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IOWA ACADEMY OF SCIENCE Vol. XXIV, 1917 
groups. Found in company with A. junius, P. flavescens, P. 
hymenaea, T . lacuata and others. 
TETRAGONEURIA Hagen. 
T. cy nosura Say. Waterloo, 1906 (Miller). 
SOMATOCHLORA Selys. 
8. tenebrosa Say. Ames, July 21, 1916. Taken in pastured 
woodland early in morning before a flight had been taken. 
PANTALA Hagen. 
P. flavescens Fabricius. Muscatine, August 17, 1916 ; Fair- 
port, August 14, 1916. Found in abundance along Mississippi 
river. 
P. hymenaea Say. Fairport, August 14, 1916 ; Muscatine, 
August 10, 1916; Fairport (Wilson). Taken in grass near 
ponds or sloughs. 
TRAMEA Hagen. _ 
T. Carolina Linne. Ames (Collection). 
T. lacerata Hagen. Muscatine, August 10, 1916 ; Fairport, 
August 3, 1916; Ames (Collection); Fairport (Wilson); Clin- 
ton, May, 1896 (Elrod). Found in abundance on sloughs near 
Mississippi river. 
PERITHEMIS Hagen. 
P. flomitia Drury. Muscatine, July 28, 1916 ; Fairport, 
August 3, 1916; Fairport (Wilson). 
CELETHEMIS Hagen. 
C. eponina Drury. Fairport, August 3, 1916; Clinton (El- 
rod) ; Fairport (Wilson). 
LEUCORHINIA Brittinger. 
L. intacta Hagen. Ames, June 28, 1916; Fairport, June 30, 
1916 (Wilson) ; Waterloo, 1906 .(Miller) . Scattering near small 
ponds. 
SYMPETRUM Neuman. 
8. rubicundulum Say. Ames, July 6, 1916; Boone, July 20, 
1916 ; Muscatine, August 7, 1916 ; Fairport, August 17, 1916 ; 
Des Moines, August, 1892 (Elrod) ; Tama county, July 12 (Miss 
Sharp) ; Fairport (Wilson). Found almost everywhere; a very 
abundant species. Common in woodlands, near streams. 
