82 Psyche [April 



10. Lauxania cyclindricornis Fabricius. Profile of head. 



11. Xangelina nigra Williston. Profile of head, from Williston. 



12. Caliope gracilipes Loew. Profile of head. 



13. Sapromyza monticola, new species. Profile of head. 



14. Minettia lupulina Fabricius. Front and face. 



15. Lonckcea polita Say. Profile of head. 



16. Palloptera setosa, new species. Profile of head. 



17. Palloptera arcuata Meigen. Wing. 



18. Palloptera superba Loew. Wing. 



19. Palloptera jucunda Loew. Wing. 



20. Palloptera setosa, new species. Wing. 



21. Palloptera terminalis Loew. Wing. 



BOOK NOTICE. 



Injurious Insects. How to recognize and control them. By Walter C. O'Kane^ 



Pp. 1-414; figs., 606. The Macmillan Company, New York. 



This little book is without a parallel in so far as a concise and scientific treatment 

 of economic entomology is concerned. It is built on a plan of three parts. Into 

 the first part O'Kane gathers material which deals with the structure, habits and 

 classification of insects. Some of the subjects in this part are very lightly touched, 

 but enough of insect adaptations and habits are given to arouse an interest in people 

 engaged primarily in the control of noxious forms. The second part deals with 

 various methods of control such as crop rotation and mechanical means involving 

 banding, screening and trapping. Many insecticides for biting and sucking 

 insects are given as well as repellants and fumigants. This is followed by three 

 illustrated chapters on spray machinery and its uses. Part three is entitled "In- 

 jurious Insects" and constitutes the bulk of the book. This section deals with 

 insect pests of garden and field crops and with those infesting orchards and small 

 fruits, followed by a chapter on household pests and one on those of domestic an- 

 imals. Each economic species is treated separately, and with the aid of the ex- 

 cellent photographs which accompany each description, one is able to recognize the 

 insect in question. The life history and habits which are naturally bound up with 

 the injury inflicted to plant or animal are discussed in a clear and concise manner. 

 If a method of control is known, it invariably follows. 



O'Kane's conciseness in exposition and consistency in treatment are two of the 

 book's most prominent features. The sentence construction in places is not as 

 good as it might be, but this occasional weakness is not such as to cause any great 

 difficulty. The photographs are another feature worthy of mention for they are 

 well chosen and usually illustrate the insect, its stages and its destructive work, all 

 of which should aid materially in identification. 



The book is of such a nature that few would care to read it through from cover 

 to cover, but it will undoubtedly prove to be an invaluable handy reference work 

 to both entomologist and layman. 



R. W. Glasek. 

 Bussey Institution. 



