AQUATIC INSECTS IN THE ADIRONDACKS 583 



Camnula peUucida Scudder 



Dissosteira Carolina Linnaeus 



Spharagemon sp. ? (nymph) 



Podisma glacialis Scudder. On bushes in openings in the 



woods. 



Locustidae 



Scudderia pistillata Brunner 



Xiphidium fasciatum DeGeer 



HEMIPTERA 



I was struck with the absence of the larger aquatic Hemiptera, such 

 asBelostoma, Zaitha, Nepa, etc., from all the waters in 

 which I did any collecting about Saranac Inn. I was not looking for 

 them ; but, if they had ever got into my net, as they have done unfail- 

 ingly in every other locality in which I have ever collected, they could 

 not but have been seen. OfRanatra I caught a few specimens in 

 the vegetation about the shores of Bone pond. Of terrestrial Hemiptera 

 there seemed to be no scarcity. 



MECOPTERA 

 Panorpa signifer Banks 

 Panorpa nebulosa Westw. 



These were not uncommon in the damp woods along the road between 

 the railroad and Little Green pond. 



COLEOPTERA 



Though little attention was paid this order, considerable material was 

 collected. But two species were reared, however: Galerucella 

 n y m p h a e and Donacia emarginata. The latter species 

 was associated with D. s u b t i 1 i s Kunze and D. p u s i 1 1 a Say; 

 and, because of unfamiliarity with the distinctive characters of Donacia 

 larvae and pupae, I have been unable to determine as yet whether I have, 

 among the numerous larvae collected, those of more species than the one 

 that was reared. For the present, I content myself with giving a few 

 biologic notes and figures. Plate 9, from photographs made from life, 

 of Donacia emarginata Kirby on Sparganium in several 

 stages will doubtless be- welcome to entomologists. The material for 

 these photographs was obtained while making the second quantitative 

 study detailed in part 2, and farther oecological information is there 

 recorded (see pages 404, 405). 



A figure is also given of the singular bug-like Macronychus 

 glabratus in plate 12 (fig. 9) a species commonly found associated 



