8 4 



NORTH AMERICAN DI1TKRA. 



Pig, 25. Tipulidse. 1, Limophila luieipennis; 2, Dicranota riv- 

 ularis; 3, Plectromyia modesta; 4, Amalopis calcar; 5, Trichocera 

 bimacula; 6, Cryptolabis paradoxa; 7, Goniomyia sulphurella; 8, 



