243 



EXPLANATION OF PLATES 



Plate XIII 



Pupa of Palponuim longipennis, apical three segments, lateral view. 



Thoracic respiratory organ of same. 



Fourth abdominal segment of same, dorsal view. 



Apical segment of same, dorsal view. 



Palpomyia schwarzi, last tarsal joint of female. 



Palpomi/ia longipennis, wing of female. 



Chironomus compcs, femur, tibia, and first two tarsal joints of hind leg. 



Chrysotus spinifer, palpus of male. 



Antenna of male of same. 



Basal joint of hind tarsus of same. 



Chrysotus anomalus, antenna of male. 



Chrysotus ciliatus, antenna of male, 



Chrysotus choricus, antenna of male. 



Chrysotus ciliatus, head of male from in front. 



Chrysotus flavisctus, antenna of male. 



Antenna of female of same. 



Plate XIV 



Fig. 17. Chironomus ferrugineovittatus, labium of larva. 



Fig. is. Antenna of larva of same. 



Fig. 19. Maxilla of same. 



Fig. 20. Anal segments of same. 



Fig. 21. Forhesomyia otra, antenna of female. 



Fig. 22. Wing of female of same. 



Fig. 23. Zygonenra fenestrata, apex of abdomen of female. 



Fig. 24. Antenna of female of same. 



Fig. 25. Chironomus ferrugineovittatus, mandible of larva. 



Fig. 26. Zygoneura fenestrata, wing of male. 



Fig. 27. Hypopygium of male of same, lateral view. 



Fig. 28. Forhesomyia atra, abdomen of female, dorsal view. 



Fig. 29. Zygomyia interrupta, wing of male. 



Plate XV 



Fig. 30. Johannseniella flavidula, thorax of pupa, dorsal view, showing the split 

 made by the emergence of the imago. 



Fig. 31. Dorsal view of third segment of abdomen of pupa of same. 



Fig. 32. Lateral view of last three abdominal segments of same. 



Fig. 33. Dorsal view of apical segment of abdomen of same. 



Fig. 34. Johannseniella alharia, thorax of pui)a, showing the condition before emer- 

 gence of adult. 



Fig. 35. Dorsal view of third abdominal segment of pupa of Fame. 



Fig. 36. Lateral view of last three segments of abdomen of same. 



Fig. 37. Dorsal view of apical segment of abdomen of same. 



