MAY PLIES AND MIDGES OF NEW YORK 327 



Heteromyia (after Say) 



8 Wing of imago 



9 Fore leg of iningo 



10 Antenna 



11 Wing of imago 



12 Wing of imago 



13 Wing of adult 



14 Antenna 



15 Wing of imago 

 IG Wing of imago 



Podonomus (af(or riiilippi) 



Procladius (after Skiise) 

 Spaniotoma (after Philippi) 



Isoplastus (after Skuse) 

 Pentaneura (after Philippi) 



Ablabesmyia pulchripennis (after Lundbeek) 



17 Wing of imago 



Tetraphora (after Philippi) 



18 Wing of imago 



19 Antenna of imago 



Tanypus posticalis (after Lundbeek) 



20 Wing of imago 



Heptagyia (after Philippi) 



21 Wing of imago 



22 Antenna of imago 



23 Palpus of imago 



Procladius nervosus (after V. d. Wulp) 



24 Wing of imago 



Chironomus prasinus 



25 Labium of larva (after Hammond) 



Chironomus sp. 

 20 Labium of larva (after Osbnrn) 



Chironomus tentans (after Weyenbergh) 



27 Labium of larva 



28 Apex of mandible of larva 



