(3Y- 



IHnibergitp of iHaine 



iFicultural Expeiiiiieiit Station 



ORONO 



r^ 



BULLETIN No. 200. 



JUNE 1912, 



THE FUNGUS GNATS OF NORTH AMERICA, 

 Part IV (Conclusion), 



CONTENTS. 



PAGE 



Introduction • . 57 



Economic relations 57 



Mycetophilinae ............... 59 



Phronia 59 



Telmaphilus ^z 



Exechia 64 



Dynatosoma .................. 75 



Opistholoba -/-j 



Epicypta ^7 



]\Iycothera - • 80 



^[ycetophila 84 



Sceptonia . ■ ■ io() 



Zygomyia ................... lOQ 



Sciarinae . iii 



PAGE 



Eugnoriste 113 



^.lanota IT4 



Pnyxia 114 



Trichosia • • 115 



Zygoneura 1 16 



Metangela 116 



Phorodonta 117 



Rh^-nchosciara 117 



Sciara 1x7 



Types and paratypes .......... 140 



Type locality . 142 



Expl. of Plates 142 



Addenda 144 



(jcneric index, Pts. i to 4 14S 



