•H5 THE CANADIAN KNToMoUKUST. 



Dr. Horn believes that the Cicindelina have been more thoroughly 

 collected than almost any other group of beetles, and estimates that the 

 number of species still unknown does not exceed twenty or twenty-five per 

 cent of those now described. The Palaearctic region has long since been 

 about exhausted, new species are scarcely to be expected from North 

 America, while Mexico, Central America, western South America, South 

 Africa, as well as most of the islands of the Pacific, Indian and Atlantic 

 Oceans have nearly ceased to yield novelties. The majority of new things 

 must come from China, India, the Philippines, Dutch Borneo; New 

 Guinea, tropical Africa and Australia, Madagascar and Brazil. In this 

 connection it must not be forgotten that the author's conception of a 

 species does not coincide with that of some descriptive entomologists, and 

 forms which appear to be more or less worthy of names will undoubtedly 

 still come to hand in numbers. 



The tiger beetles are regarded as forming a subfamily of Carabida*, 

 under the name Cicindelinte — a reduction in rank, which seems undoubt- 

 edly warranted in view of the evidence presented. After a sketch of the 

 history of their classification, the author presents the arrangement 

 developed by his own researches, separating them into two great phyla, 

 according to the structure of the metepisterna ; these divide again into 

 five tribes, with several minor groups, as follows : 



\ Alakosternal phylum. 



( I. Ctenostomini. 

 I II. Collyrini. 



Mil. Cicindelini. 



H I'lalysternal phylum. 



I. Theralina. .;. I'rothymina. 3. 

 Odontochilina. 4. Cicindelina. 5. 



Dromicina. 

 IV. Megaccphalini. 



I. Mcgacephalina. 2. Omin.T 

 Platychilina. 



V. Mantichorini. 



Of these, <inly III and IV are represented in North America by the 

 Cicindelina, Mcgacephalina and Omina — our genera being Cicindela 

 (including Dromochorui), \fej^acephala( Tetracha), (?///wj and Amblychila. 



