UTAH ACADEMY OF SCIENCES 53 
and great admirer of Linne, attempted a system of 
classification based simply on cephalic distinctions, 
chiefly the maxile. His system also was no improvement 
over that of Linne, yet his work on the lower orders 
was a distinct aid to their better understanding. Leach 
in England adopted part of the Fabrician system and 
fitted it to an extended portion of Linne’s classification. 
He introduced the idea of having all names in the same 
rank end with the same termination. This feature is used 
today except for generic and specific terms. Latreille, 
the first bona fide entomologist (and it is said by author- 
ities of the present time no greater figure has since 
appeared in the entire field) combined the best features 
of preceding systems most intelligently and succeeded 
in erecting the system upon which we depend for our 
present taxonomic work. 
While a satisfactory classification was in process 
of evolution to its culmination in Latreille, other devel- 
opments of the science were rapidly taking place. Insect 
delineation and hand color work in the ofierings of 
Herbst, Huber, Esper, Panzer and others have never 
been excelled. Their work was marvelous for its pre- 
ciseness and faithful reproduction of anatomical and 
chromatic details. 
Considerable advance in the knowledge of insect 
transformations at this time was probably due to the 
inspirational work of Bonnett in his study of the life 
history of the aphid and the phenomenon of agamic 
regeneration. The publication of his results created 
great excitement not only in entomological science, but 
among zoologists in general, and even held the attention 
of the popular mind for a considerable time. About 
fifteen years later Lyonet’s work on the internal anatomy 
of the goat-moth appeared. The major part is concerned 
with the larval stages. It is conceded that no more 
skillful, accurate work of like nature has since appeared. 
As an example of minute dissection, it still stands a 
model in entomological science. Another movement to be 
noted was the establishment of entomological societies to 
provide common meeting places for followers of the sci- 
ence and as a medium through which publications and 
