RECENT LITERATURE. 931 
Type Species of the Genera of Ichnewmon Flies. By Henry L. 
VierEck. Pp. 1-186. Washington Government Printing 
Office. 1914. (Smithsonian Institution, United States National 
Museum, Bulletin 83.) 
Frxinea the type of a genus is often a difficult business, but when 
the type of each of some two thousand genera has to be ascertained 
the task becomes almost herculean, and the warmest thanks of 
entomologists are due to those who devote their time and ability to 
such labours. 
This catalogue, which is alphabetical in arrangement, deals with 
the Ichneumonide of the world. Genotypes are designated where 
this important matter had not been previously made clear by the 
founder of the genus, or a type selected by a later writer. A very 
large number of genera are monobasic, the term used to express a 
genus based on a single species. 
Common British Beetles. By Rev. Cuarnes A. Haru, F.R.M.S. 
Containing 28 Illustrations, viz.: 8 full-page plates in colour, 
15 in black and white from photographs, 5 drawings in the 
text. Pp. i-vili and 1-88. London: Adam & Charles Black. 
1914. 
TuHIs is one of a series of very inexpensive volumes entitled 
«Peeps at Nature,’ published by Messrs. Black, and edited by the Rev. 
C. A. Hall. It is excellent in every way, and the hope expressed by 
the author that it ‘‘ will be the means of arousing a more general 
interest in beetles’’ is one which we cordially endorse and trust will 
be fully realised. 
The plates, both coloured and plain, are surprisingly good for this 
class of work, and the species selected for figuring just those that 
are most likely to come under the notice of the nature student. The 
text is admirable, the author having been careful to be not only 
accurate but also entertaining. 
Transactions of the City of London Entomological and Natural 
History Society for the years 1912 and 1918. Pp. 66. Plates 
i—vii. The Society, Hall 20, Salisbury House, Finsbury Circus, 
London, K.C. 1914. 
Ty addition to Reports of Field and Ordinary Meetings, there are 
several papers of interest in this volume, among which ‘“ Notes on 
Cenonympha panphilus,’ by Mr. Harold B. Williams; ‘ Notes on 
Thera variata (Schiff.) and 7’. obeliscata (Hb.),” by Mr. L. B. Prout; 
and ‘Some Lycznid Notes, with a Discussion of the Segmentation of 
the Abdomen in Lepidoptera,’ by Dr. Chapman, may be specially 
mentioned. Six of the plates representing genitalia and androconia 
are from photographs by Messrs. F. N. Clark and A. E. Tonge. 
It may be noted here that this Society will in future be known as 
the London Natural History Society, with which the late North 
London Natural History Society is also incorporated. 
