BY FREDERICK A. A. SKUSE. 



146 



EXPLANATION OF PLATES. 



Plate n. 



Fig. 1. Venation of 



wings in the genus Jleteropeza. 



2. 





,, ,, MktHtor. 



3-16 , 





„ ,, Cecidomyia. 



3. 





„ 8ub-genus Goniockma. 



4.\ 

 5./ ' 





„ ,, Cecidomyia. 



6. 





,, ,, Diplosis (A). 



7. 





M (B). 



8. 





,, ,, Asphondylia. 



9. 





„ ,, Hormomyia. 



10. 





,, ,, N ecrophlebia. 



11. 





,, ,, Chastomera. 



12. 





,, „ Colpodia. 



13. 





,, ,, Epidosis. 



14. 





,, Epidosis gibberosa. 

 Plate hi. 



15. Vena 



ktion of 



wings in the sub-genus Asynapta (a). 



16. 





(b). 



17. 





,, genus Spaniocera. 



18. 





,, ,, Lasioptera. 



19. 





J, „ C'ampytomyza (a) 



20. 





., „ (b) 



21. 





,, ,, Trito~.yga. 



22. 





,, ,, C'alocliti. 



23. 



24. S ' 





,, ,, Lislremia. 



25. Diagi 



ram of 



an ideal typical wing illustrating the vein 



system in the DipUra, 



10 



