PHILIPP C. ZELLER AS A DIPTEROLOGIST 
137 
abundance of illustrations on plates, or in single figures, which 
are wanting in most of Loew’s papers on the same subject. As a 
specimen, I would recommend for study the article on the difficult 
genus Chrysotus (Verb, zool.-hot. Gesellsch., Wien, 1874) with its 
admirable plate of details. 
A due tribute to Kowarz was rendered to him recently by Dr. 
Joh. Schnabl, in Warsaw ( apropos of Anthomyiae ), in the words: 
“ Der ausgezeichnete Forscher in der Dipterologie, F. Kowarz, 
gehort zu den ersten, welche liier den Weg offneten ” ( Wiener Ent. 
Zeit., 1902, p. 135). 
I have not the slightest doubt that future workers will more and 
more appreciate Kowarz, will admire the independence of his re¬ 
searches (under his difficult and straitened surroundings), and will 
consider him among the foremost dipterologists of the latter half 
of the nineteenth century. 
Unfortunately, Kowarz, some time before his retirement, was 
compelled by his circumstances to part with his library and with 
his collection (the latter was purchased by Mr. G. H. Verrall, of 
Newmarket, England). Under these conditions it will be still 
more difficult for him to continue his work on Diptera. 
XVII PHILIPP C. ZELLER AS A DIPTEROLOGIST 
Philipp Christoph Zeller was born on April 9, 1808, 
in Steinheim, on the Murr (Wurtemberg), and died on March 27, 
1883, in Griinhof, near Stettin. A short obituary notice with a 
portrait will be found in the Stett. Ent. Zeit., 1883, p. 406; a 
longer, very sympathetic account of his life and distinguished 
services, as one of the greatest of lepidoptelists, was published in 
the same periodical by the competent hand of the lepidopterist 
Frey in Zurich (Stett. Ent. Zeit., 1883, p. 413-416). A veiy 
characteristic postscript is added to it by Dr. C. A. Dohrn, 
President of the Entomological Society in Stettin. 
For a long time I had been meditating a paper on “Zeller as a 
Dipterologist,” and now I avail myself of the opportunity for 
inserting a notice about him here. 
