Explanation of Plate I. 



Illustrating Mr. Kenneth J. Morton's ])aper on" New Sj>eck:R of 

 Oriental Bhii(icoj>/iil;v." 



Bhyacophila lanceoln/a. 

 Fig. L Apex of abdomen from .side, (^ . 



2. Lateral lobes from above. 



3. Apex of lateral lobes from behind (more enlar^edV 



4. Apex of abdomen from side, 9 • 



Rhyacophila japonica. 



5. Apex of abdomen from above, ^ . 



6. „ ,, from side. 



7. Inferior appendages from beneatli. 



Rhyacophila tecta. 



8. Apex of abdomen from above, ^ . 



9. ,, „ from side, 



Rhyacophila articuJata. 



10. Apex of abdomen of ^ from side. 



11. " Lateral lobes " from above. 



Rhyacophila curvata . 



12. Apex of abdomen from side, ^. 



13. " Lateral lobes" from above. 



14. Apex of abdomen of $ from sido. 



Rhyacophila scissa. 



1 5. Apex of abdomen from side, ^ . 



16. „ „ from above. 



Rhyacophila anatina. 



17. Apex of abdomen of ^ from side. 



18. Median process and lobes from above. 



Rhyacophila naviculata. 

 ] 9. Apex of abdomen of ^ from side. 



20. Median process from above. 



Rhyacophila inconspicua. 



21. Apex of abdomen of <^ from side. 



22. Dorsal process, etc., from above. 



