108 
LOEW AS A D1PTEKOLOGIST 
observations of Bouchd (1837). In regard to the systematic posi¬ 
tion of Sciara, Loew, during his whole life-time, remained in an 
incomprehensible perplexity, and made, as I shall show further on, 
repeated and undeserved reproaches on this subject to Meigen and 
Macquart. It is worthy of notice that in the same volume of the 
Stettincr Zeitung (1843) in which the very unsatisfactory paper on 
Ceratopogon and Sciara appeared, there are two other papers by 
Loew which foreshadow his best manner, descriptive and critical 
essays on Chrgsogaster and Milichia. 
To Loew's work on the biology of Diptera must be referred the 
following papers on the paedogenesis of Cecidomyiidae : — 
No. 151 bis. 1 Bericht liber die lebendig gebahrenden Dipteren- 
Larven, etc., Berl. Ent. Zeit ., 1864, under the heading Neuere 
Litteratur, p. v-x. 
No. 166. Notiz liber eine neuere, die lebendiggebarenclen Dipte- 
ren-Larven betreffende Publication (Berl. Ent. Zeit., 1865, p. 270). 
Loew’s versatility appeared to advantage in several publications 
on economic entomology: — 
No. 97. Ueber die den Roggen, etc., verwiistende Fliegenmade. 
Schles. Zeitschr. Ent., 1858. Cecidomyia secalina , sp. n. 
No. 111. Die neue Kornmade, etc., 1859 ( Cecidomyia secalina 
Loew). This paper was published in pamphlet form and, as Loew 
informed me (March 18, 1859), proved a success ; 800 copies were 
sold in less than four weeks. 
No. 196. Thierische Parasiten (Coleoptera, Lepidoptera, Diptera, 
etc.) — Jahrb. d. Landwirthschaft, Vol. Ill, 1870, p. 522-539. The 
title is misleading, as the contents refer almost exclusively to insects 
injurious to agriculture, and are principally extracts from other 
publications. The Diptera are four Cecidomyiae, several Cldorops, 
and Oscinis frit. 
A work on “ Insects noxious to Agriculture,” prepared as a 
prize-essay in collaboration with Schaum (already mentioned by me 
in Chapter XIV) remained unpublished. 
I shall endeavor now to give a survey of Loew’s work upon the 
1 This paper was inadvertently omitted in my “ Verzeichniss,” etc., in the Verh. 
zool.-bot. Gesellsch., Wien, 1884. This omission will be noticed under 104, 1884, of my 
“ List.” 
