THE STONE FLY AND ITS CRAB. 59 



the fish generally towards the end of the streams. 

 If May should be wet, or with full water, you 

 must not expect the sport which a bright frosty 

 time will give. 



STONE FLY, WITH THE WATER CRICKET, CREEPER, 

 OR CRAB OF THE STONE FLY. 



SEASON. The crab, from the end of April to the end of May. 

 The fly, from the end of May to the beginning of July. 



Natural. From the end of April till near the 

 middle of July, you will find, in the rocky and stony 

 rivers and brooks of Wales, under the loose stones 

 near the water's edge, and generally towards the 

 upper end of the stream, first the crab of the stone 

 fly, in shape like an earwig, but much larger, and 

 of a dark colour, nearly inclining to black. It has 

 two whisks and two feelers,, without wings. To- 

 wards the middle or end of a warm May, when 

 you perceive their empty cases sticking upon the 

 pebbles, are found, in the same places, the stone 

 fly, of a similar shape, but lighter and larger, being 

 a full inch in size. At their first appearance their 

 bodies are nearly black, except under the throat 

 and belly, which are of a strong yellow ; the six legs 

 are also of a dirty yellow. When they are nume- 

 rous, in the middle of June, the wings are lighter, 

 their bodies of a drab or stone colour, and the whisks 

 and legs much lighter. 



