RECENT LITERATURE. 155 



years past. It is to be hoped tliat this improvement will be maintained 

 in future. In the President's Address reference is made to the question 

 of " Collector v. Entomologist," and certain lines of experimental 

 work suggested to the collector or practical entomologist who may 

 desire to assist in elucidating some of the questions connected with 

 variation, heredity, and the general laws operating in the production 

 of species. 



The ' Proceedings ' will be found to embrace a good deal of 

 instructive matter, and the papers generally are excellent. Among 

 the latter we would especially direct attention to Mr. Enock's " Life- 

 history of Cicindela canipestris" ; " Further Notes on Triph ana comes, 

 Hb. [orhona, Fab.)," by Mr. E. Adkin; "Is Cold the Cause of Melanism 

 in Scotch Specimens of l^riphana orhona, Hufn. [comes, Tr.) ? " by Mr. 

 Tutt ; "What is the Cause of Melanism in the Scotch Specimens of 

 TripJmna comes, Hb. [orbona, Fb.)? " by Mr. Adkin ; and " Notes on 

 AcidaUa marginepunctata and Cyaniris (Lycana) arglolus," also by 

 Mr. Adkin. 



The figures of portions of the male antennae of Hybernia aurantiaria 

 and H. defoUaria, reproduced from photographs by Mr. F. Clark, are 

 of great interest ; and the same remark applies to the drawings of C. 

 aryiolus depositing ova, and those showing larvae of the same species 

 resting on flower-buds of ivy. 



Beport of Observations of Injurious Insects and Common Farm Pests, 

 during the year 1896, ivith Methods of Prevention and Iktnedy. 

 Twentieth Keport. By Eleanor A. Ormerod. Pp. i-x, 1-160. 

 London: Simpkin, Marshall, Hamilton, Kent, & Co., Limited. 



1897. 



The importance of Miss Ormerod's annual volume is now so widely 

 acknowledged, and its value so generally understood, that it seems 

 unnecessary to do more than announce publication of the Report for 

 1896. It may be noted, however, that although "many kinds of 

 agricultural insect infestations were present during the year, no special 

 attack was seriously prevalent over the whole island." Altogether 

 some thirty injurious insects are referred to, and of these eleven belong 

 to the order Lepidoptera, and six to Coleoptera. The article on 

 (Jarpocapsa pomonella (the codlin moth), and that on the two parasitic 

 flies — Cephenomyia rufibarbis and Lipoptera cervi, are each of considerable 

 interest. In the chapter on Musca domestica a great deal of informa- 

 tion concerning the life-history of the species is brought together. 



Notes on Lepidoptera Collected in the Edinhurqli District. By William 



Evans, F.R.S.E. (Ann. Scott. Nat. Hist., No. 22, pp. 89-110, 



April, 1897.) 

 Preliminary List of the Neiiroptera and Trichoptera of Yorkshire (omitting 



Psocidce and Ephemeridce). By G. T. Porritt, F.L.S., F.E.S. 



('Naturalist,' April, 1897, pp. 115-126.) 

 hnaginal Discs in hisccts. By Henry S. Pratt, Ph.D. ('Psyche,' 



February, 1897, pp. 15-30.) 



