HAGKN.] ZOOLOGY ^PSEUDO-NEUEOPTERA AND NEUEOPTERA. 603 



DiCTYOPTERTX. 



6. D. signata, foot-hills of Colorado, and mountains on the Pacific 



slope. 



ISOGENUS. 



7. I. elongatus, foot-hills, Colorado ; Ogdeu, Utah. 



8. J. eolubriims, Snake Eiver, Idaho. 



Perla, 



9. P. sohria, Colorado Mountains, Pacific slope. 



10. P. ehria, Colorado Mountains, Pacific slope. 



11. P. (^) (species not described), from the same locality. 



Chloroperla. 



12. Chi. (^) (species not recorded), foot-hills, Colorado. 



Family Ephemirina. 

 Ephemera. 



13. JE. compar, foot-hills, Colorado. 



— . U. decora, west of the Mississippi down to Virginia. 



— . E. guttulata, New York. 



— . U. natata, Canada ; Illinois ; Maine. 



Heptagenia. 



14. a. brunnea, Truckee, Nevada. 



15. H. pudica, foot-hills, Colorado j "Washington, D. 0. 



Leptophlebia. 



16. L. pallipeSj Truckee, Nevada. 



Family Odonata. 

 Subfamily Libellulina. 



LlBBLLTJLA. 



17. L. 4 4:maculata, Snake Eiver, Idaho j Ogden, Utah; Bridger 



basin, Wyoming. 



18. L. nodisticta, Yellowstone 5 Mexico. 



19. X. /orewm, Yellowstone ; California; British Columbia. 



20. L. pulchella, Ogden, Utah; common everywhere west of the Mis- 



sissippi. 



21. L. saturata, Yellowstone ; Mexico ; Arizona. * 

 — . L. croceipennis.,Ca\U'orn\a', Mexico. 



22. L. flavida, Yellowstone ; Texas. 



23. L. composita, Yellowstone. 



Mesothemis. 



24. Jf. coi^ocate, Yellowstone; California. 



25. M. simpUcicollis, Ogden, Utah; everywhere east of the Eocky 



Mountains. 



26. M. corrupta, foot-hills, Colorado; California; Texas; Illinois. 



27. M. illota, Yellowstone; California. 



DiPLAX. 



28. B. atripes, Yellowstone. 



29. D. decisa, foot-bills of the Colorado mountains, Pacific slope. 



30. D. pallipes, foot-hills of Colorado. 



31. J). Hemicincta, foot-hills of Colorado ; east of the Mississippi, not 



rare. 



