AQUATIC INSECTS IN THE ADIRONDACKS 393 



Special collections were made of aquatic insect species hitherto insuf- 

 ficiently known, of which not a few species known only from a few poor 

 specimens appeared at Saranac Inn in great numbers ; and we took oc- 

 casion to gather good series of specimens of such, and also of a few 

 new species which were no less abundant. 



The most valuable collections were those of life history material. All 

 that is described in part 3 of this report as coming from Saranac Inn has 

 been added to the state museum; and so important is this material that 

 future monographers in several groups will find it very desirable to con- 

 sult the collections at Albany. 



Aquatic insect fauna of the Adirondacks. All that has been 

 written on this subject is comprised in a few short paragraphs in two 

 papers by Dr Lintner,i in a few isolated descriptions of Adirondack 

 species, like that ofSimulium pictipes, from Ausable river^ by Dr 

 Hagen,'-^ in a record by Dr Calvert^ of a few dragon flies collected at 

 Lake St Regis by J. Percy Moore in 1890, and at Keesville by W. 

 Sheraton in 1894, and in rare locality references in other lists. The 

 Adirondacks are not less interesting entomologically than the White 

 mountains, which have been the resort of New England entomologists 

 for half a century. 



The following lists, while not even pretending an approximation to 

 completeness (excepting, perhaps, the suborder Anisoptera of dragon 

 flies) add a considerable number of species, not hitherto known to occur 

 within our fauna; and also, a small number of interesting new species. 

 Of these I have described three species and a variety under the following 

 names : L e \i c t r a 1 e n e 1 1 a ; S i s y r a u m b r a t a ; i'. ) i m a c i a 

 dictyo.na; Gomphus descriptus var borealis. 



I have also described the male of the interesting pygmy May fly, 

 Baetis pygmaea Hagen, hitherto known from a fragment of 

 a single female specimen, and the female of the beautiful dragon fly, 

 Leucorhinia glacialis Hagen (pi. 10). 



Mr D. W. Coquillet has described at my request two new genera and 

 species of Diptera {see p. 585 and p. 586) ; and W. H. Ashmead has 

 described five new species of parasitic Hymenoptera {see p. 586) and 

 Mr A. D. MacGillivray, two new species of sawflies {see p. 585) . 



As the region about Saranac Inn differs considerably from most locali- 

 ties in the Adirondacks, as stated above, its insect fauna will doubtless 



1 Lintrier, J. A. Collections In the Adirondack region. 5th rep't N. Y. state entomologist, 1889. 

 p. 231-86. 



10th rep't p. 3T6-77. 



2 Hagen, H. A. A new species of Simulium with a remarkable pupa case [S I in u 1 1 u m picti- 

 pes]. Bost. soc. nat. hist. Proc. 1879. 20 : 305-7. 



3 Calvert, P. P. Odonata of New York state. N. Y. ent. soc. Jour. 1895. 3:39-43. Additions, 1S97. 

 5:91-95. 



