No. i.] SOU/-: MUSCINAE OF NORTH AMERICA. 



tica is about one-fourth as wide as the head ; the frontal vitta 

 of the female corvina is of uniform width throughout, while that 

 of the female donicstica is narrow near the antennae and broad- 

 ens out very considerably towards the vertex. Specimens from 



FIG. 13. 



Jamaica, agreeing with Macquart's description of M. basilaris, 

 are certainly M. domcstica. 



GrapJiomyia (Fig. 15). --Our single species does not differ 

 structurally and has but insignificant color differences from G. 



FIG. 14. 



metadata Scop., with which I identify it. G. americana Desv. 

 is the same species. 



SyntJiesiomyia. - - S. brasiliana BB. occurs in Florida and 

 in Georgia (Fig. 16). It is the only species of the genus. 



Morellia. - - M. micans Macq. (Fig. 17) is very common all 

 over the United States. Bluish black ; thorax with three broad 



