DIXID^. 



95 



ent; the two basal cells complete; the anterior cross- 

 vein is near the beginning of the third vein, where the 

 second vein curves forward. 



The family Dixidae comprises about a score of known 

 species belonging to the single genus Dixa. The genus 

 has been placed among the Tipulidse and Culicidae, but 

 is provisionally isolated into a separate family. The 

 larvae are aquatic, living in ponds or slowly running 

 w r ater; they resemble those of the mosquitoes. The flies 

 are found in bushy, moist places about forests, and have 

 been observed by Winnertz dancing in the air in s\varms. 



