4 
610 
INDIAN DRAGONFLIES. 
BY 
Major F. C. Fraser, I.M.S., F.E.S. 
Part XIII. 
{Continued from i>age 492 of this Volicme.) 
(With h Text-figures.') 
* Fig. 1. i. Terminal segments of abdomen of jEschna erythromelas showing 
{a) dentigerous plate, ii. The same of JEschna ornithocephala. 
Group — Brachyteon. 
The genera included in this group are characterized by the symmetrical fork- 
ing of B.S (5th nervure) and by the presence of only a single row of cells between 
Rs and Rs^l (5th nervuie and 5a ) and between Miv and Mspl (7th ner\mre and 
7a). (An exception is Jagoria in which Rs is unforked.) 
The eyes are generally smaller and less contiguous than in group Anax ; the 
frons usually broad or very broad, the occiput small and simple. The wings are 
long and broad or narrow, the reticulation open or close, the base of the hind- 
wing usually excavate and angulated in the male, rounded in the female, the 
stigma variable, long and narrow or short and broad. 
The dentigerous plate of the female is variable, subrotundate, denticulate or 
forked. The anal superior appendages of the male usuaUy lanceolate, the in- 
ferior subtriangular. 
* This figure was omitted from the previous i>art and should have been 
included under the description of JEschna erythromelas. Vol. XXVIII, No. 2, p. 490, 
