FLIES AND THEIR WATER BABIES 67 



find they are only the dry, empty skins from 

 which the flies have escaped. 



The larvae of the Sand-flies like briskly run- 

 ning water, and are often found in little rivulets 

 or streams flowing down a hill- side. The flies 



THE CHILDREN OF THE SAND-FLY. 



often cluster together in numbers on the trees 

 and bushes by the water- side. They are 

 delicate little flies, with two gauzy wings, rather 

 humped backs, and large eyes. 



The larva of the Sand-fly is a quaint little 

 object, looking something like an absurd little 

 doll dressed in a long, tightly- fitting black 

 frock. On each side of its tiny head it has a 

 fan-shaped tuft of fine hairs, and just below 

 its head two tiny legs stand stiffly out like 

 stumpy little arms. This funny little creature 

 creeps about the plants under the water like 



