EXPLANATION OF PLATES 



The photographs of the wings on Plates 1 and 2 were made by 

 A. D. Eldredge, formerly in charge of photography at the University 

 of Illinois, and the drawings by Mrs. W. V. Balduf. The photo- 

 graphed wings are all to the same scale, and the drawings of Plates 

 3 and 4 vary slightly in the rate of magnification. 



Plate 1 



Figure 1. Decatoma vacciniicola, new species. Right front wing. 



2. Decatoma flava Ashmead. Right front wing. 



3. Decatoma lanae Ashmead. Right front wing. 



4. Decatoma amsterdamensis Girault. Left front wing. 



5. Decatoma texana, new species. Right front wing. 



6. Decatoma disholcaspidis, new species. Left front wing. 



7. Decatoma nuMUstigma Walsh. Left front wing, 



8. Decatoma hicolor Ashmead. Left front wing. 



9. Decatoma isis Girault. Right front wing. 



10. Decatoma varians Walsh. Right front wing. California. 



11. Decatoma varians Walsh. Left front wing. Illinois. 



12. Decatoma duMa Walsh. Right front wing. 



13. Decatoma duhia rufosa, new variety. Right front wing. 



Plate 2 



Figure 14. Decatoma duMa doanei Fullaway. Left front wing. 



15. Decatoma lobatae, new species. Right front wing, 



16. Decatoma globuli, new species. Right front wing. 



17. Decatoma novascotiae, new species. Left front wing. 



18. Decatoma flamminneiventris Girault. Right front wing. 



19. Decatoma occidentalis, new species. Left front wing. Arizona. 



20. Decatoma occidentalis, new species. Right front wing. California. 



21. Decatoma bremloiae, new species. Left front wing. 



22. Decatoma nigriceps Walsh. Right front wing. 



23. Decatoma foHatae arizonica, new variety. Left front wing, 



24. Decatoma pomiformis, new species. Left front wing. 



25. Decatoma marylandica Girault. Left front wing. 

 ^. Decatoma queivi-lanae (Fitch). Right front wing. 



93 



