AQUATIC INSECTS IN THE ADIRONDACKS 403 



I C. d i V i s a Uhler 



7 Liburnia pellucida Fabr., of which two were females, one 

 macropterous, and one micropterous 



I Chermes sp.? (apterous) 

 3 Aphids (undetermined) 

 I Lygaeid (undetermined) 



FLIES, AND OTHER DTPTERA 



65 Hydrellia scapularis Loew . A number of other little 

 Muscidae, some of them apparently of different species, escaped 

 I crane fly '^ (undetermined) 

 I mosquito $ (undetermined) 

 3 gnats of three species (undetermined) 



MISCELLANEOUS 



I Psocid, Peripsocus madidus Hagen 



1 Anthicid beetle, Notoxus anchora Hentz 



8 parasitic Hymenoptera: Telenomus longicornis Ashm^ 

 I $ ; Brachystropha quadriceps Ashm.^ i $ ] Rhizarcha 

 a s t i g m a Ashm.^ i (^,3 $s; Aphidius ni gripes Ashm.^ 25s 



The following insects were taken from the water. 



DRAGON FLY NYMPHS 



4Aeschna constricta Say of various sizes, one full-grown 

 7 Cordulegaster maculatus Selys 

 3 Gomphus scudderi Selys 

 6 Gomphus spicatus Hagen 



2 Ophiogomphus aspersus Morse 

 2 Basiaeschna Janata Say 



2 Sympetrum assimilatum Uhler 



MAY FLY NYMPHS 



2 Hexagenia variabilis Etn. 

 5 Ephemera varia Etn. 



3 EphemereUa excrucians Walsh 



5 Caenis diminuta Walker. These nymphs are so hard to find 

 among the stems to which they cling very closely, that more were prob- 

 ably present but not seen. 



1 Described on p. 586-88. 



