110 Analytical Notices of Books. 
curately discriminated : the essential differences between closely approxi- 
mating species are pointed out : and the subject is, in short, investigated 
in all its branches with a precision, and to an extent which can scarcely 
be surpassed. 
British Entomology, or Illustrations and Descriptions of the Genera 
of Insects found in Great Britain and Ireland. By Joun Curtis, 
F.L.S. Vol. V. [Nos. xtrx—tzx.] 
In the fifth volume of his illustrations of the genera of our native In- 
sects, Mr. Curtis has fully maintamed the high character for beauty and 
correctness of delineation which we have held to be deservedly due to 
the four which have preceded it. He has also been no less successful in 
furnishing to the entomological student at least an equal share of novel 
information as to the objects of his pursuits with that contained in his 
earlier volumes. Of the forty-eight insects which occupy the plates - 
before us, six only have been previously figured in British works; and 
no less than twenty-four, one half of the whole number, have been for 
the first time represented. Many of these are new as regards the spe- 
cies, and one of them presents a form which had not before been noticed 
by entomological writers. 
This new form belongs to the family of Staphylinide, and is limited, 
so far as our present knowledge extends, to a single species, probably 
the Evesthetus eneopiceus of Mr. Kirby’s manuscripts. Mr. Curtis ap- 
plies to it the name of Synromium. It is nearly allied in form to the 
genus Proteinus, Latr., but is distinguished by its shorter elytra, which 
leave seven segments of the abdomen uncovered, as well as by its very 
differently formed palpi. Of the other Coleopterous genera, Pierosti- 
chus, Colymbetes, Heterocerus, Berosus, Micropeplus, and Telephorus, 
are illustrated by figures and descriptions of new species ; and a third 
British species of Berosus is characterized, which had not previously been 
described. Of Dromius, Clytus, and Orchesia, the species selected 
for representation are new to this country. The only Newropterous insect 
figured is alsonew: it is the Hemerobius fimbriatus. The seven Hy- 
menopterous genera illustrated are extremely prolific in novelty ; no less 
y 
