REVIEW. 
German Periodical. 
Wiegman, Archiv.fdr Naturgeschichte. Zweiter Jahrgany, 1, 2, unci 3er, Heft. 
We now proceed to redeem the promise given in our last number to extract 
what appears to be most interesting in the above work, and at the same time to 
give a general idea of its contents. 
The first paper of the first part is an elaborate monagraph by Opatowski, De 
familia fungorum JBoletoideorum , three species of which he separates and forms 
by them two new genera, which are characterized. The remainder, containing the 
typical genus Boletus, he divides into sections and subsectionsaccording to the 
structure of their tube. The species are described very fully, and the synonyms 
carefully introduced. 
We have next Contributions to the History of the Hymenopterci , by Chr. 
Drewson and F. Boie. This paper will necessarily be appreciated by the Entomo¬ 
logist from the glimpses it gives into the history of a tribe of insects of which we 
as yet possess but a very imperfect knowledge. The time has at length arrived 
that due attention commences to be paid to the pupivorus Hymenoptera, which 
from the exceedingly important function they perform in the economy of nature, 
and the powerful influence they exercise over all the other orders of insects, cer¬ 
tainly have not merited the almost gross neglect they have experienced until within 
these few years. Gravenhorst’s labours, in conjunction with those of his worthy 
associate, Nees von Esenbeck, have reduced to something like systematic order 
the chaos in which these insects had been left by all their predecessors ; but even 
their works require revisal. Here we have the more important portion of the his¬ 
tory of a few recorded, which exhibits them in the exercise of their prescribed 
functions, and this with the exception of some scattered observations in the works 
of Gravenhorst, Nees, and Curtis, in the papers of Haliday and Walker, and in 
the pamphlet of Bouche, is all we as yet know of their “ private history.” We 
present our compatriot entomologists with the substance of this paper in the hope 
that it may induce those who possess the opportunity, or who happen to catch such 
evanescent facts to record them; and we invite them to do so, for our pages will 
be always open to their use. It is almost only hence that we can expect to attain 
a more natural arrangement of this extensive host than it has been possible hither¬ 
to to construct. 
The following facts we find here recorded:— 
Ichneumon sicarius , Grav. Both sexes from the pupae of Lithosia rubri- 
collis. 
VOL. i. 
2b 
