EXPLAXATIOX OF THE PLATES. 



Remark. The wings figured on Plates I and II are all magnified about 

 4| times, except the wings fig. 2 and 11 of Plate II, which are magnified 

 94 times. 



PLATE I. 



1. Dicranoonyia longipexxis Sclnan. 



2. Dicrasioniyia rcBirExxis 0. S. 



3. Dicraiioanyia h;eketica 0. S. 



4. Trocliotoola akgcs Say. 



5. Elepliantomyia westwoodi 0. S. 



6. Toxorrliina magna 0. S. 



•y, Cyliiidrotoma kodicoknis 0. S. 



8. Dicranoptycha sobrina 0. S. 



9. Oriniarga alpina Zetterst. 



10. Elliptera omissa Sclnner. 



11. Antocha opalizans 0. S. 



12. Teiicholabis complexa 0. S. 



13. Atarba picticokxis 0. S. 



14. Rhypholoplius nubilus 0. S. 



15. RliypllOlOplBUS EDBELLCS 0. S. 



16. Erioptera chlorophylla 0. S. 



17. Erioptera vencsta 0. S. 

 IS. Erioptera armata 0. S. 



19. Erioptera sp. nov. (The wing was taken from a Californian speci- 



men, closely allied to E. hirtipennis 0. S.) 



20. Symplecta pcxctipexnis M. 



PLATE IL 



1. Trimicra pilipes Fab. 



2. Goniomyia sclphcrella 0. S. 



22 December, 1868. / 33'T \ 



