146 the canadian entomologist 



Explanation of Plates. 

 Plate X. 



Leptophlehia bet ten i. 



Figure 1. Labrum of nymph. 



" 2. Hypopharynx of nymph. 



" 3. Left mandible of nymph. 



" 4. Right mandible of nymph. 



'■' 5. Labium of nymph. 



" 6. Maxilla of nymph. 



" 7. Abdominal gill of nymph. 



" 8. Fully grown nymph. 



9. Egg. 



10. Adult female. 



Leptophlehia prcepedita (.^). 



''' 11. Lateral view of end of abdomen of female. 



Leptophlehia hetteni. 

 " 12. Lateral view of end of abdomen of female, showing an egg partly 

 extruded between the prolongations of segments 7 and 8. 



Plate XL 



Hagenuhis sp. 



Figure 1. Hypopharynx of nymph. 



" 2. Right mandible of nymph. 



" 3. Left mandible of nymph. 



" 4. Maxilla of nymph. 



" 5. Labium of nymph. 



" 6. Head and labium of nymph. 



''' 7. Inequilateral abdominal gill of nymph. 



Hagenuhis caligiatus. 

 '•' 8. Lateral view of end of abdomen of adult female, showing ovipositor 

 bearing extruded egg-mass at its tip. 



Leptophlehia snhmarginata (European). 

 " 9. Ventral view of segments 7, 8 and 9 of female, 7 and 8 being slightly 

 separated to show prolongations that form the egg-guide. 

 Leptophlehia mollis. 

 ''' 10. Ventral view of segments 7 and 8 of adult female. 

 " 11. Lateral view of male abdominal appendages. 

 " 12. Dorsal view of male abdominal appendages. 



Leptophlehia prcepedita (?). 

 " 13. Dorsal view of male abdominal appendages. 

 " 14. Lateral view of male abdominal appendages. 



DELPHACID^ OF THE BRITISH MUSEUM— ERRATUM. 



On p. 7, line 10, for "3, Pundaluoya simplex Dist." read "3, Pundaluoya 



simplicia Dist." 



' F. MuiR. 



