282 THE DRY-FLY MAN'S HANDBOOK 



Tinodes. Spurs 2, 4, 4. 



Tinodes wcsneri. A small light-brown sedge with 

 reddish body. Found on many British rivers, but 

 particularly plentiful on Lough Arrow, where the 

 boats are occasionally completely covered with many 

 thousands of these little insects. 

 Psychomyia. Spurs 2, 4, 4. 



Psychomyia pusilla. A very small yellow-brown 

 coloured sedge, appearing on most rivers during the 

 summer, but taking shelter under the leaves of trees 

 and bushes during the day. A slight tap on a branch 

 by the river-side will usually disturb a considerable 

 number of these small flies. 

 Chimarrha. Spurs i, 4, 4. 



Chimarrha marginata. — A plentiful small dark 

 sedge with dark-brown wings edged with a golden- 

 yellow outer margin. The larva; have a prefer- 

 ence for portions of the river where the flow is 

 fast and mossy boulders abound. 



RHYACOPHILID^ 



Rhyacophila. Spurs 3, 4, 4. 



Rhyacophila dorsalis. — Described on page 264, the 

 larva, case, cocoon and pupa shown in Plate 

 XXVI, and the male imago in Plate XXX. 

 Glossosoma. Spurs 2, 4, 4. 



Glossosoma vernale. — A small brown sedge with a 

 curious cup-shaped indentation on the inner 

 margin of the anterior wings of the male. 



