182 THE ENTOJrOLOfxIST's RECORD. 



§ Striuata, MiilL, " Faun. Frid.," p. 51 (1764).— Unfortunately this 

 name is invalid, for Seopoli published another strigata among the 

 Geometers the year previous {=pma)ia, Linn.). 



Yernaria, Fb., " Syst. Ent.," p. 620 (1775). — Apparently not perr 

 sonally known to Fabricius, but founded on Linne and on Eoesel's 

 figure. It agrees in the main with ^trif/ata, Miill., and perhaps 

 strengthens the possibility at which I have already hinted in dealing 

 with vernaria, L., but how little claim Fabricius has to be regarded 

 as an authority on this particular name is shown by the fact that 

 ^^ vernaria, lAnn.,'" in the Banks collection (probably named, or at 

 least sanctioned by Fabricius) is a Metrocainpa uiart/aritata ! 



■'Thyniiaria (Schift'.), " Schmett. Wien.," p. 97 (1775). — Thipniaria, 

 Linn., cited by SchiflermiiUer, Avas founded on a mixture of Thalera 

 fimhrialh, Scop., and Hcim'thea strii/ata, Miill., and even though 

 Linne's types belong to the latter, the name was founded on the 

 conception derived from Frisch's thyme species (^Tinibrialin, Scop.), 

 and a sufficient case can therefore ])e made oiit for the application of 

 Merton Eule 24, "A name which involves a false proposition . . . 

 may be changed." 



\^stivaria, Hb., "Btr.," i., pt. 4, p. 22, pi. lii. R. (1789).— This 

 name is in every Avay unobjectionable, and was in general use on the 

 continent until the modern ^ra of priority-law. It should without 

 doubt supersede strigata, Miill., unless the doubtful claims of vrrnaria, 

 Linn., can be accepted. 



4. (j-eometra {Ncmoria) rlridata, Linn. — I have already pointed out 

 that the accepted synonymy of this species has been upset by Werne- 

 burg for nought ; I may add that it is not clear why he renames it 

 Ijraunata : even if his assumption that it was not the true viridata of 

 Linne had been well-founded, I do not see anything against the 

 employment of Hiibner's name of doraria (tig. 352). 



I subjoin a summary of the synonymy as given in this article ; the 

 remainder of the specific names stand as in Staudinger's Catalogue. 



1. Metrocampa margarituta, L., '• S. N.," xii. (1767), nee margaritaria, L., 

 "F. S." (1761), CI. WSesquhtriativia, Knoch (1781). (I have added the earliest 

 available s.ynonym in case the name margaritata should need to be rejected). 



2. lociis * vernaria (Schiit.), '' Hehm. Wien." (1775), )?cc Linn. * Mruginaria, 

 Bkh. (1794), nee Schift'. Chrysopramria, Esp. (1794). § Lveidaia, Don. (1794), 

 nee Fb. * Vohitata, Wernbg. (1864), nee Fb. 



;j. Hemithea '? vernaria, Linn. (1761), nom. dub.; ^Strigata, Mull. (1764), Jiec 

 Scop. * Tliymiaria (Schift'.), " Schm. Wien." (1775), nee Linn. .Estivaria, Hb. 

 (1789). 



4. Nemoria viridata. Linn. (1758). |! Cloraria. Hb. (■?1804). || Frasinata, 

 Wernbg. (1864). 



Migration and Dispersal of Insects : Lepidoptera. 



By J. W. TUTT, F.E.S. 



So far as one is able to get at the real facts (/.'., apart from the 

 opinions of observers) one is able to conclude that the movements of 

 Anosia archippus, in North America, are very similar to those of 

 Pyramcis carditi in Europe. Like the latter, it appears to have its own 

 subtropical (and tropical) permanent home, and more or less each 

 season, but more particularly in occasional seasons, to send out large 

 numbers from these centres in northerly, easterly and westerly 

 directions, reaching well up into Canada and the North-west Territory, 



