NO.2107. DRAaONFLIEH, WASHINQTOy AXD OREQOX— KENNEDY. 281 



the arms of the U so broad that the internal opening is reduced to a 

 line, while the external anterior angles of the arms of the U are 

 rounded. 



Figs. 50-51.— Argia emma, male abdominal segments 1 and 2. 50. Lateral view. 51. Ventral view. 



Figs. 52-53.—ARGIAVIVIDA, MALE ABDOMINAL SEGMANTSl AND 2. 52. LATERAL VIEW. 63. VENTRAL VIEW. 



Fig. 54.— Argia emma, ovipositing. 



Segment 5 less blue than segment 4, but with the same color pattern. 



Segment 6 olivaceous. Color pattern same as in segments 4 and 5, 

 but with each dorso-lateral stripe confluent posteriorly with its arm of 

 the dorso-posterior U-spot. 



