COLEOPTERA 



i8- 



This table shows that about 28 per cent, of the species of Hawaiian Carabidae have 

 the thoracic setae normal, the other 72 per cent, suffering reduction : the number 

 that have suffered total loss of the setae being about as great as that in which the 

 structures remain normal. The three groups are considerably different ; only nine per 

 cent, of the Anchomenides remain normal, while about 39 per cent, have totally lost the 

 setae. In Bembidiides only three out of 21 species have any diminution of the setae. 



Very little is known statistically as to Coleopterous chaetotaxy, and it will of course 

 be long before statistics dealing with the whole order can be obtained. Even as to 

 the Carabidae we must wait long for adequate information, but as I have at different 

 times dealt with Carabidae from various other parts of the world I can say that I believe 

 that nowhere else have the beetles of the corresponding groups anything approaching to 

 similar statistics. \\ e have not in Britain a single member of these three groups that 



F. H. III. 24 



