4RrT. 21. DRAGONFLIES OF BURMA AND LOWER SIAM—LAIDLAW. pqs 
The species has an extensive range, apparently from Sikkim to 
Formosa, and as far to the southeast as the Celebes. The single speci- 
men has the anal appendages exactly similar to those figured for 
the species by Ris from a specimen from north Celebes; the coloring 
is much faded. 
Length of abdomen 50 mm., of hinder wing 38 mm., of anal appen- 
dages 4.5 mm., and of pterostigma 3.25 mm. 
LIST OF ORIENTAL SPECIES OF GENUS GYNACANTHA. 
1. G. furcata Rambur...............Borneo (female type) (furcata?). 
2. G. subinterrupta Rambur.........Celebes, Java and Lombok, Ceylon. 
3. G. hyalina de Selys.............-Formsa and the Philippines, lower Siam (2 
males), Assam (females). 
4. G. basiguttata de Selys........... Burma and Indo-Chinese Peninsula. Through 
Malay Peninsula and Islands to Philippines 
and Celebes, reaching apparently the Loo 
Choo (Rhu Kyu) Isands to the north. 
DG acuNUalisNaTsC hee sys awe a. Java. 
6. G. musa Karsch.............--..Java, New Guinea? 
7. G. dohrni Kruger..............--Sumatra, Java, Borneo. 
8. G. machlachlani Kruger......-..- Borneo. 
9. G. khastaca MacLachlan ......... Assam. 
10. G. saltatriz Martin..............Mangaldai district of Assam (1 male). Tonkin 
(male type). 
Hileoe GuardenreleniiVISh emu esate: aie) OLN O. 
BZy 1G TUUMCGM AS! 2 hys (S22 oh ee a North Celebes. 
Pan G. Penelope WIS. .s2 7 3.8.2) voces. North Celebes. 
14. G. japonica Bartenef............ Formosa, Japan. 
ae G Sonallard pebraser iy. 2) wllen sony. a8 Northern Peninsular India. 
16. G. bayadera de Selys......-.--.- Sikkim to Formosa, and southeast to the 
Celebes. 
SUMMARY OF ORIENTAL SPECIES OF AESCHNINAE. 
The number of species (or well-marked subspecies) allowed in the 
above account for each genus is tabulated below:” 
Jagoria 6. Amphiaeschna 2. 
Linaeschna 1. Aeschna 3. 
** Austroaeschna’’ 2. Tetracanthagyna 4. 
“* Cephalaeschna’’ 5.1% Anaciaeschna 2. 
Periaeschna 1. Anax 6. 
Heliaeschna 6. Gynacantha 19. 
Making a total of 57 species in all. 
Aeschnophlebia de Selys from Japan is regarded by Ris as coming 
near Brachytron. As it is probably a Palaearctic form it is omitted 
in this list. 
12In this summary the species recently described by Fraser have been included. These species are 
not treated in the text and are only mentioned in footnotes. 
13 One of these has been removed to a new genus, see footnote 4. 
