NO. 1692. DRAGONFLIES OF THE MISSISSIPPI VALLEY— WILSON. QQl 



4. ERYTHEMIS SIMPLICICOLLIS (Say). 



Common everywhere. 



5. PLATHEMIS LYDIA (Drury). 



Fairly common, many of the females just emerged from their pupa cases. 



6. LEUCORHINIA INTACTA (Hagen). 



Common everywhere; the most numerous species seen. 



7. TETRAGONEURIA SPINIGERA (Selys). 



A single female taken and one or two others seen. 



8. DOROCORDULIA LIBERA (Selys). 



Several seen flying about over the small stream which serves as the outlet 

 to the lake ; distinguished readily by its inflated abdomen ; hard to 

 catch, but both sexes secured. 



9. LIBELLULA QUADRIMACULATA Linnaeus. 



Found in company with DorocorduUa lihera and quite common ; but it is 

 very wary here, and it was extremely difficult to secure even a single 

 specimen. 



VIII. RED WING, MINNESOTA, JULY 17. 



1. LIBELLULA PULCHELLA Drury. 



Several seen flying across the river. 



2. ANAX JUNIUS (Drury). 



Many seen patrolling the river banks. 



3. PLATHEMIS LYDIA (Drury). 



Both sexes seen along the river bank just above town. 



4. GOMPHUS EXTERNUS Selys. 



A single pair captured on the river bank. 



5. GOMPHUS VASTUS Walsh. 



Common everywhere; most of the specimens secured were males. 



6. GOMPHUS CRASSUS Hagen. 



A single female secured in company with G. vastus. 



7. GOMPHUS FRATERNUS (Say). 



Both sexes fairly common. 



8. GOMPHUS AMNICOLA Walsh. 



A single female secured in company with O. fraternus. 



9. LESTES INEQUALIS Walsh. 



Both sexes common in shady places near the woods. 



10. ARGIA TIBIALIS (Rambur). 



Both sexes common along the river bank. 



11. ARGIA APICALIS (Say). 



Found in company with A. tihialis, but not as plentiful. 



12. ARGIA MCESTA PUTRIDA (Hagen). 



A few individuals found along the river bank. 



13. ENALLAGMA HAGENI (Walsh). 



Found in the grass along the river bank. 



14. ENALLAGMA EBRIUM (Hagen). 



Found in company with E. hageni. 



IX. WINONA, MINNESOTA, JULY 19. 

 I. LIBELLULA PULCHELLA Drury. 



Several seen flying across the river. 

 Proc.N.M.vol.xxxvi— 09 46 



