564 MODERN CLASSIFICATION OF INSECTS. 
authors in consequence of the adoption of various characters as of 
primary importance. 
The corrected arrangement of these insects, as given by Fallen 
(Diptera Suecie, vol. ii. p. 1. 1818—1825), is as follows :— 
Area alarumangularis. Nulla seta antennarum dorsalis in( Hydrocho subterminalis). 
A. Proboscide vix ulla. 
Fam. 12. Hematomyzides. (Corpus polymorphum.) Gen, Stomoxys, GEstrus, and 
Hippobosca. 
B. Proboscide distincta. 
* Squama sub alis magna. 
Fam. 13. Rhizomyzides. Oculi oblongi. Os mystaceum, Nervus alarum costalis, 
cum nervo tertio longitudinali connexus. Gen. Phasia ( Thereva 
Fall.) Ocyptera. 
Fam. 14. Muscides. Oculi oblongi. Os mystaceum. Nervus alar. costalis 
cum nervo quarto longit. connexus. Gen. Tachina (74 sp. ), Musca, 
(183 sp.), Lispe. 
4* Squama sub alis parva. 
a. Palpi simplices. 
Fam. 15. Scatomyzides. Oculirotundi. Osmystaceum. Antenne truncate. Gen. 
Scatomyza (Seatophaga), Cordylura. 
Fam. 16. Sciomyzides. Os nudum. Nervus alar. auxiliaris a secundario re- 
motus. Gen. Sepedon, Tetanocera, Sciomyza, Dryomyza. 
Fam. 17. Ortalides. Osnudum. Nervi alar. auxiliaris et 2us. approximati. 
Gen. Tetanops, Tephritis, Ortalis, Sepsis, Palloptera, Lonchza, Laux- 
ania, Sapromyza. 
Fam. 18.  Opomyzides. Os nudum. Nervi auxil. et secundar. coadunati. Ca- 
lobata, Tanypeza, Chyliza, Loxocera, Scatophaga, Tetanura, Opo- 
my za. 
Fam. 19. Heteromyzides. Osmystaceum. Antenne rotundate, subsessiles. Hete- 
romyza, Helomyza, Copromyza, Piophila. 
Fam, 20. Geomyzides. Os mystaceum. Seta antennarun pectinata, Nervus alar. 
auxil. brevis, simplex. Gen. Geomyza, Drosophila. 
Fam. 2]. Oscinides. Os nudum, Antenne rotundate. Nervi alar. transversi ap- 
proximati. Gen. Platycephala, Oscinis, Madiza, Gymnopa. 
Fam. 22. Agromyzides. Os submystaceum. Antenne 1. rotunda, |. angulate. 
Nervus transy. ordin. ]. in medio, l. paullo pone medium ale situs. 
Gen. Heteroneura, Agromyza, Anthomyza, Chlorops. 
Fam. 23. Phytomyzides. Os sepius nudum. Antenne rotunde, Nervi trans- 
versi ad basin ale retracti. Gen. Dipsa, Phytomyza, Trineura. 
Fam. 24. Ochtidie. Antenne angulate porrecte. Nervus alar. auxiliaris brevis. 
Phyllomyza, Ochtiphila. 
B.  Palpi dilatati. 
Fam. 25. Hydromyzides. Oculi rotundi. Antenne deflexe. Corpus ovatum, 
Gen. Hydromyza, Ochthera, Ephydra, Psilopa, Notophila. 
(Fam. 26.  Dolichopodes). 
