PEEFACE. 
The conclusion of the 3rd Volume of the " Entomologist's Monthly 
Magazine " is considered by the Editors of that publication to be a 
fitting occasion for expressing their acknowledgments to their numerous 
supporters. 
As the Magazine derived its origin entirely from the personal 
friendship of its Conductors, and was started — as scarcely need be 
added — not only without any hope of gain, but with the tolerable 
certainty of loss, it is a matter of some gratification to them that they 
are now enabled to report their undertaking as in an unexpectedly 
satisfactory condition, with regard to the financial department. 
The sale of back numbers, having increased to an extent far 
greater than was anticipated, has (somewhat undesirably) caused 
several parts of Vol I. to be now out of print: it is, therefore, impos- 
sible to furnish complete series of that volume, except in its bound 
form ; the precaution of reserving a few sets of the latter having been, 
taken. 
With respect to the volume now completed, the Editors flatter 
themselves that an examination of its Index will sufficiently show its 
value, either from a scientific or a general point of view. To mention 
special papers would be invidious ; but the publication of so many 
valuable contributions towards a more perfect knowledge of our native 
Insect-fauna as have appeared in Vol. III. must alone render it of 
lasting assistance to British Entomologists. 
It has been suggested by some of our compatriots, and also by 
the learned Editor of the " Bericht iiber Entomologie," that lengthy 
papers should not be too much subdivided. The Editors will endeavour 
