49 



Our Shade Trees and their Insect Defoliators ; being a consideration of the four most 

 injurious species which affect the trees of the Capital ; with means of destroying 

 them. By Prof. 0. Y. Riley. Bulletin No. 10. 



The species referred to are the Elm-leaf Beetle (Galerucha xanthomelcena Schrank.) ; 

 the Bag Worm (Thyridopteryx ephemerce/ormis Haw.) ; the White-marked Tussock-moth 

 (Orgyia leucostigma Sm. & Abbot) ; and the Fall Web-worm (Hyphantria cunea Drury). 



Reports of Experiments with Various Insecticide Substances, chiefly upon insects affecting 

 garden crops, made under the direction of the Entomologist. Bulletin No. 11. 



Miscellaneous Notes on the Work of the Division of Entomology for the season of 1885, 

 Prepared by the Entomologist. Bulletin No. 12. 



These four works abundantly testify to the value of the Government Commission on 

 Entomology at Washington, and to the ability and industry of its members. 



Arsenical Poisons for the Codling Moth (Oarpocapsa pomonella L.) By Dr. S. A. Forbes, 

 State Entomologist of Illinois. Bulletin No. 1. 



Another valuable contribution to Economic Entomology, the result of careful and 

 painstaking work in the field. 



Rhopalocera Malay ana : A description of the Butterflies of the Malay Peninsula. 

 By W. L. Distant. London, 1882-86, 486 pages, 46 plates. 



A short time ago we called attention to a work in progress on the Butterflies in 

 India. Immediately thereafter there came to hand the final part of another notable 

 work on the butterflies of a region still nearer our antipodes — the Malay Peninsula. In 

 this instance the work was undertaken by the author under peculiarly favourable circum- 

 stances, inasmuch as all pecuniary anxiety was removed by the appearance of a Maecenas 

 in the person of Mr. D. Logan, of Penang, to whom all credit is due by naturalists the 

 world over, not only for the generous way in which he has allowed the work to be gotten 

 up and illustrated, but for his excellent choice of an author. For Mr. Distant, on his 

 side, has performed his task in a very scholarly manner, and given us a book leaving little 

 to be desired, beyond that constant and bitter craving of naturalists for a knowledge of 

 the earlier stages of life of the insects treated. We could indeed wish that the structural 

 characteristics of the larger divisions had been more amply treated, and that the author 

 had not rested satisfied with groupings in the Lycaenina^ and Hesperida?, newly manu- 

 factured, confessedly artificial and temporary, and to which the very descriptions which 

 follow do violence. But the excellence of the entire work, the consistent manner in 

 which the task has been carried out, the technical skill, excellent judgment and broad 

 learning everywhere displayed, as well as the very considerable addition to our knowledge 

 involved, disarms adverse criticism and invites only praise. Would that such a Maecenas 

 and such an author might oftener company together ! 



The work is published in quarto in sumptuous style, is unexceptionable in typography 

 and profusely illustrated. Besides 46 plates of some of the best chromo-lithographs of 

 butterflies which we have ever seen, there are 129 wood cuts scattered through the text, 

 generally illustrating special structural features, especially in neuration and leg structure, 

 which are of the greatest value. The author, as would have been expected of one of our 

 best lepidopterists, familiar with the structure as well as the earJy stages, the form and 

 colouring of butterflies, has followed closely in the lines of classification made prominent 

 in recent years by Bates, in which the Hesperida3 are immediately preceded by their 



4 (EN.) 



