422 



NORTH AMERICAN DIPTERA 



Tachinidje I. — 1, Lydella; 2, Aphria occidentalis ; 3, Spallanzania hebes; 4. Leschenaultia 

 adusta ; 5, Acemya dentata, antenna; 6, Atacta ; 7. Peleteria; S, Voria riiralis; 9, Tachin- 

 omyia robusta ; 10, Cistogaster; 11, Archytas; 12, 13, Gonia, head, dorsal and lateral views; 

 14, Epigrimyia? ; 15, Alophora; 16, Plectops; 17, Dejeania vexatrix. 



