360 PROCEEDINGS OF THE NATIONAL MUSEUM vol. los 



group (couplet 5) contains M. angelicae and M. tamia, M. aeneiventris 

 sens. str. not occurring in North America. Hering and others in 

 Europe have recently restricted the name aeneiventris Fallen to the 

 species with dark calypteral margin and fringe, the larvae of which 

 mine the stems of Urtica spp. I have not seen this species in North 

 America and Melander's specimens have the calypteral fringe white. 

 M. lappae (Loew) must be dropped from the North American list for 

 the reasons stated under M. angelicae (Frost) . The cunctata group is 

 missing in North America. This group has the calypteral margin and 

 fringe dark and the orbital setulae irregular with the posteriormost 

 proclinate. 



The next thi-ee gi'oups are interesting when compared to the Palae- 

 arctic fauna. The cunctans group (couplet 7) has all orbital setulae 

 reclinate and the calypteral margin and fringe white. North America 

 has nine species, of which four are Neotropical, in contrast to Europe's 

 two with one extending into North Africa. The next group (couplet 

 16) may be called the pulicaria group. Here the calypteral margin 

 and fringe are brown or black and the genovertical plates do not 

 extend beyond the eye margin (fig. 33). North America has five 

 Neotropical representatives while there are two in the southern 

 Palaearctic region, one extending into Europe. M. pulicaria is 

 deleted from the North American list because Melander's specimens 

 of morionella obtained from Strobl belong to the genus Ophiomyia. 



The last group (couplet 20) may be named schineri, for the oldest 

 described species. The calypteral margin and fringe are dark and 

 the genovertical plates extend beyond the eye margin (fig. 38). 

 There are nine known species from central and northern Europe and 

 six Nearctic species. The biologies are known for seven of these 

 species and the larvae of all but one form galls on the twigs of such 

 woody plants as Cytissus, Salix, Populus, and Tilia spp. The larvae 

 of the other species, M. simplex, mine the stems of Asparagus sp. 



Key to the described species of Melanagromyza 



1. Orbital setulae either all reclinate or reclinate with a few anterior ones pro- 



clinate (fig. 24) 2 



Orbital setulae either mostly proclinate (fig. 22), or irregular with the posterior 

 setulae erect (fig. 42) 4 



2. Orbital setulae with a few anterior ones proclinate, all others erect to re- 



clinate (fig. 24) 3 



Orbital setulae all reclinate (fig. 21) 6 



3. Calypter with margin and fringe white dianthereae 



Calypter with margin and fringe brown burgessi 



4. Orbital setulae proclinate, except for a few that are oroot adjacent to the eye 



margin (fig. 22) 5 



Orbital setulae irregular — proclinate, erect, and reclinate, postciiorinost 

 erect (fig. 42^1 virens 



