106 
LOEW AS A DIPTEEOLOGIST 
magen ” (jabot, crop) of Diptera (1843) ; No. 16. Some anatomical 
remarks about Neuroptera (1843) ; No. 54. Same subject (1848) ; 
No. 107. On the halteres of Diptera (1858), a paper with the mere 
negative result of refuting the view of Braxton Hicks, that they 
were organs of smell. 
These publications prove that, between 1841 and 1843, Loew 
took a very lively interest in insect anatomy. The more strange 
it is that this interest seems to have disappeared later, and that 
Loew’s anatomical knowledge did not leave any apparent trace in 
his later descriptive work, or in his views on classification. In 
Loew’s Preface to the second edition of his “ Posener Dipteren ” 
(1840), he intimates that, “ as a preliminary result of a considerable 
number of anatomical researches,” an arrangement in many respects 
more natural than Meigen’s might be brought about (compare 
the whole passage, reproduced by me in Chapter VII). Loew never 
kept this promise. 
Loew did not publish much on the biology of insects. Of this 
class of papers we find, in Hagen’s “ Bibliotheca” : — 
No. 12. On the habit of Gelechia lappella Linn. (Microlepidop- 
tera). ( Stett . Ent. Zeit., 1842.) 
No. 13. Remarks on some larvae of Ceratopogon and Sciara 
(ibid., 1843), a paper about which I shall have something to say 
below. 
No. 14. On the caprification of figs. (Ibid., 1843.) 
Finally, under No. 48 (1847) we find a paper which, as we shall 
presently see, was in its kind unique among Loew’s publications. 
As it has been published in a rather inaccessible periodical, and has 
for this reason remained almost unknown, I shall add a detailed 
abstract of it here. 
Mittheilungen iiber die Verwandlungsgeschichte einiger Insecten und iiber ihren 
Haushalt auf Pfianzen 
(Allgem. Deutsche Naturhist. Zeitung ; Dresden u. Leipzig, 2. Jahrg., 1847, 
p. 287-301, with a plate.) 
Loew begins with praising the growing taste for entomology in Germany, which 
he attributes to the recent foundation of the Entomological Society in Stettin, and 
the facilities it offers to students in promoting correspondence and exchange, pro¬ 
curing books, etc. He continues : “ The starting of two periodicals, the Stettiner 
