568 Suites a Buffbn. 
The present work is of a more comprehensive character. Besides 
describing the species known to be natives of France, as well as 
such kinds belonging to the adjacent districts as are thought likely 
to occur in that country (of course indicating the latter by a dis- 
tinctive mark), the types of other European genera are noticed, and 
an account given of the principal foreign Diptera found in French 
cabinets, with a view of supplying the deficiencies of Wiedemann's 
Exotic Diptera. In order to accomplish these various objects within 
a limited space, the descriptions and general history are very much 
condensed, but no important fact appears to be omitted. Being 
now familiar with the subject, the author acts a more independent 
part, and proposes various new genera, most of them on such judi- 
cious grounds that they can scarcely fail to be generally adopted. 
One of the most valuable parts of the work, and which tends more 
than any other to facilitate the study, is the synoptical tables of the 
genera prefixed to each family. Upon the whole, a safer guide than 
Macquart in the study of this interesting tribe of insects, cannot be 
obtained, not only on account of his own intrinsic merits, but as being 
the most recent writer on the subject, and consequently able to avail 
himself of all that is most valuable in the works of his predecessors ; 
and this he must be admitted to have done with considerable judg- 
ment. 
The accompanying fasciculi of plates merit the praise of consi- 
derable accuracy, and are therefore useful as illustrating the text, 
but they are executed with little taste, and have scarcely any 
value as works of art. In the productions of Curtis, Westwood, 
Swainson, and others, we are now becoming familiar with such ele- 
gant delineations of insect forms, that this defect appears more con- 
spicuous than it would have done at a former period. The cheap- 
ness of the French plates constitutes their principal recommendation, 
but even this does not appear incompatible with a more tasteful exe- 
cution ; if it be, no one would refuse to sacrifice something to the 
graces. 
To Dr Boisduval none of our entomological readers require any in- 
troduction. He has long since established a claim on their favourable 
regard by the publication of various valuable papers on insects, parti- 
cularly that relating to the natural history of those of Madagascar. The 
lepidopterous tribes especially, have been his favourite study, and in 
the work cited above, (viz. Species General) we have the fruit of an 
almost uninterrupted attention to the subject from the time that he 
