I92I. 



F. F. Laidlaw : Iniian Dras.oiiflies. 



85 



2 not known. 



In respect to the colour and colour-pattern of the abdomen 

 this specimen differs strongly from A and approaches C. 

 In other respects it is not \^ery different from A. 

 Length of hinder-wing 54 mm., of abdomen 56 mm., of upper 

 anal appendages 6 mm. 

 Series C. (text- fig. j). 



3 cy o» 1 9 . Sitong, Darjiling district, 1405/H 2 (with 2 

 exuviae); i c (spirit specimen). 



Wings smoky especially at the apices. Membranule entirely 

 gray black. No yellow tinge on hinder wings. 



Bead. — Upper lip with well defined, narrow, black margin, 

 Frons with large T-mark. Occipital triangle black. 



Thorax with black mid-dorsal carina and sutural lines. Base 

 of anterior femora yellow, the rest black. 



.^Mo;«<:«.— Segment 2 with a longitudinal, mid-dorsal line of 

 black joining the black transverse carinae and the jugum, 3 with the 

 dorsal black band broader in the prejugal division than it is in 

 series A and B. The ground colour of the rest of the abdomen is 

 an intense black, with pale blue spots. 



On the post-jugal part of segment 3 both the lateral spots are 

 small, the anterior one minute. On 

 segments 4 — 8 the anterior supra- 

 carinal spot remains very small, but is 

 larger on 6, 7, 8 than on 4, 5. The 

 prejugal spot is obsolete on 7, 8. Seg- 

 ment 9 has a single small snot homo- 

 logous with the posterior supra-carinal 

 spot of 8 ; 10 is black with indistinct 

 lateral brown marks. Segments 4 — 7 

 have narrow blue inter-carinal spots 

 close behind the jugum on either side. 

 The upper anal appendages are 

 black, and differ in shape from those 

 of series A and B. The middle third 

 of the inner margin of each projects onwards as a straight-edged 

 shelf. The lower appendage is whitish gray with black margins. 



The female is in general very much like the male, but the spots 

 of the last six segments of the abdomen are brownish-yellow and 

 not blue, and the tenth segment carries a pair of well defined small 

 spots. The blue colouring of the sides of 2, 3 is largely replaced 

 by greenish brown, and in additi(m there is a pair of infra-carinal 

 spots immediately below the intercarinal spots on segments 4, 5. 

 Length of hinder- wing, cr' 56 mm., 9 57 mm. 

 of abdomen, o* 55 mm., 2 55 mrn. 

 of upper anal appendages, c^ 6-2 mm. 



Were it not for the existence of the specimen of series B 

 I should certainly regard those of series C as belonging to a species 

 distinct from A. 



'I'kxt-fig. ^. — Ana.\ giiftahis 

 (^ Series C. 

 .\na1 appendages. 



