630 PROCEEDINO^ OF THE XATIOyAL MUSEUM. vol.52. 



1. LESTES CONGENER Hagen. 



One fciuale, Pleasant Valley. 



2. ARGIA AC;r10IDES Calvert. 



One male, Pleasant Valley. 



3. HYPONEURA LUGENS Hagen. 



Three males and three females from Pleasant Valley. 



4. ARGIA VIVTDA Hagen. 



Six females, Pleasant Valley; one female, Bean Creek, at Coulter- 

 ville. 



5. ENALLAGMA CYATHIGERUM (Charpentier). 



Pleasant Valley and Bean Creek, Coulterville. 



6. AMPHIAGKION SAUCIUM ABBREVIATUM Selye. 



Two males and a female from Bean Creek, Coulterville. This is 

 the lowest altitude in California at which this species has been taken. 



7. ISCHNURA CERVULA Selys. 



A male and female from Modesto. 



8. ISCHNURA PERPARVA Selys. 



Three males and four females from Coulterville. 



9. PROGOMPHUS BOREALIS Mc Lachlan. 



One male, Pleasant, Valley. 



10. GOMPHUS OLIVACEUS Selys. 



A male from Bean Ci-eek, Coulterville. This is the farthest south 

 record of this species in the San Joaquin Valley. 



11. OCTOGOMPHUS SPECULARIS (Hagen). 



Pleasant Valley and Coulterville. 



12. AESHNA MULTICOLOR Hagen. 



Pleasant Valley. 



13. LIBELLULA FORENSIS Hagen. 



One female, Coulterville. 



14. LIBELLULA NODISTICTA Hagen. 



A male and female, Coulterville. 



15. LIBELLULA PULCHELLA Drury. 



One female, Pleasant Valley. 



16. LIBELLULA SATURATA Uhler. 



A male and female. Pleasant Valley. 



17. PLATHEMIS LYDU (Drury). 



Modesto and Coulterville. 



18. SYMPETRUM CORRUPTUM (Hagen). 



Two males and three females, Coulterville. 



19. SYMPETRUM ILLOTUM (Hagen). 



Modesto and Pleasant Valley. 



20. SYMPETRUM PALLIPES (Hagen). 



Pleasant Valley, one male. 



21. PACHYDIPLAX LONGIPENNIS (Burmeister). 



A male and female from Modesto. 



