42 Tavvcv cCr. 0/ Mycetobia, Dito:nylr\, and Sjmmerus. 



Fi\//. 8. Lalirmn of Mijcomi/ia marr/inata, Meig. 



Fi^. 9. Pleural sensory orj>aii reproseiitiug the remains of thoracic legs 



■ of Mycomi/ia marf/innta, Meig. 

 Fif/. 10. Maxilla of Mi/comi/ia maiv/iiuita. vi.x. ; m.])., maxillary palps. 

 Fii/. 11. Maxilla of Bulitophila fusca, Meig. 

 F!(f. 12. ^la\\\\A oi Mycetophila hJandii, Winn. 

 Fi;/. I-}. Antenna of Bolitophila fu&ca, 2»Ieig. 



Platk IV, 



[All tlie figures of this Plate con^ei'n the larva and pupa of 

 Ditomyiu fdsciata.] 



Fif/. 11. Larva of Ditomyia fusciata, viewed literally. 



Fiij. 15. Labruni, ventral side. (^., dental chitiuous plate; p.L, ventral 

 plate. 



Fitj. 10. Alimentary canal of the larva, a.c, anterior coeca ; m.g., mid- 

 gut; .1/., Malpighian tubes ; o.e., oesophagus ; ^j.r., proventri- 

 oulus ; s.a., salivary glands. 



Fij, 17. Maxillaj and labium of larva, l.h., labium; /.;;., labial palps ; 

 /.s"., lateral sensory organ of the maxillary palp ; vi.p., maxil- 

 lary palp ; m.x., maxilUe ; t.b., transversal chitinous band of 

 the cardo of maxiila ; s.h., sensory hair of the internal lobe 

 of maxill;«. 



Fi;/. 18. Abdominal spiracle of larva. 



Fiy. 19. Sensory organ — remains of thoracic leg. 



Fii;. 20. Last pair of abdominal spiracles, f.c, felt-chamber (" chambre 

 feutr^e ") ; T.r., tracheal trunks ; s.c, external scar ; s.p., 

 spiracles. 



Fig. 21. Prothoracic spiracle — the black surface represents the external 

 scar of this spiracle. 



Fifj. 22. Mandibula. 



Fiy. 23. Antenna, h.s., bell-shaped sensory oi'gan ; ;>., l)iarticulated 

 papilla. 



Fir/. 24. Pupa, viewed laterally. ^^.7*., prothoracic respiratory horns. 



Fiy. 2o. Posterior end of this pupa, showing the hooks. 



Pl.\te Y. 



[Figs. 26-34 concern larva and pupa of SymmeruR annulata.~\ 



Fi'i. 2(5. Larva of Symmerus annnJatcu, viewed laterally. 



Fig. 27. Labrum of the larva. Letters as in fig. 1.5. 



7'!!//. 28, Pupa of Symmerus anmdata. 



Fiy. 29. [Maxilla and labium of this larva. Letters as in fig, 17. 



Fifj. 30. Sensory organ — remains of thoracic leg. 



Fiy. .31. Mandible. 



Fiy. 32. Antennae. Letters as in fig. 23. 



Fiy. 33. Abdominal spiracle. 



Fiy. 34. Last abdominal spiracle. 



Fiy. 35. Mandible of the larva oi RJnjphu^ fenestralis. 



Fly. .36. Mandible of the \tir\aoi Mycefobin jmllipes. 



Fiy. .37. Antenna of Mycefobia pallipes. 



Fiy. 38. Larva of Mycetobi^i pallipes, viewed dorsally. 



