It.—A NOTE ON SOME BORNEAN OOONATA, WITH DESCRIPTION 
OF A NEW SPECIES, —By F. F. LaIDLAW. 
The following note is the second * to be published on 
the Odonata of the Sarawak Museum, which I have 
had the opportunity of examining recently. It is 
intended to publish further notes on these collections 
as they become classified and determined. The small 
samples already sent to me show that we have yet to 
learn much of the Odonata of Borneo. 
Subfamily, Libellulin/e. 
Orchithemis xanthosoma, sp. n. 
Male .—Length of hind* wing 23 5 mm. 
Length of abdomen (without appendages) 
18 mm. 
Discoidal field of both wings consisting of a single 
row of cells; in the front-wing almost to the wing- 
margin, in the hind-wing nearly to the level of the 
nodus. 
No anal area developed in the hind-wing. Only 
two rows of cells between the anal nerve and the hind 
margin of the wing. 
Abdomen not depressed, tapers very gradually. 
Seen from the side the hamulus of segment 2 pro¬ 
jects more directly downwards from the abdomen than 
is the case in either of the other species of the genus. 
Lobus of segment 2 very minute, scarcely to be dis¬ 
tinguished from the margin of the segment. 
Colour.— Prothorax, olive green above. 
Thorax above is velvety black, except in front where 
it fades into a golden brown. On the sides and below, 
an olive green. 
Abdomen 1, greenish yellow; 2-7, golden brown 
with black margins and carinse. 
* For previous note on Bornean Odonata see Journal of Strait* Branch 
Jloyal Asiatic Society, No. 57, pp. 190—193 1911. 
