400 



Wirth and Stone: Diptera 



cos,a^ suocosta^ merf«rf__ radi± medial { adius ; 



rross-Min \ cross-Mill x mdim 



radius ^j r, 



Fig. 14:18. Dixidae. a, O/xo sp., female; b, Dixa brevis Garr., wing; c,d, Dixa californico 

 Joh. larva: c, ventral view; d, dorsal, e-i, Dixa aliciae Joh,: e, caudal end of larva, dorsal view; 

 f, larva, ventral; g, pupa; h, head of larva, lateral view; i, same, dorsal. /,k, Dixa chalonensis 

 Now., larva: /, ventral view; k, dorsal (a, Kellogg, 1905; b-o 1 , /,k, Nowell, 1951; e-i, Johannsen, 

 1934). 





