12 DIPTERA OF NORTH AMERICA. [PART IV. 



Mr. Rondani, in his Prodromus Dipterologise Italicse, Yol. I 

 (1856), proposed the following distribution : — 1 



. Fam. XXV. Tipulida. • 



I. Stirps Limnobiina. 



A. Eleven or twelve longitudinal veins reach the margin. 

 1. Erioptera (type: E. obscura M. ; therefore syn. Molophilus) .—2. 

 Chemalida, n. g. (type: Erioptera tcenionota M.). — 3. Ilisomyia, 

 n - §• (type: L nubipennis, n. sp.). — 4. Ilisophila, n. g. (type: 

 Erioptera lutea M.). — 5. Ormosia, n. g. (type: Erioptera nodulosa 

 Macq., which, in my distribution, would be a Rhypholophus) . — 

 6. Spyloptera, n. g. (type : #. meridionalis, n. sp. ; also a Rhypho- 

 lophus, according to Dr. Schiner). — 7. Limncea, n. g. (type: Eri- 

 optera Jlavescens Lin.) — 8. Symplecta. — 9. Rhamphidia. — 10. Cylin- 

 drotoma. — 11. Taphrosa, n. g. (syn. Goniomyid) . — 12. Orosmya^ 

 n « S' (type : 0. apenna, n. sp.). — 13. Ilisia, n. g. (type : Erioptera 

 maculata M.). — 14. Elceophila, n. g. (type: Ephelia marmorata 

 Hgg.). — 15. Limnophila. — 16. Bophrosia, n. g. (syn. Tricyphona). 

 — 17. Trichocera. — 18. Idioptera. — 19. Ula. 



AA. Only ten longitudinal veins reach the posterior margin. 

 20. Dolichopeza. — 21. Anisomer a. — 22. Nematocera. — 23. Dixa. — 24. 

 Pelosia, n. g. (type: P. albifrons, n. sp.). — 25. Glochina (type: 

 G. sericea M.). — 26. Taphrophila, n. g. (type: Dicranomyia 

 inusta M.). — 27. Limnomyza, n. g. (type : Limnobia tripunctata 

 M.). — 28. Limnobia (type: L. chorea M.). — 29. Rhipidia. 



II. Stirps Tipxdina. 



1. Ceroctena (syr Dictenidia Brulle). — 2. Xiphura. — 3. Ctenophora. — 

 4. Ctenocer^a, n. g. (type: Ptychoptera pectinata Macq.). — 5. 

 Ptychoptera. — 6. Pedicia. — 7. Nephrotoma. — 8. Alophroida, n. g. 

 (type: A. cinerea, n. sp.). — 9. Pachyrrhina. — 10. Tipula. — 11. 

 Pterelachisus. 



Fam. XXVI. Chioneidse. 



Fam. XXVII. Orphnephilidae. 



Fam. XXVIII. Berteidse. 



Fam. XXIX. Asthenid®. 



Fam. XXX. Rhyphidaj. 



It is unnecessary to enter into a detailed criticism of this 



1 I have seen Mr. Eondani's first volume only, containing the general 

 synopsis of all the families of Diptera, and it is from this volume that the 

 extract which I give is reproduced ; I do not know whether the volume 

 containing the Tipulidai has appeared at this date or not. 



