AQUATIC INSECTS IN NEW YORK STATE 487 



EXPLANATION OF PLATES 



PliATE 1 



Renwick lagoon at the head of Cayuga lake, Ithaca N. Y. Character- 

 istic shore vegetation. Photo by J. H. Comstock 



PLATE 2 



Ren-wick lagoon, open water. Photo by J. H. Comstock 



PliATE 3 



Upper reaches of a bayou leading from Renwick lagoon across " the 

 Hats." Photo by .1. H. Comstock 



PLATE 4 



Two views along Pall creek, near Ithaca N. Y. (1) Forest lake, looking 

 toward the fall where the creek enters. (2) In the bottom of the gorge; 

 one of the many small cascades; Simullum territory. Photos by H. N. 

 -Ilowland 



PLATE 5 



Aeschna constricta Say 



1 Male imago. Photo from life by J. G. Needham 



2 The nymph approaching a back swimmer. Drawing by Miss Anthony 



PLATE 6 



Unknown caddis fly larva, eaten by Bone pond brook trout 

 1 Head of larva. 2 End of abdomen. 3 Case. 4, 5 and 6 L/egs of one 

 side. 



PLATE 7 



Callibaetis skokiana Ndm. 



1 Imago 



2 Nymph 



Photo from life by .1. G. Needham, colored by Bliss Anthony, after life 



PLATE S 



Epiphrasnia fascipennis Loew. Drawing by Miss Anthony 



PLATE 9 



Epiphragma fascipennis, larva and pupa. Drawings by 

 Miss Anthony 



1 Larva, liitera) view, anal gills almost withdrawn into the body 



2 Respiratory disi; on end of abdomen of larva 



3 Pupa, ventral view 



PLATE 10 



Diptera 



Immature stages 



1 Larva of an unknown Leptid from rapids 



2 One of its pairrd bifurcated abdominal prolegs, showing grappling 

 booklets protruded 



3 Pupa of T ! p u 1 a f 1 a v i c a n s Loew 



4 Larva of an unknown Tipulid from springs 



5 End of abdoiTpn of same from above 



