404 NEW YORK STATE MUSEUM 



CADDIS FLY LARVAE AND PUPAE 



15 Molanna cinerea Hagen 



S Polycentropus lucidus Hagen 



2 Hales us no. i {seep. 567) 



2 Hales us no. 2 (j-^-^ p. 568) 

 3Halesus no. 3 [see p. ^6g) 

 13 unclassified ... 43 in all 



DIPTEROUS LARVAE AND PUPAE 



3 Sepedon fuscipennis Loevv 



I Bittacomorpha clavipes pupa, probably from the farthest 

 point in shore 



7 Simulium venustum Say 



8 Tabanid larvae (undetermined) from the bottom in the edge of the 

 channel in open water 



I crane fly pupa (undetermined) 



107 gnat larvae (Chironomidae: all undetermined) of four species 



Numerous minute Ceratopogon? larvae were observed in the 

 algae associated with still more numerous Limnicolous oligo- 

 chaet es. 



Second plot. The second plot selected for study was in the upper part 

 of the hatchery grounds, just below the railroad bridge. It was a strip 

 across a bed of bur reeds (shown in the foreground of plate 3) and was 

 similar in form and about equal in area to the preceding. Collections 

 were made precisely as before, but the conditions in the plot were some- 

 what different; the water was of about the same depth, but there was 

 more of a current flowing through the bur reeds. Potamogeton and 

 Nitella and filamentous algae were perhaps a little less abundant in the 

 water here, specially the algae. The date was July 27. 



The list for this second plot is a short one, in species, if not in individ- 

 uals. It is as follows : 



I bullfrog, Rana catesbiana Shaw 



I crawfish (undetermined) 



MOLLUSKS 



13 snails: 11 Campeloma decisum Say; 2 Limnaea de- 

 si d i o s a Say 



245 clams, mainly Sphaerium simile Say 



117 CADDIS FLIES 



27 Molanna cinerea Hagen 



22 H y drops ych e sp.? (near phalerata) Hagen (j-d-*? p. 566) 



