121 



of my paper by Mr. Hülst, will i-emain as a permanent record of 

 the futility of Mr. Smith's opinions, which Mr. Hülst, and quite 

 naturally, considers to be of the "highest value". The enlarged figiire 

 here given of the neuration of Cerathosia is from a dry preparation 

 (Dimmoek's method). Six examples do not apparently vary in the 

 slightest. 



Postscript. 



Note on the Thyatiridae etc. 



Mr. Dyar writes, that: "Bombycia Candida of Smith niust be 

 removed from ßombycia because vein 6 arises below tbe apex of coli. The 

 wings are rather narrow and the maculation also suggests Euthyatira, 

 although the accessory cell is not long, not reaching over '/'s lengtli lo apex". 

 Thus it would fall inio Thyatira in the Synopsis; but Mr. Dyar would prefer 

 to accoinmodate this form in order to associate it witli semicircularis 

 under Euthyatira. In his published paper Mr. Dyar refers bofli lorata 

 and semicircularis to Eutliyatira; thus all the three species placed here 

 under Persiscota are refered by Mr. Dyar to Euthyatira, and the new 

 term appears superfluous. It seems to me howevor certain, that uiy Persiscota 

 semicircularis, if not my lorata, is structurally and generically different 

 from Euthyatirapudens, I therefore do not change my deterraination, 

 because very little material in the group has beeu yet examined: of the three 

 species of Persi scota only the Single types appear to be knuwn, the larvae 

 are of course undiscovered. The term Persiscota will surely bccome 

 available for one or more of the three species, but it is possible with another 

 type than that here indicated by me. I am very glad so good an authority 



