1931 ] 
Wiedemann's Diptera Exotica 
25 
AN INTERESTING COPY OF WIEDEMANN’S 
DIPTERA EXOTICA 
About 1893 I purchased a copy of Wiedemann’s “Diptera 
Exotica” from a European dealer. I did not examine it 
carefully at the time, and it was not until about 1915 
that I discovered that pages 39 to 42 were missing. Com- 
paring it with the copy in the Boston Society of Natural 
History, I find that the title page is quite different and 
reads as follows: 
Diptera Exotica 
Sectio I. antennis multiarticulatis 
Munus Decani Fac. Med. deponens 
edidit 
Dr. C. R. G. Wiedemann 
Kilise 1820 
Following page 38 instead of page 39 is the usual title- 
page of the work: 
C. R. G. Wiedemann 
Med. Doctoris, in Acad. Kiliensi Prof. Med. P. 0. 
Diptera Exotica 
Pars I 
TABULIS iENEIS DUABUS 
Kilise 1821 
