIAM—LAIDLAW. 29 
1898. KruGer, L. 
Die Odonaten von Sumatra, part 2. Familie Aeschniden, Stettin entomol. 
Zeit., 1898, pp. 267-231. 
1908. Martin, R. 
Collections Zoologiques du Baron Edm, de Selys-Longchamps. Catalogue 
systematique et descriptif, fase. 18, Aeschnines, pp. 1-84, pls. 1-2. 
1909. Martin, R. 
Idem. Fasc. 19, Aeschnines, pp. 85-156, pls, 3-4. 
1910. Martin, R. 
Idem. Fasc. 20, Aeschnines, pp. 157-223, pls. 5-6. 
1911. Rus, F. 
Libellen von Sintang, Borneo, Ann. Soc. Entom. Belg., vol. 55, 1911, pp. 
231-255, text figs. 1-16. 
1913: Ris, We 
Neuer Beitiag zur kenntnis der Odonaten-Fauna der Neu-Guinea-Region, 
Nova Guinea, vol. 13, Zool. Livr. 2, pp. 81-131. 
1913a. Ris, F. 
Odonaten von den Aru- und Kei-Inseln. Abh. d. Senckenburg. Naturfors. 
Gesells, vol. 34, pl. 23. 
1914. Larpiaw, F. F. 
Zoological Results of the Abor Expedition 1911-12. Odonata, Rec. Ind. 
Mus., vol. 8, pt. 4, pp. 335-349, pl. 16. 
1915. Ris, F. 
Fauna simalurensis, Odonata, Tijdschr. v. Entom., vol. 58, 1915, pp. 1-21 
(sep.). 
1916. Ris E. 
H. Sauter’s Formosa-Ausbeute. Odonata, Separatabdruck aus Supplementa 
Entomologica, No. 5, Juni 9, 1916, pls. 1-3. 
1920. Latpuaw, F. F. 
Contributions to a study of the Dragonfly Fauna of Borneo, pt. 4. A list of 
species known to occur in the Island. Proc. Zool. Soc. Lond., 1920, pp. 
311-342. 
EXPLANATION OF PLATE. 
Fia. 1. Lateral view of apex of abdomen of ‘‘Cephalaeschna,’’ species, female, allied 
to sikkima Karch. Drawn from a specimen from Assam in the collection of 
the Indian Museum. 
2. Lateral view of apex of abdomen of Periaeschna magdalena, female. From 
a specimen from the Garo Hills, Assam, in the collection of the Indian 
Museum. 
3. Lateral view of apex of abdomen of Heliaeschna idae, female. From a speci- 
men from Borneo, in the collection of the author. 
4. Lateral view of apex of abdomen of Tetracanthagyna brunnea, female. From 
a specimen from Jalor, Siamese Malay States, in the collection of vhe 
author. 
5. Lateral view of apex of abdomen of Gynacantha dohrni, female. From a 
specimen from Borneo, in the collection of the author. 
