226 ENTOMOLOGICAL NEWS ' [May, '14 



Ischnura denticollis. Sept. 9, Mesa: 1 $. 



Ischnura demorsa. Sept. 9, 10, 11, 16 and 18, Mesa, Salt River 

 and east of Mesa: 21 $ and 36 $ . 



Ischnura barberi. Sept, 8, 9 and 11, Mesa and south of Mesa; 

 Sept. 12, Tempe: 4 $ and 1 2. All Ischnuras were taken in 

 grass and on twigs in water; flight low. 



Progomphus borealis. All were taken away from water 10-40 

 feet; were resting on tips of twigs, often with abdomen elevated, 

 and none were seen resting on the ground. Sept. 8 and 18, Salt 

 River, Mesa, and desert north of Mesa; Sept. 15 and 22, Granite 

 Reef Dam: 4 $ and 6 5. 



Erpetogomphus compositus. All were resting on dirt banks or 

 broad leaves, always near water; flight swift and straight. Sept. 

 12, south of Tempe, along canal; Sept. 18, Salt River, Mesa; Sept. 

 22, Granite Reef Dam: 6 $ and 2 2. 



Anax junius. Flying along ditches in bright sunlight, most num- 

 erous during the middle of the day; associated with the next spe- 

 cies. Sept. 9, 10, 11 and 13, Mesa and south and southeast of Mesa 

 along canal: 10 $ and 2 2. 



Aeshna multicolor. Associated with the preceding and of simi- 

 lar habits. Aug. 31 and Sept. 9, Mesa and southeast of Mesa 

 along a ditch: 11 $ and 2 2- 



Libellula saturata. Often resting on twigs among dead cacti. 

 Sept. 8, 11 and 18, Mesa and south of Mesa; Sept. 22, Granite Reef 

 Dam : 3 $ and 3 2 . 



Libellula comanche. Flying with Aeshnines, only one seen. 

 "Basal coloring of wings much reduced (wanting), c. f. Ent. News 

 XVIII, p. 202; distal brown of stigma reduced (scarcely one-fifth) 

 Calvert in letter. Sept 9, southeast of Mesa along ditch, 1 3 . 



Orthemis ferruginea. Usually resting on dead twigs. Sept. 3, 

 8, 9 and 10, Mesa, along road north of Mesa, southeast of Mesa 

 along ditch; Sept. 17, Chandler: 13 $ and 4 2. 



Perithemis intensa. On twigs in still water and back and forth 

 between resting places. Sept. 3, 8, 9, 10, 11 and 16, Mesa, north, 

 east and south of Mesa; Sept. 17, Chandler: 41 $. 



Erythemis collocata. About small ponds. Sept. 8, 10, 11, 16 and 

 18, Mesa, and north, east and south of Mesa; Sept. 17, Chandler: 

 12 $ and 5 2. 



Sympetrum corruptum. Sept. 8 and 11, north and south of 

 Mesa; Sept. 15, Granite Reef Dam: 3 $ and 1 2. 



Pantala flavescens. Sept. 11, south of Mesa, 1 $. 



