388 Scientific Intelligence. 



4. Monographia delle Cocciniglie italiane; by Gustavo Leon- 

 ardi. Edited and supplemented by F. Silvestri. Pp. 555, with 

 375 figures. Portici, 1920 (Ernesto della Torre). — This impor- 

 tant work summarizes the results of a lifelong study of the 

 structure, habits and life histories of the scale insects (Coccidae) 

 found in Italy. One hundred and forty-seven species are 

 included, each of these being described in great detail for 

 all stages in the complicated life history and illustrated for the 

 most part by original drawings. Because of the great economic 

 importance of these insects in the destruction of trees, fruits, and 

 other crops this work will prove of service not only to science but 

 also to agriculture, since a complete knowledge of the life of an 

 insect is essential for devising practical measures for its control. 



w. r. c. 



5. Fauna Hawaiiensis; or the Zoology of the Sandwich Isles; 

 being Results of the Explorations instituted by the Joint Com- 

 mittee appointed by the Royal Society of London for Promoting 

 Natural Knowledge and the British Association for the Advance- 

 ment of Science, and carried on with the assistance of those 

 Bodies and of the Trustees of the Bemice Pauahi Bishop Museum 

 at Honolulu. Three volumes, quarto ; 2410 pp., with 64 plates ; 

 edited by David Sharp. Cambridge, 1899-1910 (University 

 Press). — The land fauna of the Hawaiian islands is of particular 

 interest to zoologists because of- the question concerning its 

 origin. Determination of the closeness of its relationship with 

 that of other islands of the Pacific or with that of the American 

 continent will afford evidence as to the nature of the geological 

 changes which have occurred in the more recent eras. These 

 studies, undertaken when the zoology of the islands was almost 

 unknown, show a land fauna consisting of more than 3,300 

 species of insects, 500 forms of mollusks and 50 birds, including 

 the many new species described in these reports. There are no 

 indigenous mammals, earthworms or ants. The introduction by 

 R. C. L. Perkins, consisting of 228 pages, with 16 plates, reviews 

 the salient features of all groups of the fauna and discusses the 

 evidence as to the origin of the latter. 



In Volume I, R. C. L. Perkins and Aug. Forel describe many 

 new genera and species among the 178 species of aculeate 

 Hymenoptera now recorded from the islands ; Edward Meyrick 

 describes 200 new Macrolepidoptera among the 292 species 

 found; Lord Walsingham lists 441 species of Microlepidoptera, 

 of which 420 are endemic and mostly new to science; W. H. 

 Ashmead records 128 species of parasitic Hymenoptera, includ- 

 ing many new forms ; while the birds are discussed by R. C. L. 

 Perkins. 



The Orthoptera and Neuroptera and supplements to the 

 Hymenoptera, and Diptera by R. C. L. Perkins are included in 



