PLATE XIV. 



MESOVELIA MULSANTI. 



Fig. 1. Mesovelia mulsanti, winged male with membrane of wings 

 broken off. 



Fig. 2. Mesovelia mulsanti, winged female, wings entire. 



Fig. 3. Fifth instar nymph ; note the dorsal pore on fourth abdominal 

 segment. 



Fig 4. First instar nymph. 



Fig 5. Eggs in stem of sedge, surface view of the two at left. The 

 other two seen in situ in stem when portion of stem is removed. 



Fig 6. Fourth instar, apterous form. 



Fig. 7. Two eggs, showing their connection with surface of stem; eye 

 spot shows in the one to the right. 



Fig. 8. The embryonic membrane, cast by the hatching nymph; 2 

 "pegs" shown at the left enlarged. 



Fig. 9. Apterous male. 



Fig. 10. Apterous female. 



Fig. 11. Male genitalia from above. 



Fig. 12. Male genitalia from side, hooks in black. 



Fig. 13. Ventral view of female ovipositor in its sheath. 



Fig. 14. Ovipositor lateral shafts shaded. They slide up and down 

 on the central shaft. 



Fig 15. Cephalic view of ovipositor, turned into position for action. 

 Plate first appeared in Psyche XXIV. 



(294) 



