76 ACCOUNTS, ETC., OF THE BRITISH MUSEUM. 



collection and other sources have been incorporated. Progress has 

 also been made in working out some large collections of Homoptera 

 received from various sources in India and from Indo-China. 



The work of mounting Coccidse and Aphidse on slides, thus 

 making them more valuable for the purpose of study, and the in- 

 corporation of accessions in these important economic groups have 

 been continued. 



The arrangement of the Anoplura and Mallophaga has been 

 continued, and two parts of a long report on a fine collection of these 

 insects received from the Zoological Society have been published 

 with illustrations in the Society's " Proceedings." 



In the Lepidoptera, the re-arrangement of the Pyralidae of the 

 sub-families Hydrocampinse, Scoparianae, and Gallerianae has been 

 completed and that of the Crambinse commenced. The preparation 

 of the MS. dealing with the Noctuinse for the Catalogue of Moths 

 has been continued and completed, and the MS. is now about 

 equivalent in extent to that of three published volumes. 



In the Tineina, the determination and incorporation of species 

 belonging to the Gelechiadse, ^Egeriadse, llyponomeutidse, Tortricidse, 

 and Hepialidse have been continued, and some new forms have been 

 described. 



In the Diptera, the arrangement of the exotic Tipulidse has been 

 continued and completed, and accessions have been incorporated ; 

 the collection of flies made by the Robinson-Kloss Expedition to 

 West Sumatra has been worked out and a report on it prepared for 

 publication. Several collections of mosquitoes have been deter- 

 mined ; and a pamphlet on " Mosquitoes in Relation to Disease *' 

 has been published in the Economic Series. 



Imperial Bureau of Entomology. 



The work carried on by the Imperial Bureau of Entomology has 

 continued to be of considerable benefit to the Department of 

 Entomology ; a large number of accessions has been received 

 through that source, and as many of these accessions had been 

 worked out and in some cases contained a good proportion of types, 

 they formed a valuable addition to the Museum collection. 



II. — Duplicates and Exchanges. 



(a) Duplicates. 



Duplicates have been presented to the following gentlemen who 

 have rendered service by naming specimens : — Mr. H. E. Andrewes, 

 M. Antoine Grouvelle, Prof. A. Hustache, and Mr. L. B. Prout. 



