76 Psyche [April 
~ A NOTE ON THE SPECIES OF FUCELLIA OF EASTERN 
NORTH AMERICA. 
By CuHarures W. JOHNSON. 
I have been greatly interested in the paper by Prof. P. Stein, “Zur 
Kenntnis der Gattung Fucellia Rob. Desv.,” (Wiener Entom. Zeit., 
XXIX, p. 11, 1910). A study of all the material at hand (over 60 
specimens), shows that all are referable to Pucellia marina Macq. 
and not to F. fucorum Fall. In referring to the distribution of the 
latter in Europe, Prof. Stein says:— “The true F. fucoruwm, as Lund- 
beck comprehends in his “ Diptera groenlandica,” is found very rarely 
on our German coasts and belongs more to the far North. I did not 
find it in any collection of my dipterological friends, for all that were 
sent to me under the name fucorum belonged to maritima Hal. I my- 
self caught only a single male in Thiessow on the Island of Ruegen, 
together with maritima Hal. But as I took with it comparatively few 
specimens, that I at that time held for the same species, it is possible 
that after all fucorum is also more abundant on Ruegen. On our 
Baltic coasts I have never yet observed it. When Landbeck declares 
that the species is spread over the greater part of Europe as far as 
Trieste, this rests on the assumption that the fucorwm quoted by the 
author is Fallen’s species, which is, in fact, not the case. Aside from a 
type of Lundbeck’s, specimens are before me that were caught in 
Alaska (St. Paul Isl.), Friday Harbor (Washington, U. S.), and in 
Behring Str. (Miednaja).” 
Among some diptera obtained by several collectors in Labrador and 
Newfoundland I find only F. marina. Still there is little doubt but 
that F. fucorum is to be found on those shores, but very doubtful if it 
will be found as far South as New England. The following table 
comprises the four species from Eastern North America :— 
MALES. 
1. Posterior femora on the underside at the base with a thick tuft of short 
bristles, apex of the wing not clouded... ............5.+..04 ose eee 2 
Posterior femora without the thickened tuft of bristles at the base, but 
on the underside along the whole length with rather strong bristles of 
nearly equal length, apex of the wing clouded.........pictipennis Beck. 
