446 



Annals of the South African Museum. 



observable for some little distance up the branches. Only a single 

 egg is laid in each puncture. 



In localities where there are no overhanging trees the eggs must be 

 deposited in the stalks of rushes, small bushes, etc., but I have not yet 

 succeeded in finding any in such situations. 



The larva grows to a length of about 35 mm., and is brown or 

 greeny-brown, more or less mottled with darker and lighter patches. 

 The caudal gills have a broad transverse dark band across the middle. 



The body is slender. Eyes very prominent. Pedicel of antenna 

 slender and elongate. Labium extending back to bases of second pair 

 of legs ; mentum oblong, narrowing posteriorly, median lobe not very 



CliJorolestes conspicua. 



Larva, mask and ca\idal gill. Twig showing- punctures for insertion of eggs. 



All enlarged. 



prominent, bilobed with rather deep almost closed cleft; lateral lobes 

 moderately slender, ending in two teeth, the inner longer than the 

 outer, movable hook long and slender ; no mental or lateral setae. 

 Legs slender. Abdomen strongly keeled laterally. Caudal gills 

 simple, broadly ovate, apically rounded, secondary tracheae oblique. 



In habits the larva lives very openly and swims freely, preferring a 

 clear stony or sandy bottom with not too much vegetation. 



The similarity of the larva to that of Synlestes is apparent, and fully 

 confirms the correctness of Eis' proposal (supra, p. 268), based on the 

 wing structure of the imago, to remove Chlorolestes from the Aarionidae 

 and to place it in the Lestidae. 



