1920.] 



F. F. Laidi<a\v : Indian Dragonflies. 



149 



either side of the dorsal crest ; sides of thorax pale olivaceous 

 green, — The olivaceous colour of the sides of the thorax is 

 continued broadly on the sides of the first and second abdominal 

 segments, and narrowly along the sides of the third to the fifth 

 and part of the sixth segments ; abdomen above with a large spot 

 occup3'ing most of the first segment bronzy green, and the 

 second wholly of this colour ; from the third to the tenth 

 bronze black, but there is a long bluish space on the third and 

 fourth, which are black only at base and apex. Legs black ; 

 the femora brownish beneath. 



" a* Superior appendages black, quite one-half longer than the 

 tenth segment, slender, forcipate, the tips regularly incurved, 

 finely denticulate externally in the apical half ; internally a 

 basal tooth, the usual dilatation commences in an obtuse and 

 ends below the apex in a large triangular tooth, inferior appen- 



I'ext-fig. I. — X'enstion Lestes '! sp. from Borneo (Coll. Sarawak Mas.)- 



" dages scarcely one-fourth length of superior. Length of abdomen 

 " 57 mm., of hind-wing 36-39 mm." 



I am enabled by the kindness of iMessrs. H. and F. B. Campion 

 to give a figure of a Bornean Lestine, undescribed I believe ; a 

 male in bad condition. This specimen agrees in venation with 

 MacLachlan's account of Orolestes selysi very closely as may be seen 

 by an examination of text- figure i. The only differences are : 

 (i) the absence of opaque colouring, and (ii) the shape of the 

 quadrangle. MacLachlan's definition of the genus gives, "lower 

 side twice the length of inner." (The italics here are mine.) 



Not having seen an authentic specimen of Orolestes I cannot 

 speak with certainty on the matter, but I think it possible that 

 for inner we should read upper. In that case the Bornean speci- 

 men would, except for wmg-colour, fall into the definition of the 

 genus Orolestes. In any case it seems to me that we may regard 

 the species as intermediate between the true Lestes and Orolestes. 



