174 



NORTH AMERICAN DIPTERA 



A.silid:e V. — 72, Eumecosoma shropshirei ; 73, Laphystia sexfasciata ; 74, Dioctria baum- 



haiieri ; 75, Dicolonus simplex; 76, Metapogon ; 77, Cerotainia propimiua ; 7S, Holopogon 



guttula; 79, Psilocurus birdi; SO, Boinbomima flavicollis; 81. Aphamartania; 82, Bathropsis 

 basalis; 83, Buckellia stylosa; 84, Laisopogon opaculus ; 85, Echthodopa. 



