182124 
INTRODUCTION 


yf; and « Zutrage » in our Introduction to the former work, it is not necessary to 
:\ go over the same ground again; but a few supplementary observations may not 
=A. be out of place. 
The 12 species to which Htitbner published letterpress in Latin and German, were 
probably the first issued plates of the Sammlung, and the list is as follows : 
Iphiclides Ajax, Pennsylvania; 
Leptosia Brephos, Brazil; 
Ithomia Doto, South America; 
Mechanitis Polymnia, Brazil; 
Eieides Dianasa, Brazil; 
Asterope Sapphira, Brazil; 
Eurybia Halimede, Brazil; 
Heliochlzna Leucosia, Brazil; 
Syrmatia Nyx, Cuba, Surinam; 
Cycnus A#tolus, Brazil; 
Thysanotis Athemzena, America; 
Thracides Salius, Brazil, 
We have spoken already of the difficulty of ascutaining the exact dates of publication of 
Hibner’s works. 
The two-page tract known as the « Tentamen » is supposed to have been issued 
in 1805; it is a list of generic and specific names of European Lepidoptera. Htibner’s 
« Verzeichniss-bekannter Schmetterlinge » appeared in sheets; and the probable 
dates of publication are given by Mr C. Davies Sherborn (See Annals and Magazine of 
Natural History, Jan. 1912) approximately as follows : 
Pages I-16 (1816); 17-80 (1818); 81-160 (1820); 161-240 (1822); 241-304 (1825); 305-432 
(1826); Anzeiger (1827). 
When a species figured in Hiibner’s Zutrage is referred to in the Verzeichniss, it 
should be regarded as the type of its genus, but otherwise one of the species placed under the 
same generic name in the Verzeichniss should be accepted. Whereas the species figured in 
the Sammlung were almost always previously described by other authors, most of those 
