AGAPETUS FUSCIPES 



67 



cocoons when pupating, and the cocoon of 

 dorsalis is shown on Plate XIII. The larva, until 

 about to pupate, does not make a fixed case, 

 but has a home close at hand, to which it ma} 7 



Dorsal plate. 



FIG. 37. 



Genitalia of Rhyacophila do) 

 salis, <j , from the side. 



retreat in time of need. The genitalia of the 

 male appear in Fig. 37, and I have removed 

 one of the long side pieces in order to show the 

 arrangement of the interior parts. 



Family . . RHYACOPHILID^ 

 Genus . . Agapetus 

 Species . . fuscipes 

 Spurs, 2.4.4. 



Agapetus fuscipes is a small dark brown Agapetu 

 sedge, which on some rivers occurs in great fusclpes> 

 quantities. On the Lambourne and the Dever 

 caddis cases of the pupae, formed of little clumps 

 of stones attached to larger stones or to pieces 

 of wood, almost completely cover parts of the 

 river bed. The male has a horny plate-like 



