42 



NORTH AMERICAN DIPTERA 



2nd A 



2adA 



1st A ^"' 



2nd k 1st A 



2adA 



Co, M, 



2nd A 



2nd A 



1st A 



2nd A 



1st A Cu,, 



1st A Cn, 



1st A Cu, 



Tipuloidea, Plate 111.-21. C.Undrot„„.a tarsal!, ^^ation: 22^ Pha^ro^ 

 venation'; 2P,. Phalacocera ""'d-^*-^-; -^^Xepla) Kw^ 2-- D-ranoptycha 



(Hclius) flavipes, venation ; 26. ^"'"'''^^^J" °™ (Limonia) hnmatura, vena .on 



Sf^'-^^aiTHcSo^'Sotr'^atrf'^-Sexatcna (He.ato.na) .e.acera. venat.on . 

 32: Hexatoina (Eriocera) longicornis, venation. 



