viii PREFACE. 



On the lGth of June, 1874, lie died of consumption, in the 

 33rd year of his age, deeply lamented by a world-wide circle 

 of friends, who feel that thereby the science of Entomology 

 has also lost an accomplished and useful worker, who would 

 have done still greater things if he had been spared a few 

 more years. 



It only now remains for me to give an indication, in the 

 form of a table of tribes and genera, of the author's arrange- 

 ment of, and additions to, the family of the Coccinellidcv, 

 trusting that in some way this may render the work slightly 

 more easy for reference and study. In hoping that 

 his labours may be the means of encouraging many to 

 study this beautiful but comparatively neglected family of 

 beetles, and prove of value to those who already know much 

 about them, I am, I believe, only expressing that which Mr 

 Crotch had so fervently at heart, when he prepared the work. 



KOBERT H. F. EIPPON. 



9, Petersfield, Park Side, Cambridge, 

 September 1st, 1874. 



The Author of the present treatise, well and widely known 

 to entomologists for the zeal and ability with which he 

 devoted himself to the study and pursuit of his favourite 

 science, and endeared to those intimately acquainted with 

 him by his keen sense of honour, frankness, manly courage, 

 and loving unselfish nature, having left England on a long 

 projected entomological journey to the southern hemisphere 

 vid the United States of America, and California, during its 

 progress through the press, his friend, Mr R. H. F. Rippou, 

 of Cambridge, undertook the onerous task of supervising the 

 concluding portion of the work 1 . 



1 Pages 1— ICO wcro revised by Mr Crotch, and printed off prior to his 

 leaving England in October, 1872. 



