xlvii 
A memoir " On the Genera of Cossonidse," by T. Vernon 
Wollaston, M.A., F.L.S., has appeared in our Transactions, and 
is another example of the minute care which its author bestows 
upon every group which he takes in liand. The number of 
genera here elaborated amounts to one hundred and twenty-two. 
I cannot, however, perceive the advantage of giving the generic 
tabulation, the generic characters, the detailed observations on 
the genera, and the descriptions of the species contained in these 
genera, in four different portions of the memoir, thereby entailing 
so much extra trouble in bringing all that relates to each genus 
under one point of view. 
Under the title ' Endomycici recitati,' the Eev. H. S. Gorliam 
has published a catalogue of the family Endomychidas (Eumor- 
j)hid8e), with descriptions of thirty-seven new species, making a 
total of three hundred and two described species. The group is 
divided into the following so-called families : — 
1 Eumorpbidse. 6. Enclomycidae. 
2. Corjnomalidae. 7. Leiestidte. 
3. Lycoperdiuidse. 8. Paussoideidae. 
4. Epipocidse. " 9. Myceteidse. 
5. PalasomorpliidiB. 
Seven of these groups are named, as usual, after the leading genus 
in each ; and it is to be regretted that this uniformity was not main- 
tained throughout, since the eighth is named from a resemblance 
between the antennae of its only genus Trochoideus and those of 
some of the Paussidee, and the fifth from an idea entertained by 
the author that the Stenotarsi are the most ancient of the insects 
contained in the entire group. I protest against any such vague 
notions being concentrated ii:ito family or other names. It would 
also have added greatly to the utility of the work if the author 
had given the usual references to the works where the different 
species in his Catalogue had been described. How, for instance, 
is the student to trace out of the multitudinous writings of 
Mulsant where the description of Poljanus, Muls., nigricornis. 
Mills., is to be found ? We should not forget that whilst, Ars 
{entomologica) long{iss%m)a, vita hrevis est. 
The steady investigation of the difficult and very numerous 
species of dragonflies, by the Baron Edm. de Selys-Longchamps, 
has brought up our knowledge of the section Gomphines to two 
