The object of this little book is to give in as simple a form as possible a short account of some of the British Wild Bees, Wasps, Ants, etc., scientifically known as the Hymenoptera aculeata. Of these the non-scientific public rarely recognizes more than the Hive Bee, the Humble Bee, the Wasp, and the Hornet, whereas there are about 400 different kinds to be found in this country, and they can be recognized by any one who is disposed to make a special study of the group. These pages are written only for the non-scientific, as the scientific entomologist will be already familiar with the elementary facts recorded; but it is hoped that they may be of interest to lovers of Nature who wish to know a little about the insects they see around them and how they spend their lives. Of this knowledge very little exists, as the scraps which have been here brought together evidence. There is an immense field open for research and observation, and the writer of this little book will be very glad if the following pages should encourage anyone to take up the subject and add to our present scanty stock of information.