EXPLANATION OP PLATE VI. 



All the drawings were made by J. Henry Blake. 



Fig. 1. (147P) (?) Dysagrion packardii ; body 

 only. 



2. (4183) (f) Dysagrion fredericii ; head and 



base of wing. 



3. (146P)({) Dysagrion packardii; fore wing- 



(Copied by Zittel, Handb. d. palteont." 

 Fig. 979.) 



4. (4175) (f) Libellula sp. ; reverse of Fig. 



16; part of abdomen. 



5. (4178) (f) Dysagrion fredericii; part of 



abdomen. 



G. (4170) (f) Dysagriou fredericii; terminal 

 joints of abdomen. 



7. (4169) (}) Podagrion abortivuui; tip of 



fore wing next pterostigma. 



8. (4169) (f) Podagriou abortivum ; fore 



wing. 



9. (4167-4168) (t) Dysagrion fredericii ; fore 



wing. 



10. (4179) (f) Dysagriou fredericii; head. 



11. (147P) (f) Dysagrion packardii; abdomi- 



nal appendages. 



12. (258P) Cf) Ixodes tertiarius. 



13. (41riS) (}) Pronemobius tertiarius; fore 



wing. 



14. (4165-4166) (?) Dysagrion fredericii f; fore 



wing. 



15. (154R) (f) lulus telluster. 

 678 



Fig. 16. (4176) (?) Libellula sp. ; reverse of Fig. 4 ; 

 part of abdomen. 



17. (4173) (?) Dysagrion fredericii ; abdomen ; 



accidentally placed on the plate upside 

 down. 



18. (112P) (?) Pronemobins induratus; part 



of wing. 



19. (38R) (|) Cixius hesperidum. 



20. (144L) (f ) Ficarasites stigraaticum. 



21. (|) Proneuiobius tertiarins. 



22. (f) Proneinobius smithii. 



23. (18R) (f ) Proneuiobius tertiarins ; hiudleg. 



24. (4076) (f) Lystra richardsoni. 



25. (137P) (f) Paralatindia saussurei. 



26. (114P) (f ) Cicadula saxosa. 



27. (175R) (|) Aphana rotundipenuis. 



28. (90L) (Jf) Lithopsis elongata; fore wing. 



29. (100R) (?) Acocephalus ada3. 



30. (4217) (f ) Lystra richardsoni. 



31. (4207-4208) (?) Lystra richardsoui. 



32. (115P) (?) Cercopites callisceus. 



33. (116P) (|) Thamnotettix gannetti. 



34. (117P)Ct') Hamuiapteryxreticulata; parts 



of two fore wings. 



35. (49R) (?) Fulgora granulosa. 



36. (118P) (f) Lithopsis fimbriata; fore wing. 



37. (4185) (f) Lithopsis fimbriata. (Copied by 



Zittel, I.e., *ig. 989.) 



