INDEX 



The superior figures tell the exact place on the page in ninths ; e. g. 136^ 

 means page 136, beginning in the third ninth of the page, i. e. about one 

 third of the way down. Page numbers referring to descriptions of species 

 are printed in black face type. 



abdominalis, Chironomus, 243*. 

 aberrans, Chironomus, see Chirono- 

 mus aberrans. 

 aberrata, Diamesa, see Diamesa 



aberi'ata. 

 Ablabesmyia,89', 121', 125', 135'-55', 

 156' ; key to species, 136'-38'. 



(?) sp., 155*; explanation of plate, 

 32(f. 

 ' adumbrata, 155*. 



algens, 187", 149'. 



barberi, 137', 146^ 



bifasciata, 136', 139*. 



carnea, 136^ 136', 137^ 140*-42' ; 

 explanation of plate, 321'. 

 var. a, 137^ 

 i:ar. c, explanation of plate, 325*. 



discolor, 138*, 149^ 



dyari, 136^ 137^ 146»-47^ expla- 

 nation of plates, 32(y, 325^ 



fastuosa, 136*, 136', 138^ 153^-54" ; 

 explanation of plate, 32(y. 



flaveola, 138*, 151*, 152*. 



flavifrons, 136*, 136^ 138», 150=- 

 51^; explanation of plates, 320*, 

 325'. 



futilis, 137^, 139'-40*. 



guttularis, 137^ 145'-46^ 



hirtipennis, 138\ 154'. 



indecisa, 138", 152' ; explanation 

 of plate, 325^ 



johnsoni, 137', 147^-48*. 



melanops, 138', 149'-50* ; explana- 

 tion of plate, 325^ 



monilis, 122^ 136^ 136', 137*, 142^- 

 44', 153", 154S 156" ; explanation 

 of plates, 320', 320', 325*, 327^ 



nigropunctata, 138', 151^ 155*. 



Ablabesmyia ornata, 137^ 148*. 



pallens, 138% 151'. 

 var. a, explanation of plate, 325*. 



pictipennis, 136', 138'-39*, 156% 

 156% 



pilosella, 138*, 138', 152'-53'. 



pulchripennis, 137% 142* ; explana- 

 tion of plate, 330'. 



tibialis, 138% 153% 156*, 156% 



venusta, 137% 145' ; explanation 

 of plate, 325^ 

 absurdus, Orthocladius, see Ortho- 



cladius absurdus. 

 Adams, C. F., cited, 310% 

 adumbrata, Ablabesmyia, 155% 

 adumbratus, Procladius, see Procla- 



dius adumbratus. 

 Aeschna, 14'. 



sp., 14'. 

 Aesculus hippocastanum, 98'. 

 aestivus, Chironomus, 299^. 

 aestivus, Eurycnemus, 299^. 

 Agraylea, 64% 64% 74% 



cognatella, 75% 



multipunctata, 73% 74=-75' ; expla- 

 nation of figure, 331' ; figure, 73. 

 Agrioninae, 14', 

 Alasion, 93% 99% 



rondani, 106% 

 alaskensis, Telmatogeton, 169', 169% 

 albimanus, Chironomus, .9ee Chirono- 

 mus albimanus. 

 alhipennis, Chii-onomus, 194% 223% 

 albistria, Chironomus, 198% 199^, 



246% 

 albivitta, Pedicia, 8". 

 albomanicatus, Chirotenetes, -lee 



Chirotenetes albomanicatus. 



