403] 



COLORS OF TIGER BEETLES— SHELFORD 



succeeding pages. The meaning of the designations is as follows: 

 B, British Museum ; C, Cambridge University ; D, Berlin ; G, Gestro ; 

 H, W. Horn, Berlin ; M, U. S. National LIuseum ; N, Xeviusou ; 0, Oxford 

 University; P, Paris; S, Shelford; U, University of Chicago. 



While none of the patterns of the genera other than Ciciudela are 

 of a type differing from the general plan of the Ciciudela, patterns are 

 very often wanting or veiy simple, such as the simple cross bands in 

 Collyris. In course of the examination of the several collections named, 

 a great abuudance of variation has beeu noted in some of the commoner 

 representatives of the groups, not only of Ciciudela but others also. 



The taxonomic arrangement of Ciciudela by Doctor Horn in the 

 Genera Insectorum is especially fortunate. He has arranged the species 

 into a niimber of groups on the basis of the distribution of hairs on the 

 head, thorax, abdomen, tarsi, labrum, and of other structural characters, 

 but without reference to color patterns. He gives 174 groups apparently 

 not duplicated in the different regions and 16 represented in more than 

 one zoogeographic region by the same or closely related species. These 

 174 groups are distributed as follows : Ethiopian region, 34 ; Oriental , 

 region, 48 ; Australian region, 22 ; Palearotic region which he extends 

 to include China, 20; Nearctie region, 24; Neotropical region, 26. The 

 groups foimd in more than one region and which are counted in the one 

 with most species, are as follows : 



Table I 

 Showing the Number of Species in Regions by Groups as Designated by a 

 Common Species 



singularis Chd 



melancholica Fab 



doncgaleiisis Chd 



iiilotica Dj 



grrmanica L - 



foveolata Schm 



laetescripta Mtsch 



10 guttata Fab 



striolata Ulig 



discrete Schm 



seiniciiicta Br 



brcfispoiiosKsW'. Horn 



carthagena Dej 



argentata Fabr 



irifasciafa Fabr 



macrocnema Chd 



