EXPLANATION OF PLATE 



< Figures 2, 3. 7, 8, 12, 22, 31, by C. Howard Curran ; 19, 20, by R. E. 

 grass. The remainder by the autlior) 



Snod- 



generally only the posterior and 

 Variously magnified) 



Plate 1 



(Figs. 1-14 are male genitalia, side view, 



anterior forceps being drawn. 



Fig. 1. Cylindi'omyia brassicaria Fabricius. 



2. " intermedia Meigen. 



3. " argentea Townseud. 



4. " uniformis, new species. 



5. *' bakeri, new species. 



6. '* linibata, new species (imperfectly drawn out). 



7. " dosiades Walker. 



8. " euchenor Walker. 



9. " armata, new species. 



10. nigra, new species. 



11. " atra Roeder. 



12. " decora, new species. * 



13. " alticola, new species. 



14. " naria Townsend. 



1"). Scutellum with three pairs of bristles. 



16. Scutellum with two pairs of bri.stles. 



17. Scutellum with one pair of bristles. 



(Female genitalia from the side (19 and 20 diagonally from below),) 



Fig. is. Cylindromyia signata Townsend. 



off, the usual 



27 



o 



