MAY FLIES AND MIDGES OF NEW YORK 329 



Eretmoptera (after Kellogg) 



15 Foot of imago 



10 Palp of imago 



17 Labium of imago 



18 Hypopbarynx of imago 



19 Labiiim-epipbarynx of imago 



20 Haltere of imago 



21 Dorsal aspect of tbe male 



22 Antenna of male 



23 Antenna of female 



24 Male genitalia 



Didymorphleps (after Weyenbei-gh) 



25 Wing of imago 



Biirmeisteria (after Weyeiibergh) 



26 Wing of imago 



27 Lateral aspect of bead and tborax of male 



28 Haltere' 



Stenoxenus (after Coquillett) 



29 Wing of female 



PLATE 36 

 Corynoneura lemnae (after Frauenfeld) 



1 Lateral aspect of larva 



2 Anterior prolegs of larva 



3 Posterior prolegs of larva 



4 Caudal end of pupa 



5 Lateral aspect of pupa 



Corynoneura sp. (after Wiunert/,) 



6 Hind leg of imago 



7 Wing of imago 



8 I'alpus of imago 



9 Antenna of male 



10 Antenna of female 



Clunio marinus 



11 Lateral aspect of larva (after Carpenter) 



12 Dorsal aspect of male (after Tbeobald) 



13 Dorsal aspect of female (after Carpenter) 



Diamesa culicoides (after Heeger except fig.ll) 



14 Lateral asjiect of larva (after Brauer) 



15 Dorsal aspect of larva 

 IG Ventral aspect of pupa 



17 Lateral aspect of pupa ' 



18 Alandible of larva 



19 Labium of larva 



20 Maxilla of larva 



21 Labrum of larva 



22 Antenna of larva 



23 " Underlip " (i. e. bypopbarynx ) of larva 



24 Claw of bind foot of larva 



25 Anterior proleg of larva 



