36 THE CANADIAN ENTOMOLOGIST. 



BOOK NOTICE. 



Genera Insectorum diriges par P. Wytsman, Coleoptera Adephaga, fam. 

 Carabidae, subfam. Cicindelinae, von der Walther Horn, 1910. Fasci- 

 cule 82b avec planches, 6-15. 



This, the second part of Dr. Horn's "Cicindelinae," has recently come 

 from the press, and is devoted to the platysternale phylum, including the 

 tribes Mantichorini, Megacephalini and Cicindelini, The general plan 

 follows that indicated in the review of the first part (vide Canadian 

 Entomologist, 19 10, p. 65), but so many items of interest to American 

 entomologists appear that it seems worth while to notice them in some 

 detail. 



Under Dr. Horn's arrangement, our genera, Amhlychila and Omus 



(together with the South American Pycnoc/iila), form the subtribe Omina 



of the tribe Megacephalini. Of Amblychi/a, two species are recognized, 



cyliiidriformis Say (with the subspecies picolotniftii Reiche), and baroni 



Rivers (with the subspecies Schwarzi W. Horn), the recently described 



lo7igipes Csy. ranking as a synonym of barotii. In Omiis only three 



species are recognized, dejeani Reiche, submetalHcus Horn, and cali- 

 foniicus Esch. The first two of these are without synonymy, but the 

 string of names assigned to subspecific or other local forms o{ calif ortiicus 

 is a long one. Those given specific rank are (i) vaiidykei W. Horn, (2) 

 audouiiii Reiche, (3) ambiguus Schpp., [^)pu?icii/rons Csy., (5) sequoiarinn 

 Cr., {6) fraiercu/us Csy., (7) horni Lee, (8) levis Horn, (9) edwardsi 

 Cr., (10) ifitermedius Leng, (11) lecontei Horn, (12) fuchsi W. Horn. 

 This leaves about two dozen of the names applied by LeConte, W. Horn 

 and Casey with no higher value than that of synonyms. The reviewer is 

 bound to confess that his own series of Omus is too small to throw any 

 light upon the matter. Tetracha^ which is made a subgenus of Megace- 

 phala, of the subtribe Megacephalina, gets through with no change of 

 name in our two species. The arrangement of the Cicindelini is not 

 completed in this section, but it is divided into two subtribes, only one of 

 which (Cicindelina) is found with us. This has not been reached, but the 

 next part, containing it, will be looked forward to with interest and 

 perhaps with some apprehension by subscribers to the work. 



Something should be said of the plates, which are beautifully 

 executed, and illustrate a large number of exotic forms, as well as a few 

 from North America. As in the preceding part, a good share of the 

 drawings are devoted to structural details. The work as a whole is to be 

 recommended to all naturalists interested in phylogenetic studies, since it 

 represents the views of a writer who considers the insect not as a mere 

 separate entity, but in relation to life as a whole. H. F. Wickham. 



Mailed January 12th, 191 1. 



