TITLES. 
In$. 5 
discussion (714) of the distinctions between workers and queolis in ants 
contributes considerably to greater exactness, where this has hitherto been 
too much wanting. 
Fabre has published another volume of his well-known work. The 
contents are very varied, dealing with several Orders, and show no falling 
off in their interest and importance. He considers that he has proved the 
occurrence of parthenogenesis in one of the generations of Halictus to be 
the normal state of affairs. He has accurately observed the larval habits 
of Volucella and declares the supposed mimicry of the fly to be “ puerile.” 
Davenport’s (381) study of the movements of Poduridaz is of real 
interest. He concludes that “the instincts have selected the habitat.” 
Janet gives a paper with a valuable account of habits of wasps (783). 
Silvestri makes an important contribution (1425) to our knowledge of 
Termites and termitophilous insects, and Tragardh (1540) discusses the 
same subject. 
M. Coutagne (353) gives us a serious study of experiments as to 
heredity in connection with silkworms, cohcltidihg that heredity, instinct 
and memory are different manifestations of a single essential property 
possessed by all living matter. 
Fischer (513) continues his discussion of the bearing of experimental 
varieties on general questions. 
Kieffer (829) makes an addition to the meagre list of apterous Diptera. 
Holmgren’s sketch of viviparity in Insects (715) is very useful. 
The results M. de LApouge (911) gives of his examination of remains 
of Carabi from a Belgian peat-moss are to Some extent contradictory and 
inconsistent. It is very desirable that so interestihg a subject should be 
thoroughly elucidated. 
Osten Sacken’s work (1096) contains much information aS to the 
Dipterologists of the 19th centmy. 
In Economic we may notice Watt & Mann’s work on Tea-pests. The 
British Museum Natural History Catalogue of books, Lanrester (910), 
will be very Useful whfen colnpleted. 
An innovation has befen introduced in the subject Index “ Faunistic,” 
inasmuch as subordinate localities and the names of groups are introduced 
into most of the references. It is hoped this may be found useful in 
limiting the number of references that must be made by anyone who is 
working at a group Smaller than the Order. This change throws additional 
labour on the Recorder and if deemed superfluous he will be glad to 
dispense with it in future. 
The Finland Zoological publications are several of them again late in 
reaching the Libraries, but thanks to the kindness of authors aiid of some 
of the Societies I am able to record most of the papers published there 
in 1903. 
I. TITLES.* 
1. Abeille de Perrin, E. Remarques sur deux nouvelles formes de 
Trec/ius aveugles fra^ais. Bull. Soc. ent. France 1903, pp. 208, 209. 
[Coleoptera.] 
2. . Description de deux espbees de Trec/ms aveugles europeens. 
T. c. pp. 298, 299. \Colcoptera.'] 
* An asterisk prefixed to a quotation indicates that the Recorder has not seen the 
Journal or Work referred to. 
