554 Zoology. 



arranged by Dr. J. S. Baly, and in 1860 the early group of the 

 Haltkidee by the Rev. Hamlet Clark. 



Owing to the acquisition of the Bowring collection in 1863, 

 the collection of Coleoptera became so congested that a complete 

 expansion and rearrangement of the various families became 

 necessary ; therefore, in 1864, Mr. F. Smith rearranged the 

 Cetoniadse, Bujwestidse, and the straight-horned Curculionidse. He 

 completed the arrangement of the Curculionidse in 1865. In 



1866 Mr. C. O. Waterhouse commenced the arrangement of the 

 Melolonthidse, Butelidse, and other Lamellicorn families, and in 



1867 he arranged the Hydradephaga, Mr. Smith commencing the 

 arrangement of the Phytophaga, which was continued for some 

 years. 



In 1874, owing to the purchase of the Saunders collection 

 of Buprestidse, that family again needed revision and expansion. 

 This work was undertaken conjointly by Messrs. F. Smith and 

 C. 0. Waterhouse. In 1875 the Passalidse and part of the 

 Longicorns were arranged by Mr. Waterhouse, the Longicorns 

 being continued in 1876 and 1877; in 1878 he arranged the 

 Lycidse and catalogued them. From this date to 1887 little or 

 nothing seems to have been done in the arrangement of this Order, 

 the time of Mr. Waterhouse having been chiefly occupied with 

 the registration, labelling, and incorporation of accessions, and the 

 description of new species. In 1887, however, Mr. C. J. Gahan 

 commenced a complete revision and rearrangement of the Longi- 

 corn Coleoptera, incorporating the numerous accessions received 

 since its last arrangement, and this work was continued until 

 1890, when this Assistant took up the Phytophaga. Meanwhile, 

 in 1888, Mr. Waterhouse arranged the Bostrichidse and, in 1889 

 and 1890, the Scarabseidse. In 1891 Mr. Gahan commenced the 

 Galerucidse, which he completed in 1894. In 1895 Mr. Gahan 

 proceeded to the Eumolpidse, which he completed in 1897, since 

 which time he has devoted his time to the incorporation of 

 accessions, working out and more critically revising certain of the 

 more difficult groups of Longicorns and identification of undeter- 

 mined material. In 1897 the Endomychidse and Coccinellidse 

 were arranged by Mr. G. J. Arrow, who, in 1898, arranged the 

 Melolonthidse, expanded and partly arranged the Bynastidse, and 

 commenced the Butelidse, which he completed in 1900, subse- 

 quently dealing with the remaining families of Lamellicornia 

 (Geotrupidse, Aphodiidse, etc.) and in 1904 undertaking the 

 Passalidse. He also expanded the Cicindelidse in 1899. A 



