1919-] F- C. Fraser : New Indian Odonata. 453 



The venation is identical with Zoniagrion, Kennedy, but 

 there the resemblance begins and ends, there being no bifid, dorsal 

 elevation on the loth abdominal segment of the male, nor spine 

 on the ventral surface of segment 8 in the female. 



Himalagrion exclatnationis, sp. nov. 



4 & & , ^ $ 5 , Sitong, ca. 4,000 ft., near Manghphu, Darjiling 

 Dist., 6-7-18 (S. Kemp). 13T4H2. 



Male. 



Head black, marked with wedge-wood blue as follows : — large, 

 subtriangular, postero-internal ocular spots ; a blue fascia across 

 the vertex and clypeus in front of the anterior ocellus ; the whole 

 of the labium except for a black, basal border which extends on 

 to the anteclypeus. Eyes dark brown above, pale olivaceous 

 beneath, the two colours being sharply contrasted at the equator 

 of the eyes. 



Prothorax black marked with wedge-wood blue of which there 

 is a fine, blue collar anteriorly and an irregular patch laterally. 



Thorax matt black marked with the same coloured blue as 

 sharply defined streaks and spots as follows : — a blue, humeral 

 stripe, broadest anteriorly and constricted at the junction of its 

 middle and posterior thirds, the sides broadly blue and traversed 

 low down by an irregular, black stripe which begins at the base of 

 the posterior trochanter. Tergum and bases of wings spotted with 

 blue. 



Legs pale blue, the femora streaked with black on the exten- 

 sor surfaces and the tibiae similarly on the flexor surfaces. 



Abdomen : ist segment blue marked with an irregular, black 

 streak, which runs obliquely backwards from the dorsum to the 

 ventrum, a black annule incomplete on the dorsum, apically; 2nd 

 segment blue with an irregular, oblong, black marking on the side, 

 which fuses with a black, apical annule. A triangular, black 

 mark on the posterior part of the dorsum, somewhat like a blunt 

 arrow-head, looking forward; 3rd segment blue with a broad^ 

 black annule just in front of the apex and a narrow one at the 

 apical border, lower part of sides and ventrum black ; 4th segment 

 similar but the apical annules have fused, enclosing a mere speck 

 of blue laterally ; 5th segment similar but the blue spot is absent 

 and the annules have extended forward, especially on the dorsum, 

 where there is a triangular projection into the blue, basally the 

 apical, black annule of the 4th segment has extended slightly on 

 to the dorsum of the 5th; 6th segment entirely black save for a 

 fine blue, basal annule, incomplete on the dorsum; 7th segment 

 black, its dorsum marked for the posterior three fourths with blue, 

 this marking narrowing from behind forward and with a lateral 

 indentation at the apical end ; 8th and 9th segments entirely blue, 

 but in some specimens the 8th has a finely stippled, black, lateral 

 line; loth segment black marked laterally with a small, blue spot 



