G. W. Johnson.
An Interesting Copy of Wiedemann's Diptera Exotica.
Psyche 38(1):25-26, 1931.

This article at Hindawi Publishing: https://doi.org/10.1155/1931/79083
CEC's scan of this article: http://psyche.entclub.org/pdf/38/38-025.pdf, 96K
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19311 Wiedemann's Diptera Exotica
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. Pars I
Pu&f 38:25-26 (193 1). hup Ytpsychu einclub nrgt18138-025 html



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26 Psyche [March
Following this and in place of page 41 is the sub-title page
Dipterorum exoticorum
Sectio I1
Antennis parumarticulatis
which is placed in front of page 43, "Supplementum ad sectionem I." It should have been placed in front of page 45, "Section 11. Antennis parumarticulatis." The text on page 38 ends some distance from the bottom, with a - . Evidently whoever compiled the book lacked pages 39-42, and, thinking that the two leaves con- taining the title page of 1821 and the sub-title of Sectio 11, filled the gap, bound them accordingly. All references to this work bear the date 1821. However, from the copy here described, it is very evident that the first 38 pages and probably pages 39-42, and the supplement to Section I, pages 43 and 44, were published in 1820 and not in 1821. Pars I on the title page of 1821 would indicate that the author contemplated other volumes.
It would be of interest to know if there are any other copies giving 1820 as the date of publication of the first section. This copy has been presented to the library of the Boston Society of Natural History.




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